Change search
Refine search result
3456789 251 - 300 of 4628
CiteExportLink to result list
Permanent link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Rows per page
  • 5
  • 10
  • 20
  • 50
  • 100
  • 250
Sort
  • Standard (Relevance)
  • Author A-Ö
  • Author Ö-A
  • Title A-Ö
  • Title Ö-A
  • Publication type A-Ö
  • Publication type Ö-A
  • Issued (Oldest first)
  • Issued (Newest first)
  • Created (Oldest first)
  • Created (Newest first)
  • Last updated (Oldest first)
  • Last updated (Newest first)
  • Disputation date (earliest first)
  • Disputation date (latest first)
  • Standard (Relevance)
  • Author A-Ö
  • Author Ö-A
  • Title A-Ö
  • Title Ö-A
  • Publication type A-Ö
  • Publication type Ö-A
  • Issued (Oldest first)
  • Issued (Newest first)
  • Created (Oldest first)
  • Created (Newest first)
  • Last updated (Oldest first)
  • Last updated (Newest first)
  • Disputation date (earliest first)
  • Disputation date (latest first)
Select
The maximal number of hits you can export is 250. When you want to export more records please use the 'Create feeds' function.
  • 251.
    Andreasson, Jesper
    et al.
    Linnaeus University, Faculty of Social Sciences, Department of Sport Science.
    Johansson, Thomas
    University of Gothenburg.
    Online Doping2015In: Paper presented at the Journal of youth studies conference, March 30-April 1, 2015, Copenhagen, 2015Conference paper (Refereed)
    Abstract [en]

    In Sweden, but also internationally, official regimes and public health organizations conduct fairly comprehensive anti-doping measures. As a consequence, numerous ‘new’ ways to learn about and access these types of drugs have emerged. Social media and different Internet forums, for example, have become part of a new self-help culture in which mainly young people anonymously can approach these substances, discuss their experiences of using them, and minimize the possibility of encounters with the police. What we see today is the development of new doping trajectories. This presentation is based on a ethnographical inspired research project that focuses on how the use of performance- and image-enhancing drugs (PED) is perceived and negotiated socially in the context of an Internet-mediated and online community called Flashback. The results of the study are in accordance with similar studies on Internet bodybuilding communities. That is, even though the community members to a certain degree are aware of the risks and health costs of this kind of physical regime, the gains of using PED clearly dominate the discussions. Adding to this research, the results also indicate that in the imaginary world of online bodybuilding a number of ideas about the ‘genetic max’, as well as the ultimate possibility of exceeding one’s limits, and creating something special and extra-ordinary, circulate. These stories confirm in many ways the legitimate mission of searching for the ultimate bodybuilding adventure, using different means and methods to transcend the limits of the self/body.

  • 252.
    Andreasson, Jesper
    et al.
    Linnaeus University, Faculty of Social Sciences, Department of Sport Science.
    Johansson, Thomas
    University of Gothenburg.
    Online doping: The new self-help culture of ethnopharmacology2016In: Sport in Society: Cultures, Media, Politics, Commerce, ISSN 1743-0437, E-ISSN 1743-0445, Vol. 19, no 7, p. 957-972Article in journal (Refereed)
    Abstract [en]

    In Sweden, but also internationally, official regimes and public health organizations conduct fairly comprehensive antidoping measures. As a consequence, numerous ‘new’ ways to learn about and access these types of drugs have emerged. Social media and different internet forums, for example, have become part of a new self-help culture in which people can anonymously approach these substances, discuss their experiences of using them and minimize the possibility of encounters with the police. This article focuses on how the use of performance- and image-enhancing drugs (PED) is perceived and negotiated socially in the context of an internet-mediated and online community calledFlashback. The results are in accordance with similar studies on internet bodybuilding communities. That is, even though the participants to a certain degree are aware of the risks and health costs of this kind of physical regime, the gains of using PED clearly dominate the discussions. Adding to this research, this article found that in the imaginary world of online bodybuilding a number of ideas about the ‘genetic max’, as well as the ultimate possibility of exceeding one’s limits, and creating something special and extraordinary, circulate. These stories confirm in many ways the legitimate mission of searching for the ultimate bodybuilding adventure, using different means and methods to transcend the limits of the self/body.

  • 253.
    Andreasson, Jesper
    et al.
    Linnaeus University, Faculty of Social Sciences, Department of Sport Science.
    Johansson, Thomas
    Göteborgs Universitet.
    The Fitness Revolution: Historical Transformations in the Global Gym and Fitness Culture.2014In: Sport Science Review, ISSN 2066-8732, Vol. XXIII, no 3-4, p. 91-112Article in journal (Refereed)
    Abstract [en]

    Today, fitness gyms and private health clubs are a huge global business. Fitness has turned into a folk movement, but not one comparable to the old 20th-century movements, often connected to national sentiments, but instead a highly individualized preoccupation. In this article the historical development of modern gym and fitness culture is described and an analytically developed approach to the understanding of the emergence of this multi-billion-dollar phenomenon is developed. The analysis suggest that the techniques, tools, and physical exercises used today in gyms all over the world are the results of a physical culture developed and refined during the 20th century. The body ideals, exercises, techniques, and the pedagogy of fitness have become an increasingly international enterprise. A tentative analysis of the globalization of gym and fitness culture is developed and presented. Three important and decisive phases in the globalization of gym and fitness culture are identified and analyzed.

  • 254.
    Andreasson, Jesper
    et al.
    Linnaeus University, Faculty of Social Sciences, Department of Sport Science.
    Johansson, Thomas
    University of Gothenburg.
    The Global Gym: Gender, Health and Pedagogies2014Book (Refereed)
    Abstract [en]

    Both by participating in the everyday life of fitness professionals, gym-goers and bodybuilders, and by analyzing fitness blogs and other sources, The Global Gym explores fitness centres as sites of learning. The authors examine the kind of learning processes that take place within the gym and the wider fitness industry, and investigate how knowledge is acquired, negotiated and embodied by different agents operating within this context. Beyond this, the book also addresses the construction of gender within fitness culture. Many images of the body beautiful and perfect body ideals are manufactured and sold on a global commercial market. Jesper Andreasson and Thomas Johansson illustrate various extant modes of learning by asking how physical, psychological and cultural knowledge about health and the body is incorporated into people's (gender) identity in a local, national and global gym and fitness context.

  • 255.
    Andreasson, Jesper
    et al.
    Linnaeus University, Faculty of Social Sciences, Department of Sport Science.
    Johansson, Thomas
    The Global Gym: Gender, Health and Pedagogies2013Conference paper (Other academic)
  • 256.
    Andreasson, Jesper
    et al.
    Linnaeus University, Faculty of Social Sciences, Department of Sport Science.
    Johansson, Thomas
    Göteborgs universitet.
    The Health Guru: Masculinity and Fitness Coaching in the Blogosphere2013In: Journal of Men's Studies, ISSN 1060-8265, E-ISSN 1933-0251, Vol. 21, no 3, p. 277-290Article in journal (Refereed)
    Abstract [en]

    Through a close study of blogs, where male fitness experts share their expertise, this article analyses how masculinity are framed within the Internet-mediated context of the fitness culture. This is done against the background of Connell's theory of masculinity, and recent critiques of the concept of hegemony. Through an in-depth analysis of three blogs, we get a complex and contradictory image of the different forms of masculinity portrayed in these blogs and in fitness culture at large. The texts and imagery on the blogs clearly exceeds the criteria/limits of traits and norms traditionally considered male or female. In doing so, the may contribute to an increased acceptance for, for example, gay identities and other submissive masculinities.

  • 257.
    Andreasson, Jesper
    et al.
    Linnaeus University, Faculty of Social Sciences, Department of Sport Science.
    Johansson, Thomas
    University of Gothenburg.
    The new fitness geography: the globalisation of Japanese gym and fitness culture2017In: Leisure Studies, ISSN 0261-4367, E-ISSN 1466-4496, Vol. 36, no 3, p. 383-394Article in journal (Refereed)
    Abstract [en]

    Using a minor case study of the local fitness culture scene in Tokyo, Japan, this exploratory and qualitative article aims to discuss and analyse the consequences of globalisation of fitness culture. The article focuses particularly on how fitness culture is negotiated in Japanese society – at a national, local and subjective level, and in relation to attempts to uniformly rationalise and standardise gym and fitness culture. The results indicate that the fitness geography is changing, and through the establishment of a globalised fitness culture, Japanese youth are following in the footsteps of many other countries. However, this does not mean that we are witnessing a homogenisation process, or a completely McDonaldised version of fitness culture in Japan. Instead, this cultural phenomenon is shaped and formed in particular ways, pointing towards certain strong national sentiments concerning body ideals, views on gender and exercise and relaxation. For example, the cuteness ideal has a strong influence on the way young women talk about and perceive body ideals and corporeal performances in Japan.

  • 258.
    Andreasson, Jesper
    et al.
    Linnaeus University, Faculty of Social Sciences, Department of Sport Science.
    Johansson, Thomas
    University of Gothenburg.
    Danielsson, Tom
    Linnaeus University, Faculty of Social Sciences, Department of Sport Science.
    Becoming an Ironman triathlete: Extreme exercise, gender equality and the family puzzle2018In: Sport in Society: Cultures, Media, Politics, Commerce, ISSN 1743-0437, E-ISSN 1743-0445, no 9, p. 1351-1363Article in journal (Refereed)
    Abstract [en]

    Departing from a qualitative research approach, this article focuses on Swedish amateur Ironman triathletes and their family life. The purpose of the paper is to investigate how an elite amateur lifestyle is upheld and balanced with the demands of a sustainable family and social life. The results indicate that the process of becoming and staying an Ironman creates tensions in intimate relationships, making it hard to bring the family life puzzle together. Although the participants interviewed often talk about family life in terms of sharing things fairly equally, in terms of gender equity and involved parenthood, this seemingly is not always an easy ideal to fulfil in practice. On a broader cultural level, these findings can thus be contextualized in relation to discourses associated with the gendering of families and functions, and, of course, the gender of sport and performance.

  • 259.
    Andreasson, Jesper
    et al.
    Linnaeus University, Faculty of Social Sciences, Department of Sport Science.
    Johansson, Thomas
    University of Gothenburg.
    Mattsson, Christer
    From subcultures to common culture: Bodybuilders, skinheads and the normalization of the marginal2016In: Nordic Youth Research Symposium (NYRIS), Youth Moves. Voices, Spaces, Subjectivities. Trollhättan, Sweden, 15-17 june, 2016 / [ed] Emma Sorbring, 2016Conference paper (Refereed)
    Abstract [en]

    Using bodybuilding and skinheads/neo-Nazis as two rather diverse examples of subcultures, this study is a theoretical exploration of our understanding of the concept of subculture and common culture. The aim is to explore how the concept of subculture can be used in relation to processes of normalization and marginalisation. The focus is on the historical, symbolic and biographical relation between the subculture and the subcultural response, and socio-political transformations in society and culture. We are interested in understanding the processes in which for example bodybuilding has moved back and forth between a subcultural position and more common fitness culture, over time. As a parallel to this, we are also interested in how subcultures centred on skinheads, neo-Nazis and right-wing extremists influence and are connected to more general political transformations and opinions in contemporary society, blurring the distinction between subculture and common culture. The results indicate a complex relation between subcultures and the mainstreaming of certain values, opinions and practices. Deviance is sometimes, over time, renegotiated within common culture, turned into normality , and whereas extreme parts and contents of subcultures may be toned down in this process, core points and values may be extracted and generalized. Bodybuilding is for example transformed into fitness, but the core values of hard bodies, muscle training, health and asceticism are highly present in fitness culture, as well as in more common and dominant socio-cultural patterns. In a similar vein, the core values and sentiments in skinhead and right-wing subcultures xenophobia and nationalism are today becoming a part of the political culture in many European countries.

  • 260.
    Andreasson, Jesper
    et al.
    Linnaeus University, Faculty of Social Sciences, Department of Sport Science.
    Tugetam, Åsa
    Linnaeus University, Faculty of Social Sciences, Department of Sport Science.
    Bergman, Patrick
    Linnaeus University, Faculty of Social Sciences, Department of Sport Science.
    Keeping Death at Bay through Health Negotiation: Older Adults' Understanding of Health and Life within Gym and Fitness Culture2016In: Activities, Adaptation & Aging, ISSN 0192-4788, E-ISSN 1544-4368, Vol. 40, no 3, p. 200-218Article in journal (Refereed)
    Abstract [en]

    This article analyses older adults’ trajectories leading to membership in a gym, and the ways in which they negotiate their self-understanding, aging, and health in this context. Emanating from an ethnographic study, the arguments are based on a constructionist approach. The results show that older adults’ decision to start going to a gym should be understood in relation to an individualized health care system in Swedish society and as a means of negotiating deteriorating health, retirement, lost body capacity, and the meaning of becoming old. The physical activities carried out and the social relationships developed in these contexts are used to construct an empowered self-understanding prepared to challenge the “stiffness” of the dying body.

  • 261.
    Andrén, Henrik
    et al.
    Växjö University, Faculty of Humanities and Social Sciences, School of Education.
    Eriksson, Jonas
    Växjö University, Faculty of Humanities and Social Sciences, School of Education.
    Sport manager: en kartläggning av rollen inom golf och ishockey2006Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Att det har hänt väldigt mycket inom idrotten sedan dess start vet vi, men frågan är hur idrotten kommer att utvecklas i framtiden? Ett begrepp som blivit alltmer modernt inom svensk idrott på senare år är Sport management. Med tanke på att management eller sport inte är några nya företeelser så är sport management eller management of sport heller inga nya företeelser. För flera tusen år sedan anordnades matcher och tävlingar som arrangerades av managers. Idag har kommersialiseringen och professionaliseringen ökat och vuxit sig allt starkare inom den nationella idrottssektorn. Detta har bidragit till att större krav och ansvar lagts på de människor som har i uppgift att handha och organisera idrott.

    I detta examensarbete har vi valt att titta närmare på vilka kompetenser, arbetsuppgifter samt personlighetsegenskaper som kännetecknar dagens sport manager inom idrotterna golf och ishockey. För att få fram en bra bild av hur sport managers arbetar, vilka kompetenser de besitter och hur de uppfattas som personer väcktes tanken om att genomföra en enkätundersökning parallellt med intervjuer av ett antal större golf- och ishockeyföreningar. Utifrån denna fundering kontaktades respektive golf- och ishockeyförenings ordförande för att kunna uppfylla följande syfte:

    Syftet med detta examensarbete är att kartlägga vilka kompetenser, arbetsuppgifter, personlighetsegenskaper som kännetecknar en sport manager inom svenska golf-, respektive ishockeyföreningar idag. Dessutom är syftet att undersöka hur dessa föreningar gått tillväga då de anställt sin/sina sport managers.

    Svaren som gavs ledde till en god och stabil grund för att kunna ställas i relation till de teorier som vi valt att basera examensarbetet på. Vi sammanställde resultaten utifrån enkäterna och intervjuerna i ett statistikprogram för att kunna urskilja likheter och olikheter mellan de olika respondenternas svar.

    Resultaten visar att golf och ishockeyklubbarna valt att anställa en eller flera sport managers för att kunna utveckla föreningen och dess verksamhet. Studien visar också på att ledarskap och strategi är de mest efterfrågade kompetenser hos en sport manager samt att de personlighetsegenskaper som karaktäriserar en framgångsrik ledare kan urskönjas i dagens sport manager inom golf och ishockey. Studien visar till sist att golfklubbarna valt att annonsera ut sina lediga tjänster i betydligt högre omfattning än vad ishockeyklubbarna gjort.

  • 262.
    Andrén, Magnus
    et al.
    Växjö University, Faculty of Humanities and Social Sciences, School of Education.
    Lyyski, Jani
    Växjö University, Faculty of Humanities and Social Sciences, School of Education.
    ”Jaha, vad skall vi hitta på idag? Och kanske något annat imorgon?” : En kvalitativ studie av idrottsföreningars arbete med vision, verksamhetsidé och mål2006Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Abstract summary

    _____________________________________________________________________

    Author: Magnus Andrén and Jani Lyyski

    Title: Vision, company idea & goal – A qualitative study of two sport fraternities

    Växjö university Pages: 96

    _____________________________________________________________________

    Contents

    The purpose of this rapport is to study the terms of strategy within vision, company idea, and goal. To critically survey the work of sport fraternities with these terms; to suggest development possibilities with the chosen terms.

    The following questions have been the foundation to be able to reach the purpose:

    • What theories are active with the terms vision, company idea and goal?

    • How do the sport fraternities work with these terms?

    o How are the terms formed?

    o How are these terms being implemented?

    o How do you get the terms to pervade thru the company?

    • What are the differences/similarities between the literature and the work of the sport fraternities with the terms vision, company idea and goal?

    • How can the sport fraternities develop these terms and get them to work in their company?

    The rapport is written within the frame of Coaching and Sport Management at Växjö university, and is aimed for sport fraternities that are pursuing to either find a tool to get the company towards a common goal, or to create an interesting argument among the chosen terms within the strategy. Furthermore, we feel that the rapport in first hand will focus on the boards and committees of fraternities, and in second hand also the individual member.

    The study begins with a problem formula, where we present our hypostasis of sport fraternities who does not work actively enough with the strategy terms. It ends with what methods will work, which is the basis for the rapport. Relevant literature and theories are presented in relationship to sport fraternities in the next chapter.

    The result shows us that sport fraternities use the terms randomness, inactive, on different levels, and without profiling. Since we got these results, we feel that sport fraternities need to develop these strategies to be able to meet the future demands on a sport fraternity. In the final discussion we give suggestions on development possibilities for these terms, for sport fraternities to use.

    _____________________________________________________________________

  • 263.
    Anens, Elisabeth
    et al.
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Neuroscience, Physiotherapy.
    Emtner, Margareta
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Neuroscience, Physiotherapy. Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Respiratory Medicine and Allergology.
    Hellström, Karin
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Neuroscience, Physiotherapy.
    Exploratory Study of Physical Activity in Persons With Charcot-Marie-Tooth Disease2015In: Archives of Physical Medicine and Rehabilitation, ISSN 0003-9993, E-ISSN 1532-821X, Vol. 96, no 2, p. 260-268Article in journal (Refereed)
    Abstract [en]

    Objectives: To explore and describe the perceived facilitators and barriers to physical activity, and to examine the physical activity correlates in people with Charcot-Marie-Tooth (CMT) disease. Design: Cross-sectional survey study. Setting: Community-living subjects. Participants: Swedish people with CMT disease (N=44; men, 54.5%; median age, 59.5y [interquartile range, 45.3-64.8y]). Interventions: Not applicable. Main Outcome Measures: The survey included open-ended questions and standardized self-reported scales measuring physical activity, fatigue, activity limitation, self-efficacy for physical activity, fall-related self-efficacy, social support, and enjoyment of physical activity. Physical activity was measured by the Physical Activity Disability Survey-Revised. Results: Qualitative content analysis revealed that personal factors such as fatigue, poor balance, muscle weakness, and pain were important barriers for physical activity behavior. Facilitators of physical activity were self-efficacy for physical activity, activity-related factors, and assistive devices. Multiple regression analysis showed that self-efficacy for physical activity (beta=.41) and fatigue (beta=-.30) explained 31.8% of the variation in physical activity (F-2,F-40=10.78, P=.000). Conclusions: Despite the well-known benefits of physical activity, physical activity in people with CMT disease is very sparsely studied. These new results contribute to the understanding of factors important for physical activity behavior in people with CMT disease and can guide health professionals to facilitate physical activity behavior in this group of patients. (C) 2015 by the American Congress of Rehabilitation Medicine

  • 264.
    Angelin, Mathias
    et al.
    Örebro University, School of Health Sciences.
    Hallor, Anton
    Örebro University, School of Health Sciences.
    Kan koffein innan träning förbättra den aeroba prestationen över tid?2017Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Introduktion

    : För att prestera väl inom en uthållighetsbaserad idrott krävs en hög aerob förmåga. För att öka den aeroba prestationen krävs träning, vilket har varit känt länge. Att maximera effekten av träningen är av stort intresse hos de allra flesta idrottare. Forskare studerar hela tiden nya tekniker för att försöka optimera ökningar i den aeroba prestationen. Koffein ökar akut tiden till utmattning vid given belastning, men frågan kvarstår om koffein även skulle kunna öka den aeroba prestationen över tid.

    Syfte

    : Att undersöka den långvariga effekten vid intag av 5mg/kg kroppsvikt koffein innan högintensiva intervallpass över tid på den aeroba prestationen hos motionslöpare.

    Metod:

    En randomiserad mellangrupps-studie med 5mg/kg kroppsvikt koffein och placebo. 16 deltagare (3 kvinnor och 13 män; medelvärde ± SD, 42 ± 8 år, VO2max: 47,6 ± 6,6 ml/kg/min) deltog i studien. Pre- och post-tester gjordes för VO2max och 3km löpning. Intervention bestod av två högintensiva löp-pass per vecka med intag av antingen koffein eller placebo 30–60 minuter innan träning. Borgskalan (6–20) användes som mått på ansträngning under intervaller. För att beräkna skillnader mellan grupper användes oparat t-test mellan grupper samt parat t-test inom grupp. Signifikansnivån sattes till P <0,05.

    Resultat

    : Ingen signifikant skillnad i delta(Δ) uppmättes mellan Δkoffein och Δplacebo i någon av mätningarna. Signifikant förbättring i tid på 3km löpning (P <0,05) för båda grupper, signifikant förbättring i VO2max för placebogrupp.

    Slutsats

    : Intag av 5mg/kg kroppsvikt koffein 30–60 minuter innan 2 högintensiva intervallpass/vecka har ej ytterligare effekt på den aeroba prestationen jämfört med placebo över en sex veckor lång intervention.

  • 265.
    Anna, Johansson
    Mid Sweden University, Faculty of Human Sciences, Department of Health Sciences.
    Faktorer som motiverar till fysisk aktivitet - en litteraturöversikt.2014Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
  • 266.
    Anselmius, Johan
    Örebro University, School of Health and Medical Sciences, Örebro University, Sweden.
    Kaloriförbrukning vid AVG-utövande: En kvantitativ studie angående fysisk påfrestning2012Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    AbstraktInledning Det råder en omfattande hälsoproblematik idag och fysisk inaktivitet är en bidragande orsak. Stillasittandet har ökat i västvärlden och för att fånga även dessa individer erbjuder Tv-spelsmarknaden fysiskt aktiva spel. Handkontroll och stillasittande byts ut mot individens kroppsrörelser. Det finns till och med spel som räknar individens kaloriförbrukning under spelets gång.Syfte Syftet med studien är att se om det råder en signifikant skillnad gällande kaloriförbrukning mellan Your shape och indirekt kalorimetri samt hur Your shape förhåller sig mot Nintendo Wii boxing utifrån de fysiologiska variabler hjärtfrekvens och kaloriförbrukning.Metod En experimentell studiedesign genomfördes på 12 deltagare (7 kvinnor och 5 fem män med en medelvärdeskaraktärisering på 22.2 år, 67,9 kg, 171,3 cm och 23,0 BMI) med hjälp av indirekt kalorimetri i form av en portabel Oxycon Mobile Pro. VO2 och HF uppmättes under testet för att därefter räkna ut testpersonernas kaloriförbrukning. Spelkonsolen bestod av Microsoft xbox 360 med tillhörande kinect samt AVG-spelet Your shape. Av de fyra träningspassen som Your shape erbjuder valdes konditionsboxning ut till denna studie. Den statistiska beräkningen sattes till P = 0.05 och ett parat T-test genomfördes i SPSS.Resultat En signifikant skillnad existerade (P = 0.03) gällande kaloriförbrukning mellan Your shape och Oxycon Mobile Pro. Medelvärdet för testet gällande tid var 32 min och Your shape resulterade i ett medelvärdet på 139.7 kcal och Oxycon Mobile Pro 157.8. En skillnad på 12 %. Your shape underestimerar kaloriförbrukningen jämfört mot Oxycon Mobile Pro.Your shape redovisade högre resultat för både kcal/min och HF jämfört mot Nintendo Wii boxing.Slutsats Det finns en signifikant skillnad mellan Your shape och Oxycon Mobile Pro, nämligen en underskattning från Your shape med 12 %. Vilket ger en god uppskattning av kalorimätaren. Your shape är ett modernare AVG-spel jämfört mot Wii boxing men kräver liknande fysisk påfrestning.

  • 267.
    Anselmius, Johan
    et al.
    Örebro University, School of Health and Medical Sciences.
    Milton, Ludvig
    Örebro University, School of Health and Medical Sciences.
    Expand A Lung: Ett träningsverktyg för andningsmuskulaturen?2011Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

     Abstrakt

     

    Syfte:

    Syftet var att undersöka om prestation och uthålligheten hade förbättrats vid användandet av Expand a lung.

     

    Metod:

    En intervention genomfördes på sju testpersoner (4 kvinnor & 3 män) som använde Expand a lung under fjorton dagar, som jämfördes mot en kontrollgrupp på fyra testpersoner (2 kvinnor & 2 män). Testpersonerna genomförde två tester, med en intervall på fjorton dagar. I undersökningen figurerade 4 kvinnor och 3 män (ålder: 22.7 ± 2, vikt: 68.5 ± 10, längd: 175.1 ± 8.5) i experimentgruppen. 2 kvinnor och 2 män (ålder: 22.5 ± 1.5, vikt: 69 ± 9, längd: 170.7 ± 5.5) ingick i kontrollgruppen. Hjärtfrekvens, respiratoriska kvoten och blodlaktat uppmättes med hjälp utav Jaeger Oxycon Pro och lungvolym (SVC & FEV1) uppmättes med hjälp av Spirare SPS 310.

     

    Resultat:

    Ingen signifikant skillnad existerade inom grupperna. Experimentgruppen: SVC före x 4.73, SVC efter x 4,77. FEV1 före x 4.31, FEV1 efter x 4.29, HF (vid OBLA) före x 156, HF efter 155, RQ (vid OBLA) före x 1.04, RQ efter 1.05. Kontrollgruppen: SVC före x 4.98, SVC efter x 4.95. FEV1 före 4.48, FEV1 efter x 4.49, HF (vid OBLA) före x 165, HF efter 163, RQ (vid OBLA) före x 0.99, RQ efter x 1.00. Det som gick att urskilja var att det fanns skillnader på individnivå.

     

    Diskussion:

    Vår undersökning visade ingen signifikant skillnad på gruppnivå efter 14 dagars användande av Expand a lung. Dock fanns det skillnader på individnivå. Detta resultat kan bland annat bero på för kort träningsperiod och för få deltagare. Om Expand a lung kan förbättra prestationen vid träning under längre tid kan vi inte uttala oss om utan krävs vidare forskning.

     

    Nyckelord:

    Expand a lung, andningsmuskulaturträning, laktat, lungvolym.

    Inledning:

    Det existerar träningsredskap som utlovar en ökning gällande prestation och uthållighet, i träningssammanhang, av människans andningsmuskulatur. Träningsredskapen isolerade träningen till att bara sätta andningsmuskulaturen i arbete. Expand a lung var en av dessa nya, mer obeprövade, träningsredskap som utlovade en förbättrad prestation och uthållighet vid ett frekvent användande. Samtidigt visade en befintlig del av forskning att det indirekt inte gick att träna andningsmuskulaturen. Vi påträffade aldrig granskade vetenskaplig forskning som kunde fastställa vad Expand a lung utlovade.

  • 268.
    Aphram, Petra
    et al.
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences.
    Kaldoyo, Patricia
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences.
    "Vi kan prata om ALLT mellan himmel och jord": Elitidrottande kvinnors upplevda relation till sin manliga tränare2016Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Sammanfattning

    Syfte och frågeställningar

    Syftet med denna studie är att undersöka hur elitidrottande kvinnor upplevde relationen till sin tränare. Mer specifikt hur idrottarna upplever dimensionerna 1) samspel, 2) förståelse, 3) närhet och 4) engagemang till sin tränare.

    Metod

    Studien baseras på semistrukturerade intervjuer med fyra elitidrottande kvinnor i åldrarna 18-25 år. Två av idrottarna ägnade sig åt en individuell idrott (tennis) och två ägnade sig åt en lagidrott (fotboll). I studien besvarades studiens frågeställningar med hjälp av 3+1C modellen som är ett teoretiskt underlag att analysera tränar-idrottarerelationen.

    Resultat

    Samtliga idrottare upplevde att de fyra dimensionerna var viktiga för att få relationen med tränaren att fungera. Samtliga idrottare nämnde att samspel var grunden i relationen, förståelse i relationen handlade om att anpassa sig efter varandras behov, engagemang var viktig framförallt från tränarens sida och närhet byggdes upp med hjälp av att hitta förtroende och tillit för varandra.

    Slutsats Vårt resultat visar att relationen till tränaren är en viktig faktor för att båda parter ska må bra, hur relationen till tränaren är visade sig i studien vara avgörande för både den personliga och idrottsliga utvecklingen hos idrottaren. Det är inte bara upplevelsen av de fyra dimensionerna som är avgörande för hur relationen ska fungera, utan studien visade att det är många andra faktorer också som påverkar kvalitén på relationen till tränaren.

  • 269.
    Appelqvist, Emma
    Mid Sweden University, Faculty of Human Sciences, Department of Health Sciences.
    Fysiska aktivitetens påverkan på hälsorelaterad livskvalitet hos äldre2016Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
  • 270. Apple, F.S
    et al.
    Tesch, P.A
    CK and LD isozymes in human single muscle fibers in trained athletes1989In: Journal of applied physiology, ISSN 8750-7587, E-ISSN 1522-1601, Vol. 66, no 6, p. 2717-2720Article in journal (Refereed)
  • 271.
    Apro, William
    et al.
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Åstrand Laboratory of Work Physiology, Eva Blomstrand's research group.
    Moberg, Marcus
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Åstrand Laboratory of Work Physiology, Eva Blomstrand's research group.
    Ekblom, Björn
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Åstrand Laboratory of Work Physiology, Björn Ekblom's research group.
    Holmberg, Hans-Christer
    Mittuniversitetet.
    Blomstrand, Eva
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Åstrand Laboratory of Work Physiology, Eva Blomstrand's research group.
    High intensity interval cycling performed prior to resistance exercise stimulates autophagy signaling2016In: Conference program & abstracts, 2016, p. 84-84Conference paper (Other academic)
  • 272.
    Apro, William
    et al.
    Swedish Sch Sport & Hlth Sci, Astrand Lab, SE-11486 Stockholm, Sweden.
    Moberg, Marcus
    Swedish Sch Sport & Hlth Sci, Astrand Lab, SE-11486 Stockholm, Sweden.
    Hamilton, D. Lee
    Univ Stirling, Hlth & Exercise Sci Res Grp, Stirling FK9 4LA, Scotland.
    Ekblom, Björn
    Swedish Sch Sport & Hlth Sci, Astrand Lab, SE-11486 Stockholm, Sweden.
    van Hall, Gerrit
    Univ Copenhagen, Rigshosp, Dept Biomed Sci, DK-1168 Copenhagen, Denmark.
    Holmberg, Hans-Christer
    Mid Sweden University, Faculty of Human Sciences, Department of Health Sciences.
    Blomstrand, Eva
    Swedish Sch Sport & Hlth Sci, Astrand Lab, SE-11486 Stockholm, Sweden.
    Resistance exercise-induced S6K1 kinase activity is not inhibited in human skeletal muscle despite prior activation of AMPK by high-intensity interval cycling2015In: American Journal of Physiology. Endocrinology and Metabolism, ISSN 0193-1849, E-ISSN 1522-1555, Vol. 308, no 6, p. E470-E481Article in journal (Refereed)
    Abstract [en]

    Combining endurance and strength training in the same session has been reported to reduce the anabolic response to the latter form of exercise. The underlying mechanism, based primarily on results from rodent muscle, is proposed to involve AMPK-dependent inhibition of mTORC1 signaling. This hypothesis was tested in eight trained male subjects who in randomized order performed either resistance exercise only (R) or interval cycling followed by resistance exercise (ER). Biopsies taken from the vastus lateralis before and after endurance exercise and repeatedly after resistance exercise were assessed for glycogen content, kinase activity, protein phosphorylation, and gene expression. Mixed muscle fractional synthetic rate was measured at rest and during 3 h of recovery using the stable isotope technique. In ER, AMPK activity was elevated immediately after both endurance and resistance exercise (similar to 90%, P < 0.05) but was unchanged in R. Thr(389) phosphorylation of S6K1 was increased severalfold immediately after exercise (P < 0.05) in both trials and increased further throughout recovery. After 90 and 180 min recovery, S6K1 activity was elevated (similar to 55 and similar to 110%, respectively, P < 0.05) and eukaryotic elongation factor 2 phosphorylation was reduced (similar to 55%, P < 0.05) with no difference between trials. In contrast, markers for protein catabolism were differently influenced by the two modes of exercise; ER induced a significant increase in gene and protein expression of MuRF1 (P < 0.05), which was not observed following R exercise only. In conclusion, cycling-induced elevation in AMPK activity does not inhibit mTOR complex 1 signaling after subsequent resistance exercise but may instead interfere with the hypertrophic response by influencing key components in protein breakdown.

  • 273.
    Apró, William
    et al.
    Swedish Sch Sport & Hlth Sci, Stockholm, Sweden.
    Holmberg, Hans-Christer
    Mid Sweden University, Faculty of Human Sciences, Department of Health Sciences.
    Rooyackers, Olav
    Karolinska Univ Hosp, Huddinge, Sweden.
    Blomstrand, Eva
    Swedish Sch Sport & Hlth Sci, Stockholm, Sweden.
    Is leucine induced p70S6 kinase phosphorylation following resistance exercise dependent on elevated phenylalanine levels in human skeletal muscle?2010In: The FASEB Journal, ISSN 0892-6638, E-ISSN 1530-6860, Vol. 24, p. lb273-Article in journal (Refereed)
    Abstract [en]

    The purpose of this study was to investigate the specific role of

    leucine in the stimulation of the mammalian target of rapamycin

    signalling pathway. Six male subjects performed four heavy

    resistance exercise sessions, each separated by approximately one

    week. Subjects were randomly supplemented with one of four

    drinks: placebo (flavored water), leucine or essential amino acids

    (EAA) with and without leucine. Immediately following each

    exercise session, four subjects were infused with a flooding dose of

    L-[2H5] phenylalanine (Inf) while two subjects served as controls

    (Ctrl). Muscle biopsies were taken before and one hour after

    exercise. In the Ctrl group, resistance exercise resulted in a

    substantial increase (45-fold) in p70 kinase phosphorylation

    when all EAA were ingested, whereas ingestion of leucine alone

    had no greater effect than that of placebo. In the Inf group,

    however, ingestion of leucine alone and EAA increased p70

    phosphorylation to a similar extent (35-fold). The divergent

    signalling response in the two groups suggests that leucine alone is

    insufficient to increase p70

    phosphorylation. Indeed, in the Inf

    group, there was a strong correlation (r=0.91) between

    p70 phosphorylation and the product of muscle leucine and

    phenylalanine levels. These results suggest that the stimulatory

    effect of leucine on p70 phosphorylation is dependent on

    elevated muscle phenylalanine levels. Supported by the Swedish

    National Centre for Research in Sports

     

  • 274.
    Apró, William
    et al.
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Åstrand Laboratory of Work Physiology, Eva Blomstrand's research group.
    Moberg, Marcus
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Åstrand Laboratory of Work Physiology, Eva Blomstrand's research group.
    Holmberg, Hans-Christer
    Blomstrand, Eva
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Åstrand Laboratory of Work Physiology, Eva Blomstrand's research group.
    Amino Acid-induced S6K1 Activity In Human Skeletal Muscle Is Mediated By Increased mTor/Rheb Interaction: 128 June 1, 11: 15 AM - 11: 30 AM.2016In: Medicine And Science In Sports And Exercise 2016 May; Vol. 48 (5S Suppl 1), pp. 17., 2016, Vol. 48, no 5S Suppl 1, p. 17-17Conference paper (Refereed)
    Abstract [en]

    Cell culture studies have shown that amino acids activate mTORC1 signaling by increasing the interaction between mTOR and its essential activator Rheb. However, the existence of this mechanism in human skeletal muscle remains to be determined.

    PURPOSE: To determine if increased mTORC1 signaling in response to amino acids in human skeletal muscle is due to an increased interaction between mTOR and Rheb.

    METHODS: Eight well trained men performed resistance exercise on two separate occasions. In connection with the exercise, subjects were supplemented with flavored water (Pla) and essential amino acids (EAA) in a double-blind, randomized cross-over design. Muscle biopsies were taken in the vastus lateralis muscle before, immediately after and 90 and 180 min post exercise. Activity of the mTORC1 pathway was assessed by a radiolabeled in-vitro kinase assay for its immediate downstream target S6K1. Protein-protein interactions were determined by western blot following co-immunoprecipitation of mTOR with Rheb. Co-immunoprecipitation was performed on pooled muscle samples from three of the eight subjects.

    RESULTS: Activity of S6K1 remained unchanged immediately after exercise in both trials. However, at 90 min post exercise, S6K1 activity increased by approximately 2- and 8-fold (p<0.05) from baseline the Pla and EAA trials, respectively. At the 180 min time point, S6K1 activity remained elevated in both trials being approx. 3-fold higher in the Pla trial and 5-fold higher (p<0.05) in the EAA trial. The fold-change in mTOR and Rheb interaction largely resembled the activity pattern of S6K1 in both trials; in the Pla trial the fold-change was 0.9, 1.3 and 1.4 while in the EAA trial the fold-change was 1.6, 2.9 and 1.9 immediately after, 90 min after and 180 min after exercise, respectively.

    CONCLUSIONS: The large increase in S6K1 activity following EAA intake appears to be mediated by an increased interaction between mTOR and its proximal activator Rheb. This is the first time this mechanism has been demonstrated in human skeletal muscle.

  • 275.
    Apró, William
    et al.
    Swedish School of Sport and Health Sciences, Stockholm, Sweden.
    Moberg, Marcus
    Swedish School of Sport and Health Sciences, Stockholm, Sweden.
    Holmberg, Hans-Christer
    Mid Sweden University, Faculty of Human Sciences, Department of Health Sciences.
    Blomstrand, Eva
    Swedish School of Sport and Health Sciences, Stockholm, Sweden.
    Amino Acid-induced S6K1 Activity in Human Skeletal Muscle is Mediated By Increased mTor/Rheb Interaction: 128 June 1, 11: 15 AM - 11: 30 AM2016In: Medicine & Science in Sports & Exercise, ISSN 0195-9131, E-ISSN 1530-0315, Vol. 48, no 5 Suppl 1, p. 17-Article in journal (Refereed)
    Abstract [en]

    Cell culture studies have shown that amino acids activate mTORC1 signaling by increasing the interaction between mTOR and its essential activator Rheb. However, the existence of this mechanism in human skeletal muscle remains to be determined.

    PURPOSE: To determine if increased mTORC1 signaling in response to amino acids in human skeletal muscle is due to an increased interaction between mTOR and Rheb.

    METHODS: Eight well trained men performed resistance exercise on two separate occasions. In connection with the exercise, subjects were supplemented with flavored water (Pla) and essential amino acids (EAA) in a double-blind, randomized cross-over design. Muscle biopsies were taken in the vastus lateralis muscle before, immediately after and 90 and 180 min post exercise. Activity of the mTORC1 pathway was assessed by a radiolabeled in-vitro kinase assay for its immediate downstream target S6K1. Protein-protein interactions were determined by western blot following co-immunoprecipitation of mTOR with Rheb. Co-immunoprecipitation was performed on pooled muscle samples from three of the eight subjects.

    RESULTS: Activity of S6K1 remained unchanged immediately after exercise in both trials. However, at 90 min post exercise, S6K1 activity increased by approximately 2- and 8-fold (p<0.05) from baseline the Pla and EAA trials, respectively. At the 180 min time point, S6K1 activity remained elevated in both trials being approx. 3-fold higher in the Pla trial and 5-fold higher (p<0.05) in the EAA trial. The fold-change in mTOR and Rheb interaction largely resembled the activity pattern of S6K1 in both trials; in the Pla trial the fold-change was 0.9, 1.3 and 1.4 while in the EAA trial the fold-change was 1.6, 2.9 and 1.9 immediately after, 90 min after and 180 min after exercise, respectively.

    CONCLUSIONS: The large increase in S6K1 activity following EAA intake appears to be mediated by an increased interaction between mTOR and its proximal activator Rheb. This is the first time this mechanism has been demonstrated in human skeletal muscle.

  • 276.
    Arastoo-Pour, Danial
    Linnaeus University, Faculty of Social Sciences, Department of Sport Science.
    Hur påverkar effekten av styrkan och dragfrekvensen vid ett 1000 m roddmaskinstest?2017Independent thesis Advanced level (degree of Master (One Year)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Rowing is a sport dependent on high endurance capacity, where most of the large muscles in the body are used, the three energy systems are involved and the body is in need of a large amount of energy. Concept 2 rowing ergometers is a sport of itself but is performed mostly during the winter season for outdoor rowers to see the performance and do physiological tests. The purpose of this project was to see if there is any correlation between stroke rate, average power, 1RM deadlift and finishing time on 1000 m rowing machine performance, for 9 adult male rowers. The correlation was studied with linear regression analysis.

       The hypothesis was that lower rate leads to higher mean power in each stroke and higher stroke rate leads to lower power in each stroke.

       The results showed no correlation between stroke rate, heavier weight lifted in deadlift and finishing time. Where a lower stroke rate and higher mean effect lead to a lower finishing time, p and r2 value for the correlation between time and stroke rate was 0.109 for r2 and p=0.385, p=0.210 and r2 value 0.214 for the correlation between time and deadlift, for the correlation between time and mean effect, the r2 value was 0.75 and p=0.0025, which indicate a strong correlation.

           It is more benefit if one row with higher force on the rowing machine than rowing on the water. Further, the results show that it is an advantage if the rowers train more strength, because more power leads to a more powerful stroke and lower time.

  • 277.
    Ardern, Clare
    et al.
    Linköping University, Department of Medical and Health Sciences, Division of Physiotherapy. Linköping University, Faculty of Medicine and Health Sciences. Aspetar Orthopaed and Sports Medical Hospital, Qatar; La Trobe University, Australia.
    Glasgow, Philip
    Sport Northern Ireland Sports Institute, North Ireland; University of Ulster, North Ireland.
    Schneiders, Anthony
    Central Queensland University, Australia.
    Witvrouw, Erik
    Aspetar Orthopaed and Sports Medical Hospital, Qatar; University of Ghent, Belgium.
    Clarsen, Benjamin
    Norwegian School Sports Science, Norway; Olymp Elite Sports Program Olympiatoppen, Norway.
    Cools, Ann
    University of Ghent, Belgium.
    Gojanovic, Boris
    Hop La Tour, Switzerland; Lausanne University of and Hospital, Switzerland.
    Griffin, Steffan
    University of Birmingham, England.
    Khan, Karim M.
    University of British Columbia, Canada.
    Moksnes, Havard
    Norwegian School Sports Science, Norway; Olymp Elite Sports Program Olympiatoppen, Norway.
    Mutch, Stephen A.
    SPACE Clin, Scotland; Murrayfield Stadium, Scotland.
    Phillips, Nicola
    Cardiff University, Wales.
    Reurink, Gustaaf
    Sports Phys Grp, Netherlands.
    Sadler, Robin
    Manchester City Football Club, England.
    Gravare Silbernagel, Karin
    University of Delaware, DE USA.
    Thorborg, Kristian
    University of Copenhagen, Denmark.
    Wangensteen, Arnlaug
    Aspetar Orthopaed and Sports Medical Hospital, Qatar; Norwegian School Sports Science, Norway.
    Wilk, Kevin E.
    Champ Sports Med, AL USA.
    Bizzini, Mario
    Schulthess Clin, Switzerland.
    2016 Consensus statement on return to sport from the First World Congress in Sports Physical Therapy, Bern2016In: British Journal of Sports Medicine, ISSN 0306-3674, E-ISSN 1473-0480, Vol. 50, no 14, p. 853-864Article in journal (Refereed)
    Abstract [en]

    Deciding when to return to sport after injury is complex and multifactorial-an exercise in risk management. Return to sport decisions are made every day by clinicians, athletes and coaches, ideally in a collaborative way. The purpose of this consensus statement was to present and synthesise current evidence to make recommendations for return to sport decision-making, clinical practice and future research directions related to returning athletes to sport. A half day meeting was held in Bern, Switzerland, after the First World Congress in Sports Physical Therapy. 17 expert clinicians participated. 4 main sections were initially agreed upon, then participants elected to join 1 of the 4 groups-each group focused on 1 section of the consensus statement. Participants in each group discussed and summarised the key issues for their section before the 17-member group met again for discussion to reach consensus on the content of the 4 sections. Return to sport is not a decision taken in isolation at the end of the recovery and rehabilitation process. Instead, return to sport should be viewed as a continuum, paralleled with recovery and rehabilitation. Biopsychosocial models may help the clinician make sense of individual factors that may influence the athletes return to sport, and the Strategic Assessment of Risk and Risk Tolerance framework may help decision-makers synthesise information to make an optimal return to sport decision. Research evidence to support return to sport decisions in clinical practice is scarce. Future research should focus on a standardised approach to defining, measuring and reporting return to sport outcomes, and identifying valuable prognostic factors for returning to sport.

  • 278. Ardern, Clare L.
    et al.
    Österberg, Annika
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Centrum för klinisk forskning i Sörmland (CKFD).
    Tagesson, Sofi
    Gauffin, Hakan
    Webster, Kate E.
    Kvist, Joanna
    The impact of psychological readiness to return to sport and recreational activities after anterior cruciate ligament reconstruction2014In: British Journal of Sports Medicine, ISSN 0306-3674, E-ISSN 1473-0480, Vol. 48, no 22, p. 1613-U50Article in journal (Refereed)
    Abstract [en]

    Background This cross-sectional study aimed to examine whether appraisal of knee function, psychological and demographic factors were related to returning to the preinjury sport and recreational activity following anterior cruciate ligament (ACL) reconstruction. Method 164 participants completed a questionnaire battery at 1-7 years after primary ACL reconstruction. The battery included questionnaires evaluating knee self-efficacy, health locus of control, psychological readiness to return to sport and recreational activity, and fear of reinjury; and self-reported knee function in sport-specific tasks, knee-related quality of life and satisfaction with knee function. The primary outcome was returning to the preinjury sport or recreational activity. Results At follow-up, 40% (66/164) had returned to their preinjury activity. Those who returned had more positive psychological responses, reported better knee function in sport and recreational activities, perceived a higher knee-related quality of life and were more satisfied with their current knee function. The main reasons for not returning were not trusting the knee (28%), fear of a new injury (24%) and poor knee function (22%). Psychological readiness to return to sport and recreational activity, measured with the ACL-Return to Sport after Injury scale (was most strongly associated with returning to the preinjury activity). Age, sex and preinjury activity level were not related. Conclusions Less than 50% returned to their preinjury sport or recreational activity after ACL reconstruction. Psychological readiness to return to sport and recreation was the factor most strongly associated with returning to the preinjury activity. Including interventions aimed at improving this in postoperative rehabilitation programmes could be warranted to improve the rate of return to sport and recreational activities.

  • 279.
    Arlasjö, Lisa
    Stockholm University of the Arts, Dance Pedagogy Department.
    Stretching: en jämförande studie av dess användning i dansundervisning och aktuell forskning2014Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Whether stretching should be used in conjunction with exercise is a much debated subject. Stretching has in a large part of dance training received a major stronghold. Recent research has shown that some forms of stretching can reduce performance. The purpose of this study is to compare the current research regarding stretching and how stretching is used in dance teaching. Based on the questions:

    - What does the current research say about the effects of static and dynamic stretching?

    - Which approach to stretching does a chosen group of dance pedagogues in Sweden have?

    - What are the similarities and differences regarding stretching in current research and in the chosen group of dance pedagogues?

     

    This is examined by doing a research review of stretching, a questionnaire survey for dance pedagogues and by doing a content analysis of this material, and finally a comparison of those results. Research and dance pedagogues agree about the positive effects of dynamic stretching and disagree when it comes to the effects of static stretching. Research agrees that it is negative for performance, while many dance pedagogues mean it is positive for performance. Just as the research results the dance pedagogues disagree about the effects of stretching. But generally, research do not consider stretching to be needed as much as dance pedagogues do.

  • 280.
    Arlegui, Leigh
    Halmstad University, School of Business, Engineering and Science.
    Changes in Anaerobic Sprint Performance, Perceived Muscle Soreness and Sleep Quality after Wearing Compression Garments during Recovery from a Strength Training Workout2016Independent thesis Advanced level (degree of Master (One Year)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Background: Compression garments are elastic, body-tight pieces of clothing with different pressure gradients used as a recovery method after exercise, such as strength training. Compression garments have increased in popularity within recreational and elite athletes as it is believed that they promote a reduction of muscle soreness and inflammation, which in turn may enhance performance. However, the exact physiological, psychological and performance enhancing effects of compression garments after recovery still remain unknown. Aim: To investigate whether female and male recreational athletes wearing full leg customised compression garments for at least 15 hours following a personalised strength training workout leads to an improvement in anaerobic sprint cycling performance as well as a reduction of perceived muscle soreness. Additionally a sleep quality assessment was conducted to assess the effects of the garments during sleep. Methods: Thirteen male and female subjects took part of a cross-over, randomised, controlled study. Subjects performed the first set of tests including Wingate anaerobic sprint test followed by their personalised strength training workout, after which they recovered with Compression Garments (CGS) or without compression garments (CON). They then returned 24hrs later to perform the second set of tests. Ten days later the same procedure was conducted however the other recovery method was used. Results: No significantdifferences were found between CGS and CON for the Wingate anaerobic test performance. Perceived muscle soreness was lower when subjects wore the garments and they felt better recovered 24hrs post-intervention compared to the CON condition. Some aspects of sleep were affected by wearing the compression garments during sleep however it was unclear whether this had an impact on performance. Conclusion: Recovering with customised full leg compression garments did not promote an improvement of physiological power performance 24 hours after a personalised strength training workout session. However perceived muscle soreness was reduced and the perception of recovery improved. The compression garments caused some sleep disturbances as subjects rated that they were too warm, suggesting a possible drawback of recovering with garments if worn during sleep.

  • 281.
    Armour, Kathleen
    et al.
    School of Sport, Exercise & Rehabilitation Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK.
    Quennerstedt, Mikael
    Örebro University, School of Health and Medical Sciences, Örebro University, Sweden.
    Chambers, Fiona
    Sports Studies and Physical Education, School of Education, University College Cork, Cork, Ireland.
    Makopoulou, Kyriaki
    School of Sport, Exercise & Rehabilitation Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK.
    What is ‘effective’ CPD for contemporary physical education teachers?: A Deweyan framework2017In: Sport, Education and Society, ISSN 1357-3322, E-ISSN 1470-1243, Vol. 22, no 7, p. 799-811Article in journal (Refereed)
    Abstract [en]

    It is widely argued that continuing professional development (CPD) for physical education (PE) teachers is important, yet questions remain about ‘effective’ CPD. We consider these questions afresh from a Deweyan perspective. An overview of the CPD/PE-CPD literature reveals conflicting positions on teachers as learners. Considering the nature of contemporary PE, and the learning needs of teachers, we argue that a different model of PE-CPD is required to reflect the dynamic nature of contemporary practice. We propose John Dewey's classic concept of ‘education as growth’ to underpin a new conceptual framework for the design, delivery and evaluation of PE-CPD. We argue that ‘effective’ PE-CPD will not be found in formal policies, structures and processes, however, well-intentioned, unless it (i) focuses on the dazzling complexity of the learning process, (ii) prioritises context and contemporary challenges; (iii) bridges research/theory–practice in innovative ways; and (iv) nurtures the career-long growth of PE teachers.

  • 282. Armstrong, Neil
    et al.
    Tomkinson, Grant R.
    Ekelund, Ulf
    Örebro University, School of Health and Medical Sciences.
    Aerobic fitness and its relationship to sport, exercise training and habitual physical activity during youth2011In: British Journal of Sports Medicine, ISSN 0306-3674, E-ISSN 1473-0480, Vol. 45, no 11, p. 849-858Article in journal (Refereed)
    Abstract [en]

    Aim To analyse aerobic fitness and its relationship with sport participation, exercise training and habitual physical activity (HPA) during youth. Methods Studies were located through computer searches of Medline, SPORT Discus and personal databases. Systematic reviews of time trends in aerobic fitness/performance, and exercise training and peak oxygen uptake (peak VO(2)) are reported. Results Peak VO(2) increases with age and maturation. Boys' peak VO(2) is higher than girls'. Despite data showing a decrease in performance test estimates of aerobic fitness there is no compelling evidence to suggest that young people have low levels of peak VO(2) or that it is declining over time. The primary time constant of the VO(2) kinetics response to moderate and heavy intensity exercise slows with age and the VO(2) kinetics response to heavy intensity exercise is faster in boys. There is a negative correlation between lactate threshold as a percentage of peak VO(2) and age but differences related to maturation or sex remain to be proven. Young athletes have higher peak VO(2), a faster primary time constant and accumulate less blood lactate at the same relative exercise intensity than their untrained peers. Young people can increase their peak VO(2) through exercise training but a meaningful relationship between aerobic fitness and HPA has not been demonstrated. Conclusions During youth the responses of the components of aerobic fitness vary in relation to age, maturation and sex. Exercise training will enhance aerobic fitness but a relationship between young people's current HPA and aerobic fitness remains to be proven.

  • 283.
    Arndt, Toni
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Laboratory for Biomechanics and Motor Control.
    Barfota eller rejäl stötdämpning – vilka löparskor är bäst?2016In: Idrottsforskning, ISSN 2002-3944, article id 18 majArticle in journal (Other (popular science, discussion, etc.))
    Abstract [sv]

    Kraftig dämpning i våra löparskor skulle minska skadorna. Men att stötarna i nedslaget är ett problem har svagt stöd i forskningen. Är det då bättre att springa i minimalistiska skor eller helt barfota? Vad ska motionären välja?

  • 284.
    Arnelind, Petter
    Örebro University, School of Health Sciences.
    Hälsa ur ett elevperspektiv: Hur gymnasieelever anser att ämnet idrott och hälsa behandlar hälsa2015Independent thesis Advanced level (professional degree), 10 credits / 15 HE creditsStudent thesis
  • 285.
    Arnell, Susann
    et al.
    Faculty of Medicine and Health, University of Health Care Research Center, Örebro University; School of Health Sciences, The Swedish Insititute for Disability Research (SIDR), Örebro University, Örebro Sweden.
    Jerlinder, Kajsa
    University of Gävle, Faculty of Health and Occupational Studies, Department of Health and Caring Sciences, Sports science. School of Health Sciences, The Swedish Institute for Disability Research (SIDR), Örebro University Sweden.
    Lundqvist, Lars-Olov
    Faculty of Medicine and Health, University of Health Care Research Center, Örebro University; School of Health Sciences, The Swedish Insititute for Disability Research (SIDR), Örebro University, Örebro Sweden.
    Perceptions of Physical Acitivty Participation Among Adolescents with Autism Spectrum Disorders: A Conceptual Model of Conditional Participation2018In: Journal of autism and developmental disorders, ISSN 0162-3257, E-ISSN 1573-3432, Vol. 48, no 5, p. 1792-1802, article id 29236210Article in journal (Refereed)
    Abstract [en]

    Adolescents with an autism spectrum disorder (ASD) are less physically active compared to typically developing peers. The reasons for not being physically active are complex and depend on several factors, which have not been comprehensively described from the adolescent’s perspective. Therefore, the aim was to describe how adolescents with an ASD perceive, experience and reflect on their participation in physical activity. Interviews with 24 adolescents diagnosed with high-functioning ASD, aged 12–16 years, were analysed with qualitative content analysis with an inductive approach. They expressed a variety of reasons determining their willingness to participate, which were conceptualized as: Conditional participation in physical activities. The present study presents an alternative perspective on participation in physical activity, with impact on intervention design.

  • 286.
    Arnesson, Carolina
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences.
    Måste jag tävla på idrotten i skolan?2012Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Syfte och frågeställning

    I hur stor utsträckning används tävlingspraktiken i Idrott och Hälsa, och hur påverkar detta ämnets karaktär?

    Jag ska i min undersökning försöka se hur elever i skolan upplever tävlingar under idrotten i skolan. Jag kommer att använda mig av Lars-Magnus Engströms (2002) teori om idrottens praktiker och logiker, vilka redogörs närmare för under punkten Teoretiskt perspektiv. Jag vill finna de känslor och tankar som uppstår då eleverna försätts i den s.k. tävlingspraktiken, där aktiviteten i sig handlar om jämförande. Jag kommer även kort att försöka undersöka hur en pedagog i ämnet ser på tävlande i skolan och om dennes uppfattning om tävlingar stämmer överens med barnens.

    Metod

    Jag har i denna studie valt at göra en kvalitativ undersökning, dvs. att försöka att på djupet se de kvaliteter och benägenheter som framkommer från studien. Tillvägagångssätt för att samla data har varit intervjuer med 8 elever och 1 pedagog och observationer av 10 lektioner i ämnet Idrott och Hälsa.

    Resultat

    Denna studie är relativt liten, därför går det inte att dra några faktiska slutsatser, men av de elever jag intervjuat och vad jag sett på lektionerna får jag uppfattningen att det nog kan vara så att tävlande ändå är omtyckt hos de flesta elever. Merparten svarade på mina frågor att tävling är engagerande och roligt och att aktiviteterna då får mer poäng. Ett fåtal påpekade negativa aspekter av tävling såsom jämförande, stress och press att göra rätt och den oro detta skapar.

    Slutsats

    Det kan nog vara så att tävling gärna kan användas i skolan, men på ett genomtänkt sätt som inte pekar ut någon. Själva jämförande momentet verkar inte vara gynnsamt på något sätt, varken enligt pedagogen eller barnen, så det kan vara detta man måste få bort.

  • 287.
    Arnesson, Jesper
    et al.
    Dalarna University, School of Education, Health and Social Studies, Sport and Health Science.
    Enberg, Anton
    Dalarna University, School of Education, Health and Social Studies, Sport and Health Science.
    Resultatinriktad idrott – ett problem för längdskidsporten: En studie om avhopp inom längdskidåkning2015Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Aim

    The aim of the study is to examine the dropout from cross-country skiing after high school and how elite associations with connection to university, attractive cities and support to elite athletes can prevent it.

    Design

    This study has a qualitative orientation where totally nine persons was interviewed. The study had four different target audiences which where dropouts, coaches from Dala Sports Academy, representatives from Falun and Borlange community and the Swedish ski association. Questions about dropout have been answered by all participants in the study but the questions about elite associations on senior levels were only answered by coaches, representatives of the communities and the Swedish ski association.

    Results

    All participants showed that bad results, interests beside the sport and that the conditions and support gets smaller at senior level was reasons for dropout. The dropouts also showed that lack of motivation was a reason for leaving cross-country skiing. The coaches, communities and the Swedish ski association intended that the enviroment in Falun and Borlange was good for running an elite association on senior level for cross-country skiing. They also provided that the economical part is important for an elite association on senior level.

    Conclusions

    The main reason for dropout in cross-country skiing is when the sport gets to serious and the focus only is on results. This leads to lack of motivation if the athletes don’t get the results they want. Only the best skiers can today participate in elite associations on senior level. To give more athletes an opportunity to train and compete in a high level as a senior the clubs can be more active with sponsorship so the resources expands.

  • 288.
    Aronsson, Linnéa
    et al.
    Örebro University, School of Health Sciences.
    Johansson, Hanna
    Örebro University, School of Health Sciences.
    Fyra veckors bålträning förbättrar inte balansförmågan eller effektutvecklingsförmågan i de nedre extremiteterna2015Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
  • 289.
    Arumugam, Ashokan
    Umeå University, Faculty of Medicine, Department of Community Medicine and Rehabilitation, Physiotherapy.
    Clinical versus radiological findings: A paradox in diagnosing minor hamstring injuries2018In: International Journal of Osteopathic Medicine, ISSN 1746-0689, E-ISSN 1878-0164, Vol. 27, p. 52-56Article in journal (Refereed)
    Abstract [en]

    Hamstring injuries occur commonly in athletes participating in sports that require sprinting/high velocity running, kicking a ball or agility. In the first instance, clinical assessment and management play a pivotal role in managing these injuries. Radiological investigations such as ultrasonography (US) and magnetic resonance imaging (MRI) are also recommended to confirm one or more parameters related to hamstring injury (the location, length, cross-sectional area, volume, edema, hemorrhage, etc.) and predicting return-to-play. However, hamstring injuries that are minor in nature, diagnosed clinically, may not be discernible on conventional US or MRI in some cases. Certain reasons for these paradoxical (clinical vs. radiological) findings may include pain referral to the posterior thigh from lumbosacral dysfunction or sciatic nerve pathoneurodynamics. Conversely, minor hamstring injuries might remain indiscernible within the threshold of conventional MRI sensitivity. To date, there is neither clear consensus on a standardized criteria nor strong evidence for using MRI to prognosticate return-to-play following hamstring injuries. This paper briefly discusses the controversy between contradicting clinical and radiological findings encountered by clinicians in the diagnosis of minor hamstring injuries. If posterior thigh pain appears with clinical signs and symptoms of a minor hamstring injury without pain referral from neighboring structures, but presents with negative findings on US or MRI, the diagnosis remains a challenge. However, such conditions are pragmatically treated as (nonstructural) hamstring injuries unless certain differential diagnoses can be established. 

  • 290.
    Arvidsson, Elin
    et al.
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences.
    Rosenqvist, Andreas
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences.
    Alla vill dansa bugg, eller?: En studie om utvecklingen inom barn-, ungdoms- och juniorbugg2018Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Syfte och frågeställningar

    Studiens syfte var att analysera organisatoriska faktorer till deltagarantalets förändringar i barn-, ungdoms- och junioridrott inom dansen bugg. De frågor som studien avsåg att besvara var följande: ”Vilka bidragande organisatoriska faktorer kan ha påverkat den kraftiga reduceringen av antalet unga tävlingsdansare i bugg?” samt ”Finns förslag, och i så fall vilka, på hur utvecklingen inom deltagarantalet i tävlingsklasserna barn, ungdom och junior i bugg ska kunna förändras?”

    Metod

    Metoden som använts i studien är en semistrukturerad kvalitativ intervjumetod med syftet att undersöka organisationens syn kring buggens utveckling under det senaste decenniet. Utifrån ett bekvämlighets- och målinriktat urval har fem kanslister intervjuats från tre olika nivåer inom buggens organisation. Den insamlade empirin har därefter analyserats för att allsidigt utforska och belysa problemområdet.

    Resultat

    Resultatet visar ett flertal olika organisatoriska faktorer som kan ha påverkat den kraftiga reduceringen av unga tävlingsdansare i bugg. Samtliga respondenter lyfter i sina intervjuer att samhället har en inverkan på antalet medlemmar. Även faktorer som föreningarnas intresse och kunskap kan ha haft en inverkan. Det nya tävlingssystemet ansågs av föreningarna som en bidragande faktor. Det finns en osäkerhet gällande vilken del av organisationen som bär ansvaret över barn- och ungdomsutvecklingen. Det kan vara en faktor till reduceringen i sektionen. Ett flertal förslag lyftes för förändring, bland annat samarbete och gemenskap mellan föreningar. Även utbildning, digitalisering, marknadsföring och förändring av distriktens användningsområde lyftes upp som förslag.

    Slutsats

    Vid analysen av den insamlade empirin framgår ett flertal organisatoriska faktorer till deltagarantalets förändring i barn-, ungdoms- och juniorbugg, vilket upplevs ha bidragit till reduceringen inom dansen. Det finns, i dagsläget, ingen färdig plan för att vända den nedåtgående trenden inom barn-, ungdoms- och juniorsektionerna i bugg. Dock finns ett stort intresse att färdigställa ett hållbart koncept för tidigare nämnda sektioner.

  • 291.
    Arvidsson, Johan
    Karlstad University.
    Hälsa och livsstil- Vad är det?: En kvalitativ studie av verksamma idrottslärares tolkningar av hälsa och livsstil2016Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
  • 292.
    Arvidsson, Linn
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Tränarlänken.
    Träningsplanering och bålstabilitet i konståkning2006Student thesis
  • 293.
    Arvidsson, Linn
    et al.
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Tränarlänken.
    Stenström, Linda
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Tränarlänken.
    Kravanalys för konståkning2005Student thesis
  • 294.
    Arvidsson, Linn
    et al.
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences.
    Stenström, Linda
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences.
    Vägen mot stjärnorna?: En utvärdering av ett internationellt talangutvecklingsprojekt i konståkning2006Independent thesis Basic level (degree of Bachelor), 10 poäng / 15 hpStudent thesis
    Abstract [sv]

    Syfte och frågeställningar

    Vårt syfte var att studera ett internationellt talangutvecklingsprojekt i konståkning och dess betydelse för de svenska deltagarna. Vi har i vår studie utgått från följande frågeställningar:

    - Hur uppfattades ISU-projektet av de aktiva och deras tränare?

    - Vilka likheter respektive skillnader finns mellan de aktivas och tränarnas upplevelser av ISU-projektet?

    - Har ISU-projektet bidragit till resultatmässiga förändringar, i så fall på vilket sätt?

    - Har ISU-projektet bidragit till förändringar i de svenska deltagarnas nuvarande träningsupplägg, i så fall på vilket sätt?

    Metod

    Utifrån syftet och frågeställningarna har vi genomfört en enkätundersökning på elva svenska deltagare i ISU-projektet. För att fånga fler nyanser än vad enkäten bringat genomfördes även djupintervjuer med fyra av de elva respondenterna.

    Resultat

    Resultatet tyder på att ISU-projektet har givit svensk konståkning fått inspiration som fört idrotten framåt. Samtliga deltagare ställer sig mycket positiva till den här formen av talangutvecklingsprojekt. Deltagarna vill dock framhålla att det inte är innehållet i sig som varit mest bidragande till åkarnas framgångar. Samtliga deltagare är påfallande överens om att möjligheten att få träna med andra internationellt duktiga åkare och träna för respekterade och kompetenta tränare har varit avgörande för deras fortsatta karriärer. Projektet har bidragit med energi och inspiration.

    Slutsats

    Svensk konståkning trodde sig inte ha tillräcklig kompetens men vår studie tyder på att det finns stort kunnande hos de svenska tränarna och åkarna. De behöver få komma ut och träna och tävla mer, bli bekräftade och få känna att vägen mot stjärnorna inte alls är så lång…

  • 295.
    Arvidsson, Matilda
    Örebro University, School of Health and Medical Sciences.
    "Vi är ju killar och då måste vi ju idrotta mer":  en kvalitativ studie om maskulinitetskonstruktion i skolämnet idrott och hälsa2009Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
  • 296.
    Asker, Martin
    et al.
    Karolinska Institutet.
    Brooke, Hannah L
    Karolinska Institutet.
    Waldén, Markus
    Linköping University.
    Tranaeus, Ulrika
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences.
    Johansson, Fredrik
    Karolinska Institutet.
    Skillgate, Eva
    Karolinska Institutet.
    Holm, Lena W
    Karolinska Institutet.
    Risk factors for, and prevention of, shoulder injuries in overhead sports: a systematic review with best-evidence synthesis.2018In: British Journal of Sports Medicine, ISSN 0306-3674, E-ISSN 1473-0480, article id bjsports-2017-098254Article, review/survey (Refereed)
    Abstract [en]

    OBJECTIVE: To assess the evidence for risk factors and prevention measures for shoulder injuries in overhead sports.

    DESIGN: Systematic review with best-evidence synthesis.

    DATA SOURCES: Medline (Ovid), PubMed (complementary search), Embase (Elsevier), Cochrane (Wiley), SPORTDiscus (Ebsco) and Web of Science Core Collection (Thomson Reuters), from 1 January 1990 to 15 May 2017.

    ELIGIBILITY CRITERIA FOR SELECTING STUDIES: Randomised controlled trials, cohort studies and case-control studies on risk factors or prevention measures for shoulder injuries in overhead sports. The eligible studies were quality assessed using the Scottish Intercollegiate Guidelines Network criteria.

    RESULTS: Of 4778 studies identified, 38 were eligible for quality review and 17 met the quality criteria to be included in the evidence synthesis. One additional quality study presented a shoulder injury prevention programme. Most studies focused on baseball, lacrosse or volleyball (n=13). The risk factors examined included participation level (competition vs training) (n=10), sex (n=4), biomechanics (n=2) and external workload (n=2). The evidence for all risk factors was limited or conflicting. The effect of the prevention programme within the subgroup of uninjured players at baseline was modest and possibly lacked statistical power.

    CONCLUSIONS: All investigated potential risk factors for shoulder injury in overhead sports had limited evidence, and most were non-modifiable (eg, sex). There is also limited evidence for the effect of shoulder injury prevention measures in overhead sports.

    PROSPERO TRIAL REGISTRATION NUMBER: CRD42015026850.

  • 297.
    Asker, Martin
    et al.
    Karolinska Institute, Sweden; Naprapathogskolan Scandinavian Coll Naprapath Man, Sweden.
    Waldén, Markus
    Linköping University, Department of Medical and Health Sciences, Division of Community Medicine. Linköping University, Faculty of Medicine and Health Sciences. Hässleholm Kristianstad Ystad Hospital, Sweden.
    Kallberg, Henrik
    Karolinska Institute, Sweden; Public Health Agency Sweden, Sweden.
    Holm, Lena W.
    Karolinska Institute, Sweden; University of Toronto, Canada.
    Skillgate, Eva
    Karolinska Institute, Sweden; Naprapathogskolan Scandinavian Coll Naprapath Man, Sweden.
    A prospective cohort study identifying risk factors for shoulder injuries in adolescent elite handball players: the Karolinska Handball Study (KHAST) study protocol2017In: BMC Musculoskeletal Disorders, ISSN 1471-2474, E-ISSN 1471-2474, Vol. 18, article id 485Article in journal (Refereed)
    Abstract [en]

    Background: Handball is a physical contact sport that includes frequent overhead throwing, and this combination leads to a high rate of shoulder injuries. Several factors have been associated with shoulder injuries in overhead athletes, but strong scientific evidence is lacking for most suggested risk factors. We therefore designed the Karolinska Handball Study (KHAST) with the aim to identify risk factors for shoulder injuries in adolescent male and female elite handball players studying at handball-profiled secondary schools in Sweden. Secondary objectives are to investigate whether shoulder function changes during the competition season and whether the physical profile of the players changes during their time in secondary school. Methods: Players aged 15 to 19 years were included during the pre-season period of the 2014-2015 and the 2015-2016 seasons. At inclusion, players signed informed consent and filled in a questionnaire regarding playing position, playing level, previous handball experience, history of shoulder problems and athletic identity. Players also completed a detailed test battery at baseline evaluating the shoulder, neck and trunk. Players were then prospectively monitored weekly during the 2014-2015 and/or 2015-2016 competitive seasons regarding injuries and training/match workload. Results from the annual routine physical tests in the secondary school curriculum including bench press, deep squat, hand grip strength, clean lifts, squat jumps, counter movement jumps, amp;lt;30 m sprints, chins, dips and Coopers test will be collected until the end of the competitive season 2017-2018. The primary outcome is the incidence of shoulder injuries and shoulder problems. The secondary outcome is the prevalence of shoulder injuries and shoulder problems. Discussion: Shoulder problems are frequent among handball players and a reduction of these injuries is therefore warranted. However, in order to introduce appropriate preventive measures, a detailed understanding of the underlying risk factors is needed. Our study has a high potential to identify important risk factors for shoulder injuries in adolescent elite handball players owing to a large study sample, a high response rate, data collection during consecutive seasons, and recording of potential confounding factors.

  • 298.
    Askling, Carl
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Laboratory for Biomechanics and Motor Control.
    Akuta hamstringskador2018In: Idrottsskada: från prevention till säker återgång till idrott / [ed] Eva Rasmussen Barr & Anette Heijne, Studentlitteratur AB, 2018, 1, p. 243-246Chapter in book (Other academic)
    Abstract [sv]

    I detta kapitel avhandlas de två huvudtyperna av hamstringskada, hur hamstringmuskulaturen ska tränas, preventivt samt efter skada, och slutligen tester som underlättar beslutet om när återgång i idrott är lämplig.

  • 299.
    Askling, Carl
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Laboratory for Biomechanics and Motor Control.
    Hamstrings – så hanterar du fotbollens vanligaste skada2016In: Idrottsforskning.se, ISSN 2002-3944, article id 13 juniArticle in journal (Other (popular science, discussion, etc.))
    Abstract [sv]

    Hamstrings är fotbollsspelarens mest skadedrabbade muskelgrupp. Återfallsskador är också ett stort problem. Rehabiliteringstiden kan halveras med rätt övningar. Och Asklings H-test ger vägledning om när det är dags för spel igen.

  • 300.
    Askling, Carl
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Laboratory for Biomechanics and Motor Control.
    Lengthening hamstring exercises - the key to rehabilitation success?2015Conference paper (Refereed)
3456789 251 - 300 of 4628
CiteExportLink to result list
Permanent link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf