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  • 1.
    Aaby, Jacqueline
    et al.
    Linnaeus University, Faculty of Social Sciences, Department of Sport Science.
    Ekblom, Jakob
    Linnaeus University, Faculty of Social Sciences, Department of Sport Science.
    Hur blev det med hälsan?: En kvalitativ studie om elevers syn på hälsa i ämnet Idrott och hälsa i årskurs nio.2013Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Syftet med denna studie är att undersöka vilken uppfattning elever i årskurs nio har om hälsa. Ämnet Idrott och hälsa bedrivs på olika sätt och syftet med studien är även att få en klarare bild över hur eleverna upplever att de arbetar med hälsa i undervisningen. Genom intervjuer vill vi höra elevernas tankar och erfarenheter om hälsa och vad de skulle vilja lära sig mer om. Vi vill även veta vad de tycker är viktigt för att kunna påverka sin framtida hälsa.

  • 2.
    Aasa, Björn
    et al.
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Orthopaedics. Norrlandsklinikens hälsocentral, Umeå, Sweden.
    Berglund, Lars
    Umeå University, Faculty of Medicine, Department of Community Medicine and Rehabilitation, Physiotherapy. Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Orthopaedics.
    Michaelson, Peter
    Luleå Tekniska Universitet, Institutionen för hälsovetenskap, Avdelningen för hälsa och rehabilitering, Fysioterapi.
    Aasa, Ulrika
    Umeå University, Faculty of Medicine, Department of Community Medicine and Rehabilitation, Physiotherapy.
    Individualized low-load motor control exercises and education versus a high-load lifting exercise and education to improve activity, pain intensity, and physical performance in patients with low back pain: a randomized controlled trial2015In: Journal of Orthopaedic and Sports Physical Therapy, ISSN 0190-6011, E-ISSN 1938-1344, Vol. 45, no 2, 77-85 p.Article in journal (Refereed)
    Abstract [en]

    Study Design Randomized controlled trial. Background Low back pain is a common disorder. Patients with low back pain frequently have aberrant and pain-provocative movement patterns that often are addressed with motor control exercises. Objective To compare the effects of low-load motor control (LMC) exercise and those of a high-load lifting (HLL) exercise. Methods Seventy participants with recurrent low back pain, who were diagnosed with nociceptive mechanical pain as their dominating pain pattern, were randomized to either LMC or HLL exercise treatments. Participants were offered 12 treatment sessions over an 8-week period. All participants were also provided with education regarding pain mechanisms. Methods Participants were assessed prior to and following treatment. The primary outcome measures were activity (the Patient-Specific Functional Scale) and average pain intensity over the last 7 days (visual analog scale). The secondary outcome measure was a physical performance test battery that included 1 strength, 3 endurance, and 7 movement control tests for the lumbopelvic region. Results Both interventions resulted in significant within-group improvements in pain intensity, strength, and endurance. The LMC group showed significantly greater improvement on the Patient-Specific Functional Scale (4.2 points) compared with the HLL group (2.5 points) (P<.001). There were no significant between-group differences in pain intensity (P = .505), strength, and 1 of the 3 endurance tests. However, the LMC group showed an increase (from 2.9 to 5.9) on the movement control test subscale, whereas the HLL group showed no change (from 3.9 to 3.1) (P<.001). Conclusion An LMC intervention may result in superior outcomes in activity, movement control, and muscle endurance compared to an HLL intervention, but not in pain intensity, strength, or endurance.

  • 3.
    Aasa, Ulrika
    et al.
    Umeå University, Faculty of Medicine, Department of Community Medicine and Rehabilitation, Physiotherapy.
    Paulin, Johan
    Umeå University, Faculty of Social Sciences, Department of Psychology.
    Madison, Guy
    Umeå University, Faculty of Social Sciences, Department of Psychology.
    Correspondence between physical self-concept and participation in, and fitness change after, bi-weekly body conditioning classes in sedentary women2017In: Journal of Strength and Conditioning Research, ISSN 1064-8011, E-ISSN 1533-4287, Vol. 31, no 2, 451-461 p.Article in journal (Refereed)
    Abstract [en]

    The aims of the study were (1) to investigate the effects of participation in low impact body conditioning classes on physical fitness in sedentary women at different ages and (2) to examine the correspondence between physical self-concept and participation in, and fitness change after, the participation. Ninety-two sedentary women (mean age 44.2 years) participated in 11-weeks of bi-weekly classes that included cardiovascular, strength, core, endurance and mobility exercises, all performed in synchrony with music. Cardiorespiratory fitness, maximal lifting strength, mobility and balance tests were performed pre- and post the exercise period and the short-form Physical Self-Description Questionnaire (PSDQ-S) was completed. Zero-order Spearman correlation analyses showed that women who rated the PSDQ-S dimension Sport competence higher participated in a larger number of sessions (rs=0.24, p=0.040). At post-tests, all participants had increased their balance, the participants aged 20-34 years had increased their lifting strength, and the participants aged 35-65 years had increased their cardiorespiratory fitness and mobility. Most PSDQ-S dimensions did not affect performance change, but the perception of being physically active was related to increased cardiovascular fitness. We conclude that women with a sedentary lifestyle who wish to increase their physical capacity benefit from music exercise and that inquiries about perceived sport competence and physical activity can improve recommendations made by strength and conditioning professionals.

  • 4.
    Abrahamson, Josefin
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences.
    Effekten av hög-intensiv löpning på prestation i två olika enbenshopp: en studie på oskadade kvinnor och kvinnor som genomgått rekonstruktion av främre korsbandet2013Independent thesis Advanced level (degree of Master (One Year)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Most sport injuries including anterior cruciate ligament-injury (ACL) occur at the end of sport events when the person tends to be fatigued. Despite this, the tests commonly used today to assess whether the individual should return to sports are performed in a non-fatigued state.

    Aim: The aim of this study was to compare effects of 25 minutes treadmill running, including 15 minutes at a level of high-intenisty on the performance of two different single-leg hop tests between un-injured women and women who underwent an ACL-reconstruction.

    Method: Eight un-injured women without any ongoing symptoms from either leg, and 6 women who had undergone an ACL-reconstruction, finished the rehabilitation program and returned to their pre-injury level of activity performed tests at two different occasions. The first occasion included technique training for each single-leg hop and a maximal heart rate test (HRmax) on a treadmill. On the second occasion subjects performed the single-leg hop for distance and the cross-over hop before and directly after 25 minutes running, including 15 minutes on a high-intensity level (>RPE 15 and/or >85 % HRmax). Total jump-distance was measured, registered and analysed for 2 approved trials per leg, condition and hop. A leg symmetry index (LSI) was calculated to assess side-to-side-differences.

    Results: The cross-over hop was significantly shorter after running in both groups, whereas no such effect was seen for the single-leg hop for distance. No difference was shown between groups in performed distance, side-to-side difference or LSI-values, before or after running any of the single-leg hops. Subjects in the ACL-group needed significantly more hop-trials on the operated leg compared to the non-operated leg and compared to un-injured subjects to achieve two qualified hops.

    Conclusions: Subjects jumped shorter in the cross-over hop after running. This hop can therefore be regarded as sensitive enough to tell fatigued state from a non-fatigued state in both groups. The fatigue protocol did not induce any side-to-side differences in subjects who had undergone ACL-reconstruction, finished their rehabilitation and returned to their pre-injury activity level. Some insecurity may still have been present in the previously injured leg since ACL-operated subjects needed more hop-trials for the operated leg compared to the non-operated leg or compared to un-injured subjects when fatigue.

  • 5.
    Acson, Dennis
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences.
    Tillsammans får idrotten ett lyft: idrottslärarens och idrottsledarens inställning till samverkan inom Idrottslyftet2011Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Syfte och frågeställningar: Syftet med den här studien var att i ett mångkulturellt område undersöka idrottslärarens och idrottsledarens inställning till samverkan inom Idrottslyftet. Frågeställningar var följande:

    1. Vilka hinder respektive möjligheter upplever idrottsläraren med samverkan?
    2. Vilka hinder respektive möjligheter upplever idrottsledaren med samverkan?

     Metod: Undersökningens underlag bestod av intervjuer vilka har studerats med en kvalitativ metod. Urvalet utgjordes av tre idrottslärare och tre idrottsledare verksamma i mångkulturella områden. Materialet transkriberades och analyserades utifrån ad hoc-metoden.

    Resultat: Idrottslärarna ser samverkan som ett sätt att ge elever möjlighet att komma i kontakt med föreningsidrotten. Svårigheter som idrottslärarna upplevde där brister finns berör ledarbiten.

    Idrottsledarna ser samverkan som en möjlighet att möta och rekrytera barn i deras föreningsverksamhet. De ser samverkan som ett sätt för barnen att komma i kontakt med idrotten. Svårigheter som idrottsledarna nämnde gällde sådant som berör planering och tidsramar.

    Slutsats: Både idrottslärarna och idrottsledarna är generellt positiva till samverkan. Samverkan fyller en funktion och anses ha ett stort värde för de barn som inte har habitus att vara fysiskt aktiva på fritiden och/eller som har svårt att få kontakt med idrottsföreningarna. Samverkan fyller dessutom en funktion hos idrottsföreningar eftersom detta leder till nyrekryteringar i deras verksamhet. Eleverna och idrottsföreningarna vinner alltså på samverkan vilket blir ett lyft för idrotten. Men både idrottslärarna och idrottsledarna anser att det finns brister med systemet. Brister som är kopplade till de tidsramar som tillåts inom samverkan.

  • 6. Adam, Andersson
    Lärarnas syn på friluftsliv i Idrott och Hälsa: En kvantitativ studie om Idrott och Hälsa lärares syn på undervisningen i friluftsliv2017Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Outdoor education is becoming an increasingly larger subject in Swedish schools.  It makes up about a third of the curriculum in Physical education. In this quantitative study, the result shows that physical education teachers believe they have enough material resources to teach in outdoor education. However, this not applies to the students and the material they bring from home. The teachers feel that they have enough knowledge about outdoor education to teach in the subject and most considers that they have an area close to the school there they have opportunity to teach outdoor education. When it comes to how the school and colleagues are working with or against the physical education teachers, the teachers responded that a small majority of the schools work together with success regarding the curriculums in outdoor education. When it comes to how involved their colleagues are in planning and implementing outdoor activates the majority answered that they receive help from their colleagues.  

  • 7.
    Adams, Marc A.
    et al.
    Arizona State University, USA.
    Ding, Ding
    University of Sydney, Australia.
    Sallis, James F.
    University of California, USA.
    Bowles, Heather R.
    National Institutes of Health, USA.
    Ainsworth, Barbara E.
    Arizona State University, USA.
    Bergman, Patrick
    Linnaeus University, Faculty of Social Sciences, Department of Sport Science.
    Bull, Fiona C.
    The University of Western Australia, Australia.
    Carr, Harriette
    Ministry of Health, New Zealand.
    Craig, Cora L.
    School of Public Health, Canada.
    De Bourdeaudhuij, Ilse
    Ghent University, Belgium.
    Fernando Gomez, Luis
    Hagstromer, Maria
    Klasson-Heggebo, Lena
    Inoue, Shigeru
    Lefevre, Johan
    Macfarlane, Duncan J.
    Matsudo, Sandra
    Matsudo, Victor
    McLean, Grant
    Murase, Norio
    Sjostrom, Michael
    Tomten, Heidi
    Volbekiene, Vida
    Bauman, Adrian
    Patterns of neighborhood environment attributes related to physical activity across 11 countries: a latent class analysis2013In: International Journal of Behavioral Nutrition and Physical Activity, ISSN 1479-5868, E-ISSN 1479-5868, Vol. 10, 34Article in journal (Refereed)
    Abstract [en]

    Background: Neighborhood environment studies of physical activity (PA) have been mainly single-country focused. The International Prevalence Study (IPS) presented a rare opportunity to examine neighborhood features across countries. The purpose of this analysis was to: 1) detect international neighborhood typologies based on participants' response patterns to an environment survey and 2) to estimate associations between neighborhood environment patterns and PA. Methods: A Latent Class Analysis (LCA) was conducted on pooled IPS adults (N=11,541) aged 18 to 64 years old (mean=37.5 +/- 12.8 yrs; 55.6% women) from 11 countries including Belgium, Brazil, Canada, Colombia, Hong Kong, Japan, Lithuania, New Zealand, Norway, Sweden, and the U. S. This subset used the Physical Activity Neighborhood Environment Survey (PANES) that briefly assessed 7 attributes within 10-15 minutes walk of participants' residences, including residential density, access to shops/services, recreational facilities, public transit facilities, presence of sidewalks and bike paths, and personal safety. LCA derived meaningful subgroups from participants' response patterns to PANES items, and participants were assigned to neighborhood types. The validated short-form International Physical Activity Questionnaire (IPAQ) measured likelihood of meeting the 150 minutes/week PA guideline. To validate derived classes, meeting the guideline either by walking or total PA was regressed on neighborhood types using a weighted generalized linear regression model, adjusting for gender, age and country. Results: A 5-subgroup solution fitted the dataset and was interpretable. Neighborhood types were labeled, "Overall Activity Supportive (52% of sample)", "High Walkable and Unsafe with Few Recreation Facilities (16%)", "Safe with Active Transport Facilities (12%)", "Transit and Shops Dense with Few Amenities (15%)", and "Safe but Activity Unsupportive (5%)". Country representation differed by type (e. g., U. S. disproportionally represented "Safe but Activity Unsupportive"). Compared to the Safe but Activity Unsupportive, two types showed greater odds of meeting PA guideline for walking outcome (High Walkable and Unsafe with Few Recreation Facilities, OR=2.26 (95% CI 1.18-4.31); Overall Activity Supportive, OR=1.90 (95% CI 1.13-3.21). Significant but smaller odds ratios were also found for total PA. Conclusions: Meaningful neighborhood patterns generalized across countries and explained practical differences in PA. These observational results support WHO/UN recommendations for programs and policies targeted to improve features of the neighborhood environment for PA.

  • 8. Adlard, Kirsten N.
    et al.
    Bolam, Kate
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Åstrand Laboratory of Work Physiology.
    Jenkins, David G.
    Skinner, Tina L.
    The influence of exercise intensity on fatigue in adults: a systematic review2016In: Research to Practice 2016: Conference Proceedings, Exercise & Sports Science Australia , 2016, 173- p.Conference paper (Other academic)
  • 9.
    Adler, Daniel
    Mid Sweden University, Faculty of Human Sciences, Department of Health Sciences.
    Analys av gjorda och insläppta mål över matchtid i herrallsvenskan i fotboll2011Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Den ultimata indikatorn på ett fotbollslags prestation är matchresultatet som beror på balansen av gjorda och insläppta mål. Syftet med studien var att analysera de allsvenska herrlagens målproduktion under säsongen 2010. Detta för att undersöka de svenska elitlagens förekomst av gjorda och insläppta mål över matchtid. Ytterligare syfte var att undersöka om framgångsrika och mindre framgångsrika lag uppvisar olika mönster gällande dessa parametrar. Samtliga 240 matcher, totalt 600 mål, från säsongen 2010 studerades på förekomst av mål över matchtid. Målen kategoriserades lagvis i åtta stycken tidsperioder. Lagen delades även in i tre olika grupper beroende på tabellplacering. Resultaten baserat på samtliga lag visade signifikant större andel gjorda mål under den andra halvleken jämfört med den första, 55,2% mot 44,8% (p<0,05). Inga signifikanta skillnader mellan 15-minutersperioderna kunde ses. Däremot sågs signifikanta skillnader mellan 15-minutersperioderna inom de olika grupperna. Topplagen uppvisade signifikant större andel insläppta mål under period 76-90min jämfört med 31-45min, 46-60min och 61-75min (p<0,05). Mittenlagen uppvisade signifikant mindre andel insläppta mål under period 76-90min jämfört med 31-45min, 46-60min och 61-75min (p<0,05). Sammanfattningsvis, svenska herr-elitlag följde en ökande trend av gjorda mål över matchtid med större andel mål under andra halvleken jämfört med första. Resultaten antydde även att topplagen uppvisade hög resultatmässig prestation genom hela matcherna medan bottenlagen uppvisade låg prestation och mittenlagen varierande prestation, vilket delvis förklarar varför grupperna placerar sig i toppen, botten och mitten av tabellen.

  • 10.
    Adler Henerud, David
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Tränarlänken.
    En kravanalys i golf2005Student thesis
  • 11.
    Adler-Henerud, David
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences.
    Svingrotationstyrka och svinghastighet hos golfspelare2006Independent thesis Basic level (degree of Bachelor), 10 poäng / 15 hpStudent thesis
  • 12.
    Adolfsson, Adam
    Örebro University, School of Health Sciences.
    Ideellt engagemang: En studie om motivationen bakom det ideella engagemanget inom idrotten2016Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
  • 13.
    Adolfsson, Jonas
    Dalarna University, School of Education, Health and Social Studies, Sport and Health Science.
    Vad kännetecknar en bra idrotts- och träningsmiljö för elitsatsande inom längdskidåkning2015Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Syfte

    Syftet var att ta reda på vad elitaktiva inom längdskidor anser vara en bra idrotts- och träningsmiljö.

    Metod

    Metoden som används är uppdelad i två olika ansatser. Den första ansatsen är inom den kvantitativa forskningen och utformades som en enkätstudie, där längdskidåkare har fått svara på frågor om sin träningsmiljö. Den andra delen av uppsatsen är utformad som en kvalitativ studie med semistrukturerade intervjufrågor baserat på ett mindre urval av de som svarat på enkäten. Detta skedde efter att resultatet av den kvantitativa studien blivit analyserat, för att utforma en intervjumall från enkätsvaren, i syfte att försöka få en djupare förståelse av detta problemområde.

    Resultat

    Resultatet visar att det finns en stor komplexitet i uppfattningen om vad som anses vara en bra träningsmiljö för längdskidåkare. Dock kan det urskiljas att vissa faktorer som viktigare än andra, till exempel vikten av att ha träningskamrater och god sparring för att kunna utvecklas. Värdet av att ha en tränare ansågs också viktigt. Resultaten visar även hur den elitaktive upplever sin träningsmiljö i dag och vad som efterfrågas.

    Slutsatser

    Det framkom tydligt att bristen på hjälp upplevs stor bland seniorer inom längdskidor. Att steget mellan junior och eventuellt gå på ett skidgymnasium, till att bli senior upplevs alldeles för stort, att det inte finns tillräcklig stödfunktioner, skolor eller träningsgrupper att tillgå som senior.

  • 14.
    Adolfsson, Peter
    et al.
    Institute of Clinical Sciences, The Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden; Endocrine and Diabetes Center, The hospital of Halland Kungsbacka, Kungsbacka, Sweden.
    Mattsson, Stig
    Faculty of Health Sciences and Medicine, Örebro University Hospital, Örebro, Sweden; Endocrine and Diabetes Center, Falun Hospital, Falun, Sweden.
    Jendle, Johan
    Faculty of Health Sciences and Medicine, Örebro University Hospital, Örebro, Sweden; Endocrine and Diabetes Center, Karlstad Hospital, Karlstad, Sweden.
    Evaluation of glucose control when a new strategy of increased carbohydrate supply is implemented during prolonged physical exercise in type 1 diabetes2015In: European Journal of Applied Physiology, ISSN 1439-6319, E-ISSN 1439-6327, Vol. 115, no 12, 2599-2607 p.Article in journal (Refereed)
    Abstract [en]

    Purpose: In healthy individuals, high carbohydrate intake is recommended during prolonged exercise for maximum performance. In type 1 diabetes (T1D), this would alter the insulin requirements. The aim of the study was to evaluate the safety of high glucose supplementation during prolonged exercise and the glucose control when a novel strategy of increased carbohydrate supply was implemented during prolonged exercise in T1D.

    Methods: Eight subjects with T1D participated in a sports camp including sessions of prolonged exercise and individualized feedback during three consecutive days. This was later followed by a 90 km cross-country skiing race. Large amounts of carbohydrates, 75 g/h, were supplied during exercise and the insulin requirements were registered. Glucose was measured before, during and after exercise aiming at euglycaemia, 4-8 mmol/L (72-144 mg/dL). During the race, continuous glucose monitoring (CGM) was used as an aspect of safety and to allow direct and individual adjustments.

    Results: Compared to ordinary carbohydrate supply during exercise, the high carbohydrate supplementation resulted in significantly increased insulin doses to maintain euglycaemia. During the cross-country skiing race, the participants succeeded to reach mean target glucose levels; 6.5 ± 1.9 mmol/L (117 ± 34 mg/dL) and 5.7 ± 1.5 mmol/L (103 ± 27 mg/dL) at the start and finish of the race, respectively. Episodes of documented hypoglycemia (<4 mmol/L/72 mg/dL) were rare. CGM was used for adjustments.

    Conclusion: In this study, large carbohydrate supplementation in T1D individuals during prolonged aerobic exercise is safe and allows the subjects to maintain glycaemic control and indicates the feasibility of CGM under these conditions.

  • 15. Adolfsson, Peter
    et al.
    Roos, Harald
    Lunds universitet.
    Östenberg, Anna
    Lunds universitet.
    Speciella aspekter på damfotboll1998In: Fotbollsmedicin, Solna: Svenska fotbollförbundet , 1998, 1, 435-450 p.Chapter in book (Other academic)
  • 16. Afrasiabi, Soran
    Kroppsideal i skolan2015Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
  • 17.
    Agnerling, Emma
    Mid Sweden University, Faculty of Human Sciences, Department of Health Sciences.
    Kombinationen av bikarbonat- och koffeinsupplementering förbättrar löpprestation i ett Beep-test2016Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
  • 18.
    Ahlberg, Annika
    Karlstad University, Faculty of Social and Life Sciences.
    Att utveckla elevers psykiska förmåga: Mental träning i ämnet idrott och hälsa2008Independent thesis Basic level (professional degree), 10 points / 15 hpStudent thesis
    Abstract [en]

    The purpose of this thesis was to find out how teachers can develop the psychological ability of their pupils within the subject of physical education. To find an answer to this, two researchers were interviewed in a qualitative way and four teachers in physical education were interviewed structurally. Current literature was also red. I tried to answer if there are any differences, or similarities, between two scientists’ and four teachers’ in physical education perspectives regarding methods to develop pupils’ psychological ability. The thesis also tries to answer which practical exercises in mental training that could be used in the teaching of physical education and how teachers in physical education can use mental training to motivate the pupils to strive for high grades.

    This study shows that the pupils’ psychological ability can be developed through different mental exercises. To develop the pupils’ self-confidence by giving theme suitable exercises with a degree of difficulty that are on a slightly higher level than what the pupils think they can manage is one way. A similarity between the opinions of the scientists and the teachers in physical education is the importance of good communication with the pupils. Further, the two scientists emphasized the importance of making the pupils involved in the planning and contents of the lessons. The teachers in physical education did not share this opinion.

    To develop the pupils’ self-knowledge and make theme strive for a grade, reasonable for their personal abilities, may increase motivation. In my thesis I have realised that a teacher’s behaviour is also important. The teacher needs to have a sensitive ear, use constructive feedback to the pupils and, to a reasonable extent, get the pupils involved in the planning and the contents of the lessons.

  • 19.
    Ahlbom, Per
    et al.
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences.
    Gaimer, Mårten
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences.
    Vi i femman: en studie av ett samarbetsförsök inom norrköpingsfotbollen där kluster används som modell2006Independent thesis Basic level (degree of Bachelor), 10 poäng / 15 hpStudent thesis
    Abstract [sv]

    Syfte och frågeställningar

    Syftet med studien var att analysera samarbetsförsöket inom norrköpingsfotbollen och att ta fram en handlingsplan för det framtida samarbetet. Denna plan ska konkretisera hur ett samarbete mellan IFK Norrköping, Smedby AIS, Eneby BK, Lindö FF samt Åby IF ska utvecklas. De frågeställningar vi har utgått ifrån är: Varför har de kommit fram till att ett samarbete med lokala föreningar främjar norrköpingsfotbollen? Vad kan respektive part erbjuda i samarbetet? Hur ska samarbetet utvecklas för att samtliga inblandade ska få ut så mycket som möjligt av det?

    Metod

    Studien byggde på sex kvalitativa intervjuer. Respondenterna vi valt att intervjua är betydelsefulla representanter från samarbetsföreningarna. Alla föreningar är representerade i studien. Vi har utgått från samma intervjumall vid varje intervjutillfälle. Inför varje intervju har respondenterna fått ta del av våra frågeställningar.

    Resultat och handlingsplan

    Vi har i denna studie kommit fram till att samarbetsföreningarna anser att en bättre kommunikation och samarbete skulle gynna utvecklingen av ”fotbollsnorrköping”. IFK Norrköping har initierat samarbetet. De övriga föreningarna anser att samarbetet med just IFK Norrköping är inspirerande för sin egen ungdomsverksamhet. De har också förhoppningen att detta samarbete eventuellt kan bidra till en mer strukturerad talangutveckling vilket på sikt kan bidra till ett bättre ”fotbollsnorrköping” där ambitionen är att IFK Norrköping ska spela i Allsvenskan med fler regionalt och lokalt utbildade fotbollsspelare.

    Vi har använt en klustermodell applicerad på näringslivet som vi har modifierat för att den ska vara möjlig att använda för att analysera samarbetet mellan IFK Norrköping, Eneby BK, Smedby AIS, Lindö FF och Åby IF. Modellen förklarar hur samarbetet kan vara i ständig utveckling samt vilka fallgroper och risker som finns med den här typen av samarbete. Utifrån modellen har vi kommit fram till en handlingsplan med konkreta förslag på vad som kan göras för att ta samarbetet till nästa steg. Handlingsplanens syfte är ge förslag på aktiviteter som säkerställer samarbetets utveckling i den närmsta framtiden samt hur föreningarna kan gå tillväga för att förankra samarbetet i respektive förening.

  • 20.
    Ahlfors, Mikael
    et al.
    Karlstad University, Faculty of Social and Life Sciences.
    Byström, Dan
    Karlstad University, Faculty of Social and Life Sciences.
    Hur satsar arbetsgivaren på hälsofrämjande åtgärder och hur uppfattas i så fall dessa av personalen?2008Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
  • 21.
    Ahmadi, Nader
    et al.
    University of Gävle, Faculty of Health and Occupational Studies, Department of Social Work and Psychology.
    Ljungqvist, ArneSvedsäter, GöranUniversity of Gävle, Faculty of Health and Occupational Studies, Department of Health and Caring Sciences.
    Doping and public health2016Collection (editor) (Other academic)
    Abstract [en]

    Doping – the use of performance-enhancing substances and methods – has long been a high-profile issue in sport but in recent years it has also become an issue in wider society. This important new book examines doping as a public health issue, drawing on a multi-disciplinary set of perspectives to explore the prevalence, significance and consequences of doping in wider society. It introduces the epidemiology of doping, examines the historical context, and explores the social, behavioural, legal, ethical and political aspects of doping. The book also discusses possible interventions for addressing the problem on organisational and societal levels.

  • 22.
    Ahmadi, Nader
    et al.
    University of Gävle, Faculty of Health and Occupational Studies, Department of Social Work and Psychology.
    Ljungqvist, Arne
    Svedsäter, Göran
    University of Gävle, Faculty of Health and Occupational Studies, Department of Health and Caring Sciences.
    Introduction: Doping and Public Health2016In: Doping and Public Health / [ed] Nader Ahmadi, Arne Ljungqvist, Göran Svedsäter, Abingdon: Routledge, 2016, 1, , 151 p.1-10 p.Chapter in book (Other academic)
  • 23.
    Ahmadi, Nader
    et al.
    University of Gävle, Faculty of Health and Occupational Studies, Department of Social Work and Psychology.
    Svedsäter, Göran
    University of Gävle, Faculty of Health and Occupational Studies, Department of Health and Caring Sciences.
    "The winner takes it all": Individualization and Performance-Enhancing Drugs and Methods in Sport and in Society2016In: Doping and Public Health / [ed] Nader Ahmadi, Arne Ljungqvist, Göran Svedsäter, Abingdon: Routledge, 2016, 1, , 151 p.38-48 p.Chapter in book (Other academic)
    Abstract [en]

    A common misconception in today's society is that everything is (or should be) rational and goal-oriented, which we summarized earlier as pragmatic rationalism. We call this pragmatic rationalism a misconception because it misses a historical fact that individuals' actions are and have never been governed entirely by rational motives. Emotional, ethical and existential considerations influence human actions extensively. Solidarity, willingness to share and even self-sacrifice and prioritizing the good of others before one's own are values that have survived many different economic cultures. Even today's extremely individualized society with its focus on reaching success and winning at any price cannot completely suppress these values. There is an inherent contradiction between the crude egoism of modern individualism and its historical development that largely has its origin in the care of humans.

  • 24.
    Ahnesjö, Jonas
    et al.
    Linnaeus University, Faculty of Social Sciences, Department of Sport Science.
    Bergman, Patrick
    Linnaeus University, Faculty of Social Sciences, Department of Sport Science.
    Effects on white blood cells in senior citizens during post exercise recovery in three different environments (indoors, simulated outdoors and outdoors)2016Conference paper (Refereed)
    Abstract [en]

    Introduction

    Natural environments are known to promote health and may also provide extraordinary conditions for post exercise recovery (Kuo 2015). In the project Health Effects of Recreation Outdoors (HERO) we explore the hypothesis that post exercise recovery in natural environments may be reflected in white blood cell counts (WBC). In our study 50 seniors (age >65 years) performed moderate physical activity (20 min) followed by passive recovery (2h) in three different environments (indoors, simulated outdoors and “true” outdoors).

    Method

    The experimental setup was a randomized cross-over design, thus all test persons did all treatments in a randomized order. We sampled white blood cells (WBC-diff), which were used to detect and quantify inflammatory response.

    Results

    Our early findings provide some support for the hypothesis that environment may impose differences in recovery effectiveness. White blood cell count (WBC-diff) appears to differ between the treatments and there is a significant interaction between sampling time and recovery environment in the monocytes, suggesting that the monocyte numbers differ, not only between sampling times but also between environments. In addition, WBC also show that some of the test persons develop leukocytosis during exercise and that white blood cell levels decrease rapidly immediately post exercise to levels significantly lower than base line values.

    Discussion

    Our results suggest that moderate physical activity in senior citizens may result in acute leukocytosis (see e.g. Sand et. al. 2013) and that recovery effectiveness (e.g in monocyte response) may be dependent upon environmental factors. The clinical importance of our results are not fully understood but there has been suggested an “open window” immediately post exercise in which infection risk may be elevated (Pedersen & Toft 2000) and it is possible that recovery out of doors may reduce this risk.

    References

    Sand, K., L, Flatebo, K., Andersen, M., B., Maghazachi, A., A. (2013) World J Exp Med 20; 3(1): 11-20

    Pedersen, B., K. & Toft, A., D. (2000) Br J Sports Med 34:246–251

    Kuo, M. (2015) Frontiers in Psychology 6:1-8

  • 25.
    Ahnesjö, Jonas
    et al.
    Linnaeus University, Faculty of Social Sciences, Department of Sport Science.
    Danielsson, Tom
    Linnaeus University, Faculty of Social Sciences, Department of Sport Science.
    Recreational fishing in an educational intervention context promotes awareness and knowledge about nature in schoolchildren2013Conference paper (Other academic)
    Abstract [en]

    Outdoor activities may be intuitively associated with interest for nature and environmental concern. However, most scientific studies suggest that no such correlation exists. In this quantitative study we have used a questionnaire and explored the hypothesis that a one day educational intervention may be a successful tool in increasing environmental awareness, interest for nature and interest for recreational fishing. We present evidence suggesting that educational interventions in which young people are exposed to natural environments in a recreational fishing context have positive effects on interest for nature and recreational fishing, knowledge about nature and environmental awareness. Our findings also reveal that frequency of nature visits does not correlate with self estimated interest for nature.  We also show that the observed effects of the educational intervention “Klassdraget” appear to be larger for the girls which are, by tradition, less interested in recreational fishing as compared to boys.

  • 26.
    Ahnström, Johanna
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences.
    Hur homo(gen) är idrotten egentligen?: En kvalitativ intervjustudie om en lesbisk kvinnas situation inom svensk elitidrott2007Independent thesis Basic level (degree of Bachelor), 10 poäng / 15 hpStudent thesis
    Abstract [en]

    Aim

    The purpose of this study is trying to understand and problemize how a homosexual top-level sports women experiences her situation in Swedish sports movement. Consequently I want to acquire a greater insight in another person’s world.

    Method

    The empirical material consists of one qualitative research interview. A female coach in top-level sports got to know my need for a person with appropriate knowledge, experiences and with a great extent of awareness and with the will to open up and talk. She let colleagues of her know of my wish and with a so-called “snowball-selection” I got hold of a suitable interviewee. The interview was characterized, as far as possible, with a great deal of freedom for the interviewee to conduct the conversation. This was made through a low grade of standardized questions and with a deliberate attempt from my side to guide her towards the areas of which I had the ambition to gain knowledge. A recorder was used during the interview. The interview was printed out, the text was interpreted and analysed, taking three different interpretation-perspectives as a starting point: the realistic, the deconstructive and the critical.

    Result / Conclusion

    Sports are, and have been, of great importance for my interviewee. Sports have been her way of surviving. The high spirit within her sport, besides the secure environment it represents, my interviewee has been given a great deal of joy and unforgettable memories. She finds her situation in her team: “very special”. Nevertheless she questions the unfair conditions between the female- and the male teammates, concerning economics, commitment and acceptance. My interviewee sees this situation, significantly, due to the male dominance in the committee and sponsor group and their lack of interest in the female team. The sports context, in which we find her at present, has given her the strength to withstand the heterosexual norm. This norm has with its demand for heterosexuality as the natural and normal sexuality affected her negatively, exposed her to low acceptance, negative attitudes and silence from the environment. Today we find my interviewee in a “bubble”. This “bubble” is full of high spirit, acceptance and joy and has given her the power to be open with her sexuality. Outside of the “bubble” she is constantly surrounded by demands for heterosexuality and homophobic attitudes that clearly marks the sports ground. Her contradictions in her statements certainly show how affected she is by the homophobia. Affected in that way that she in many cases adapts a negative and homophobic attitude to herself and homosexuality.

  • 27.
    Ahsani Ghahreman, Sarang
    Linköping University, Department of Social and Welfare Studies.
    En del av spelet: En studie av fotbollsdomarnas tillvaro i Gästrikland2008Independent thesis Advanced level (degree of Master (One Year)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    There is a clear difference between the way football players and leaders regard the role of the referee, compared to the way the refereeing body looks at it. The refereeing body regard themselves as fundamental for the existence of the sport, while the other mentioned parties merely see them as functional justice makers. This view places the referees outside the field of football. This establishes a football culture, which is conflicted when it comes to the role of the referees on the field. The conflict comes to its edge in youth football, where the referees are under severe pressure. The only way for the referees to handle this pressure is through experience and respect, which is essential for creation of a well working referring role. Thus, a change in the football culture is necessary in order to include the referees in the football family and change the general conception of the referees’ role and function.

  • 28.
    Ainegren, Mats
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering and Sustainable Development.
    Roller skis' rolling resistance and grip characteristics: influences on physiological and performance measures in cross-country skiers2012Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    The aim of this thesis was to investigate roller ski characteristics; classical and freestyle roller skis’ rolling resistance coefficients (μR) and classical style roller skis’ static friction coefficients (μS), and to study the influence of different μR and μS on cross-country skiers’ performance and both physiological and biomechanical indices. The aim was also to study differences in skiing economy and efficiency between recreational skiers, female and male junior and senior elite cross-country skiers.The experiments showed that during a time period of 30 minutes of rolling on a treadmill (warm-up), μR decreased significantly (p<0.05) to about 60-65 % and 70-75 % of its initial value for freestyle and classical roller skis respectively. Also, there was a significant influence of normal force on μR, while different velocities and inclinations of the treadmill only resulted in small changes in μR.The study of the influence on physiological variables of a ~50 % change in μR showed that during submaximal steady rate exercise, external power, oxygen uptake, heart rate and blood lactate were significantly changed, while there were non-significant or only small changes to cycle rate, cycle length and ratings of perceived exertion. Incremental maximal tests showed that time to exhaustion was significantly changed and this occurred without a change in maximal power, maximal oxygen uptake, maximal heart rate and blood lactate, and that the influence on ratings of perceived exertion was non-significant or small.The study of classical style roller skis μS showed values that were five to eight times more than the values of μS reported from on-snow skiing with grip-waxed cross-country skis.The subsequent physiological and biomechanical experiments with different μS showed a significantly lower skiing economy (~14 % higher v̇O2), higher heart rate, lower propulsive forces coming from the legs and shorter time to exhaustion (~30 %) when using a different type of roller ski with a μS similar to on-snow skiing, while there was no difference between tests when using different pairs of roller skis with a (similar) higher μS.The part of the thesis which focused on skiing economy and efficiency as a function of skill, age and gender, showed that the elite cross-country skiers had better skiing economy and higher gross efficiency (5-18 %) compared with the recreational skiers, and the senior elite had better economy and higher efficiency (4-5 %) than their junior counterparts, while no differences could be found between the genders.

  • 29.
    Ainegren, Mats
    et al.
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering and Sustainable Development.
    Ainegren, Mats
    Mid Sweden University, Faculty of Human Sciences, Department of Health Sciences.
    The rolling resistances of roller skis and their effects on human performance during treadmill roller skiing2010Licentiate thesis, comprehensive summary (Other academic)
    Abstract [en]

    Modern ski-treadmills allow cross-country skiers, biathletes and ski-orienteers to test their physical performance in a laboratory environment using classical and freestyle techniques on roller skis. For elite athletes the differences in performance between test occasions are quite small, thus emphasising the importance of knowing the roller skis’ rolling resistance coefficient, µR, in order to allow correct comparisons between the results, as well as providing the opportunity to study work economy between different athletes, test occasions and core techniques.

    Thus, one of the aims of this thesis was to evaluate how roller skis’ µR is related to warm-up, mass, velocity and inclination of the treadmill. It was also necessary to investigate the methodological variability of the rolling resistance measurement system, RRMS, specially produced for the experiments, with a reproducibility study in order to indicate the validity and reliability of the results.

    The aim was also to study physiological responses to different µR during roller skiing with freestyle and classical roller skis and techniques on the treadmill as a case in which all measurements were carried out in stationary and comparable conditions.

    Finally, the aim was also to investigate the work economy of amateurs and female and male junior and senior cross-country skiers during treadmill roller skiing, i.e. as a function of skill, age and gender, including whether differences in body mass causes significant differences in external power per kg due to differences in the roller skis’ µR.

    The experiments showed that during a warm-up period of 30 minutes, µR decreased to about 60-65% and 70-75% of its initial value for freestyle and classical roller skis respectively. For another 30 minutes of rolling no significant change was found. Simultaneous measurements of roller ski temperature and mR showed that stabilized mR corresponds to a certain running temperature for a given normal force on the roller ski. The study of the influence on mR of normal force, velocity and inclination produced a significant influence of normal force on mR, while different velocities and inclinations of the treadmill only resulted in small changes in mR. The reproducibility study of the RRMS showed no significant differences between paired measurements with either classical or the freestyle roller skis.

    The study of the effects on physiological variables of ~50% change in µR,showed that during submaximal steady state exercise, external power, oxygen uptake, heart rate and blood lactate were significantly changed, while there were non significant or only small changes to cycle rate, cycle length and ratings of perceived exertion. Incremental maximal tests showed that time to exhaustion was significantly changed and this occurred without a significantly changed maximal power, maximal oxygen uptake, maximal heart rate and blood lactate, and that the influence on ratings of perceived exertion was non significant or small.

    The final part of the thesis, which focused on work economy, found no significant difference between the four groups of elite competitors, i.e. between the two genders and between the junior and senior elite athletes. It was only the male amateurs who significantly differed among the five studied groups. The study also showed that the external power per kg was significantly different between the two genders due to differences in body mass and mR, i.e. the lighter female testing groups were roller skiing with a relatively heavier rolling resistance coefficient compared to the heavier testing groups of male participants.

  • 30.
    Ainegren, Mats
    et al.
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering and Sustainable Development.
    Ainegren, Mats
    Mid Sweden University, Faculty of Human Sciences, Department of Health Sciences.
    Carlsson, Peter
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering and Sustainable Development.
    Tinnsten, Mats
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering and Sustainable Development.
    Rolling resistance for treadmill roller skiing2008In: Sports Engineering, ISSN 1369-7072, E-ISSN 1460-2687, Vol. 11, no 1, 23-29 p.Article in journal (Refereed)
    Abstract [en]

    Modern treadmills allow cross-country skiers, biathletes and ski-orienteers to test their physical performance under laboratory conditions using classical and freestyle techniques on roller skis. The differences in performance between tests are quite small for elite athletes, and it is therefore of great importance to control the rolling resistance of the roller skis. Otherwise different physiological tests cannot be accurately compared.

    This study shows that during a warm-up period of  30 minutes the coefficient of rolling resistance (µR) decreases to about 60-65% and 70-75% of its initial value for freestyle and classical roller skis respectively.

    Simultaneous measurements of temperature and µR shows that stabilized rolling resistance corresponds to a certain running temperature for a given normal force on the roller ski.

    Tests were also performed on the influence on µR of normal force, velocity and inclination. Normal forces produced significant influence on µR , while different velocities and inclinations of the treadmill only resulted in small changes in µR.

  • 31.
    Ainegren, Mats
    et al.
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering and Sustainable Development.
    Ainegren, Mats
    Mid Sweden University, Faculty of Human Sciences, Department of Health Sciences.
    Carlsson, Peter
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering and Sustainable Development.
    Tinnsten, Mats
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering and Sustainable Development.
    Roller ski rolling resistance and its effects on elite athletes’ performance2009In: Sports Engineering, ISSN 1369-7072, E-ISSN 1460-2687, Vol. 11, no 3, 143-157 p.Article in journal (Refereed)
    Abstract [en]

    Modern ski-treadmills allow cross-country skiers, biathletes and ski-orienteers to test their physical fitness in a laboratory environment whilst performing classical and freestyle (skating) techniques on roller skis. For elite athletes, the differences in performance between test occasions are quite small, thus emphasising the importance of knowing the roller skis’ rolling resistance in order to allow the correct comparison between the results of different test occasions. In this study, the roller skis’ rolling resistance was measured on the ski-treadmill’s surface using a roller ski rolling resistance measurement system specially produced for this purpose. The study investigated the influence of significant changes in rolling resistance on physiological variables. The results showed that during submaximal exercise, power, oxygen uptake, heart rate and blood lactate were significantly changed by different rolling resistances, while there were no significant or only small changes to cycle rate, cycle length and ratings of perceived exertion. Incremental maximal tests showed that time to exhaustion was significantly changed by different rolling resistances and this occurred without significant changes in maximal power, maximal oxygen uptake, maximal heart rate and blood lactate, and that the influence on ratings of perceived exertion were insignificant or small.

     

  • 32.
    Ainegren, Mats
    et al.
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering and Sustainable Development.
    Ainegren, Mats
    Mid Sweden University, Faculty of Human Sciences, Department of Health Sciences.
    Carlsson, Peter
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering and Sustainable Development.
    Tinnsten, Mats
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering and Sustainable Development.
    Roller ski rolling resistance and its effects on elite athletes’ performance2008In: ENGINEERING OF SPORT 7, VOL 2, 2008, Vol. 11, no 3, 393-400 p.Conference paper (Refereed)
    Abstract [en]

    Modern ski-treadmills allow cross-country skiers, biathletes and ski-orienteers to test their physical fitness in a laboratory environment whilst performing classical and freestyle (skating) techniques on roller skis. For elite athletes the differences in performance between test occasions are quite small, thus emphasising the importance of knowing the roller skis’ rolling resistance in order to allow the correct comparison between the results of different test occasions. In this study the roller skis’ rolling resistance has been measured using equipment on the ski-treadmill. The study investigates the influence of significant changes in rolling resistance on physiological variables. The results show that during submaximal exercise, heart rate, blood lactate, power and oxygen uptake are significantly changed by different rolling resistances, while there are no significant or only small changes to cycle rate, cycle length and ratings of perceived exertion. Incremental maximal tests show that time to exhaustion is significantly changed by different rolling resistances and this occurred without significant changes in maximal oxygen uptake and heart rate, and the influence on maximal power and ratings of perceived exertion were insignificant or small.

  • 33.
    Ainegren, Mats
    et al.
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering and Sustainable Development.
    Ainegren, Mats
    Mid Sweden University, Faculty of Human Sciences, Department of Health Sciences.
    Carlsson, Peter
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering and Sustainable Development.
    Tinnsten, Mats
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering and Sustainable Development.
    Laaksonen, Marko
    Mid Sweden University, Faculty of Human Sciences, Department of Health Sciences.
    Work economy of amateur and elite cross-country skiers during treadmill roller skiing2009In: 4th Asia Pacific Congress on Sports Technology, APCST2009, 2009Conference paper (Refereed)
    Abstract [en]

    This study focused on the work economy of cross-country skiers during treadmill roller skiing in the perspectives; skill, age and gender. The study was investigating the external power output from elevating the transported mass against gravity and overcoming the roller skis rolling resistance, and the internal power from measured oxygen uptake and energy consumption. The roller skis rolling resistance was measured with a fixture on the ski-treadmill and the results showed a significant correlation between normal force and rolling resistance. The results also showed that it was only the amateur skiers who significantly differed in work economy among the five studied groups.

  • 34.
    Ainegren, Mats
    et al.
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Technology and Management, Mechanical Engineering and Mathematics.
    Carlsson, Peter
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Technology and Management, Mechanical Engineering and Mathematics.
    Laaksonen, Marko S.
    Mid Sweden University, Faculty of Human Sciences, Department of Health Sciences.
    Tinnsten, Mats
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Technology and Management, Mechanical Engineering and Mathematics.
    The influence of grip on oxygen consumption and leg forces when using classical style roller skis2014In: Scandinavian Journal of Medicine and Science in Sports, ISSN 0905-7188, E-ISSN 1600-0838, Vol. 24, no 2, 301-310 p.Article in journal (Refereed)
    Abstract [en]

    The purpose of this study was to investigate the influence of classical style roller skis' grip (static friction coefficients, μ S) on cross-country skiers' oxygen consumption and leg forces during treadmill roller skiing, when using the diagonal stride and kick double poling techniques. The study used ratcheted wheel roller skis from the open market and a uniquely designed roller ski with an adjustable camber and grip function. The results showed significantly (P≤0.05) higher oxygen consumption (∼14%), heart rate (∼7%), and lower propulsive forces from the legs during submaximal exercise and a shorter time to exhaustion (∼30%) in incremental maximal tests when using roller skis with a μ S similar to on-snow skiing, while there was no difference between tests when using different pairs of roller skis with a similar, higher μ S. Thus, we concluded that oxygen consumption (skiing economy), propulsive leg forces, and performance time are highly changed for the worse when using roller skis with a lower μ S, such as for on-snow skiing with grip-waxed cross-country skis, in comparison to ratcheted wheel roller skis with several times higher μ S.

  • 35.
    Ainegren, Mats
    et al.
    Mid Sweden University, Faculty of Human Sciences, Department of Health Sciences.
    Carlsson, Peter
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering, Physics and Mathematics.
    Tinnsten, Mats
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering, Physics and Mathematics.
    Rolling resistance for treadmill roller skiing: Presented at International Congress on Science and Nordic Skiing 2006, June 18-20, 2006, Vuokatti, Finland2006Conference paper (Other academic)
  • 36.
    Ainegren, Mats
    et al.
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Technology and Management, Mechanical Engineering and Mathematics.
    Carlsson, Peter
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Technology and Management, Mechanical Engineering and Mathematics.
    Tinnsten, Mats
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Technology and Management, Mechanical Engineering and Mathematics.
    An experimental study to compare the grip of classical style roller skis with on-snow skiing2013In: Sports Engineering, ISSN 1369-7072, E-ISSN 1460-2687, Vol. 16, no 2, 115-122 p.Article in journal (Refereed)
    Abstract [en]

    Cross-country skiers use roller skis for their snow-free training with the aim of imitating skiing on snow. Also, exercise laboratories evaluate the biomechanics and physiology of cross-country skiing using roller skis on a treadmill. The roller skis on the market that are constructed for use in the classical style are equipped with a front and a back wheel, one of which has a ratchet to enable it to grip the surface when diagonal striding and kick double poling (static friction). The aim of this study was to investigate static friction coefficients (μS) of ratcheted wheel roller skis, and compare the results to the μS reported from skiing on snow with grip-waxed cross-country skis. Also, a new type of roller ski with a camber and adjustable grip function was evaluated. The results showed that ratcheted wheel roller skis, on a treadmill rubber mat and on dry and wet asphalt surfaces, reached μS values that were five to eight times greater than the values reported from on-snow skiing with grip-waxed cross-country skis. For the roller skis with a camber and adjustable grip function, the μs could be varied from no grip at all up to the level of the tested ratcheted wheel roller skis.

  • 37.
    Ainegren, Mats
    et al.
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Technology and Management, Mechanical Engineering and Mathematics.
    Carlsson, Peter
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Technology and Management, Mechanical Engineering and Mathematics.
    Tinnsten, Mats
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Technology and Management, Mechanical Engineering and Mathematics.
    Laaksonen, Marko S.
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Technology and Management, Mechanical Engineering and Mathematics.
    Skiing economy and efficiency in recreational and elite cross-country skiers2013In: Journal of Strength and Conditioning Research, ISSN 1064-8011, Vol. 27, no 5, 1239-1252 p.Article in journal (Refereed)
    Abstract [en]

    The purpose of this study was to investigate and compare skiing economy and gross efficiency in cross-country skiers of different performance levels, ages and genders; male recreational skiers and elite senior and junior cross-country skiers of both genders. The skiers performed tests involving roller skiing on a treadmill using the gear 3 and diagonal stride techniques. The elite crosscountry skiers were found to have better skiing economy and higher gross efficiency (5-18%) compared with the recreational skiers (p < 0.05) and the senior elite had better economy and higher efficiency (4-5%) than their junior counterparts (p < 0.05), whereas no differences could be found between the genders. Also, large ranges in economy and gross efficiency were found in all groups. It was concluded that, in addition to v̇O2peak, skiing economy and gross efficiency have a great influence on the differences in performance times between recreational and junior and senior elite cross-country skiers, as well as between individual skiers within the different categories. Thus, we recommend crosscountry skiers at all performance levels to test not only v̇O2peak, but also skiing economy and efficiency.

  • 38.
    Ainegren, Mats
    et al.
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Technology and Management, Mechanical Engineering and Mathematics.
    Rännar, Lars-Erik
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Technology and Management, Mechanical Engineering and Mathematics.
    Carlsson, Peter
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Technology and Management, Mechanical Engineering and Mathematics.
    Tinnsten, Mats
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Technology and Management, Mechanical Engineering and Mathematics.
    The multifunctional roller ski2013In: Science and Nordic Skiing II / [ed] Hakkarainen A, Linnamo V, Lindinger S, University of Salzburg, University of Jyväskylä , 2013, 253-261 p.Chapter in book (Refereed)
  • 39.
    Akdag, Gülsah
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences.
    Fysiologiska tester för karatelandslaget: Kartläggning och testning av fysiska tester2010Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Sedan en tid tillbaka har karatelandslaget haft behov av fysiologiska tester och de har velat ta fram en ny kravprofil. Det har tidigare funnits två stycken kravprofiler som man inte har utvärderat och båda är skapade av två olika ledningar.

    Syfte:

    Syftet är att utvärdera tester som landslaget skall använda vid uttagningar och vid fysiologiska testtillfällen för att se utvecklingen i de fysiska förmågorna hos aktiva.

    Frågeställningar:

    Vilka tester skall läggas till kravprofilen? Vilka tester skall tas bort från kravprofilen?, Vilka tester skall förändras i kravprofilen?

    Metod:

    Äldre kravprofiler granskades och internationella förbund kontaktades med telefon och internet för att ta reda på mer information om fystester. Förbund som kontaktades var turkiska -, franska-, spanska -, ryska - och japanska förbundet. Även likartade idrottsförbund som boxning -, wushu - och takewandoförbundet kontaktades. Information hittades även via pubmed, artiklar och böcker. Även en pilotstudie genomfördes med tester som; knäböj, chins, bänkpress, spänsthopp och powertest på testpersonerna. Två av TP (testpersonerna) är aktiva i landslaget och två har varit aktiva. Alla TP är mellan 21-25 år gammal och alla har varit tävlingsaktiva i flera år.

    Resultat:

    Vissa av testerna från de gamla kravprofilerna behölls för att de var relevanta, vissa tester lades till och vissa ändrades för att bli mer specifika för karate. Tester som valdes att läggas till blev; knäböj, squat jumps, CMJ, ett bens hopp med båda benen och bänkpress. Tester som valdes att ändras var; abalakowtestet, plint testet samt matcherna. Tester som valdes att behållas var; chins, intervaller och brutalbänken. Resultaten från pilotstudien skiljde sig från person till person i förhållande till deras kroppsvikt. Detta resultat har ej används för att bedöma kravprofilen pågrund av att de inte var för spetstruppen i landslaget. Orsaken till att de ovannämnda testen valdes var att dom testerna är mer specifika och relevanta för karate.

    Slutsats:

    Vid granskning av kravprofil insågs att det redan finns bra tester tillgängliga, ett av dessa är chins och ett annat är brutalbänken, som är viktigt vid utövandet av sparkar, då man bör ha en stark höftbörjarmuskel (iliopsoas). Kravprofilen rekommenderas att genomföras två gånger om året för att se om det sker någon förbättring.

  • 40.
    Al Mosawi, Farkad Hadi Emad
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences.
    Simning, kultur och religion: En studie om tjejer som inte kan/vill delta på simlektioner p.g.a. kulturella/religiösa skäl2013Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Syfte

    Syftet med denna undersökning är att ta reda på hur lärare inom idrott och hälsa går till väga för att kunna undervisa flickor som inte kan/vill delta på simlektioner, p.g.a. religiösa/kulturella skäl.

    Frågeställningar:

    Hur hanterar idrottslärare problematiken som uppstår med elever som inte kan/vill delta på simundervisningen?

    Hur ser elever som inte kan/vill delta på simundervisningen på denna problematik?

    Metod

    Den metod som tillämpats i denna undersökning har varit den kvalitativa intervjun, denna metod valdes p.g.a. att den ger utrymme för diskussion samt reflektion. Vid tillämpandet av den kvalitativa intervjun så är frågorna som ställs vägledande för diskussionen och inte hämmande för utveckling av tankar och tycken. Sammanlagt intervjuades tre lärare och nio elever, en lärare och tre elever intervjuades i varje skola, vid tre olika skolor. Lärarna intervjuades enskilt, medan eleverna intervjuades i grupper.

    Resultat

    Av de intervjuer som genomfördes med lärarna så har det visat sig att användningen av simhallar med tider endast för kvinnor är väsentlig, för flickor som inte kan delta på skolans simundervisning med resten av klassen. Det har även visat sig vara problematiskt för vissa elever, då de ibland inte fått den handledning de behöver för att kunna få en godtagen simundervisning.

    Slutsats

    Det verkar som att denna problematik för flickor kan vara ett hinder för de att få ett slutbetyg i ämnet idrott och hälsa, för att kunna förebygga detta så krävs kommunikation mellan skola och hem. Genom att uppmärksamma simkunnighetens innebörd för dessa flickor och deras familjer så kan förhoppningsvis en lösning finnas. Det krävs tid och engagemang från lärarens sida, och stöd från skolan.

  • 41.
    Albertsson, Josefin
    et al.
    Linnaeus University, Faculty of Social Sciences, Department of Sport Science.
    Ferner, Johanna
    Linnaeus University, Faculty of Social Sciences, Department of Sport Science.
    Idrott och Hälsa med fokus på Hälsa: En kvalitativ studie om elevers syn på hälsa i undervisningen2014Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    This study builds on students' views and perceptions about health and how health is affected in physical education. Many studies deal with the teacher 's view of the health concept of the subject and not on the student's vision. The purpose of our study is to see health from a student perspective, to achieve our result we interviewed thirty-two high school students to find out their views on how the subject is given in terms of teaching. The results indicate that students see health from a physical and psychological perspective, but that the teaching of the subject most affects the physical activity and aspect. Students find that the health concept of the subject is important and should be affected more than it does in teaching. The results have been analyzed according to a curriculum theory perspective where the focus is on realizing the stadium , which means how the content looks like in actual teaching in relation to policy documents and teachers' interpretations. In summary , the study from a student perspective how high school students perceive health - both their own beliefs and how they feel that it is found in teaching.

    Keywords: Physical education and health education in health, student perspective, curriculum theory, the concept of health .

  • 42.
    Albertsson, Sandra
    et al.
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Sports Medicine.
    Juntunen, Martin
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Sports Medicine.
    Styrketräningsadaption: Aminosyrafördelning och intracellulär signalering2013Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Muscle mass regulation is responsive to a variety of stimuli, whereas amino acids and resistance exercise are two major regulators. Protein accretion occurs when the rate of protein synthesis exceeds the rate of protein degradation. It has long been recognized that both amino acid and resistance exercise effect protein synthesis and protein degradation, although the effect of varying distribution of amino acids remain unknown. The intracellular pathways by which protein synthesis are activated is complex. The purpose of this essay is to elucidate if there exist any scientific rationale to spread the amino acid intake over the day, with the purpose to maximize muscle protein accretion in response to resistance exercise. Furthermore , we intend to describe how amino acids and resistance exercise effect the molecular pathways that regulate protein synthesis, with the main focus on pathways that activate and are activated by mTOR.

    Studies that examine acute effects on protein synthesis or protein balance after resistance exercise and amino acid intake support the notion that there may be an advantage to spread the amino acid intake over the day, since the synthetic response to amino acids are transient. However, studies examining the effect of different meal frequencies on protein accretion and /or training results fail to support this notion. Both amino acids and resistance exercise seems to independently activate the intracellular pathways that regulate protein synthesis, with the effect being greatest when both are combined. The regulation also seems to be dependent on exercise intensity and volume, age of test subjects, contraction type and muscle fiber type. Furthermore, some researchers have found correlations between activation of these pathways and resistance exercise-induced muscle gain and strength gain.

  • 43.
    Aldén, Henrik
    et al.
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences.
    Mossberg, Joakim
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences.
    Aerob träning versus dataspel: en minnesvärd jämförelse2015Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Sammanfattning

    Syfte och frågeställningar: Syftet med studien var att ställa aerob träning som aktivitet mot dataspel som aktivitet och jämföra hur bägge dessa aktiviteter påverkar närminnet. Likheter samt skillnader är två frågeställningar som ligger till grund för denna studie.

    Metod: En kvalitativ litteraturstudie har genomförts utifrån 54 abstract av studier som var av intresse för relevans till studiens syfte. Utav dessa 54 studier har 20 stycken sållats ut efter betydelse om vad data-/tv-spel och aerob träning har för effekt på minnet. Dessa studier valdes ut efter kriterier där minnet specifikt varit undersökt eller varit en stor del av studien. De studier som valdes bort fokuserade på andra kognitiva områden i hjärnan och blev därmed inte kvalificerade för denna studie. Som metod användes litteraturstudie där slutligen 20 olika studier samlats och granskats genom en matris för att sammanställa ett resultaten.

    Resultat: Jämförelsen mellan dessa två aktiviteter (aerobträning och dataspelande) ledde sammanställt till två olika, dock positiva, resultat. De flesta studierna, 19 stycken, visade positiva resultat men en studie visade på att det inte fanns något samband till att påverka närminnet. Närminnet kan bli påverkat på olika sätt beroende på vilken aktivitet som granskas. Aerob träning gör hippocampus i hjärnan mer hållbart. Hjärncellerna är mer toleranta för påfrestning vilket leder till att olika sjukdomar kan underlättas. Träning visar också på ökad volym av hippocampus och därmed ökad aktivitet. Dataspelandet är som träning för närminnet, vilket visar sig genom att vi kan komma ihåg fler saker tillfälligt samt över en längre tid.

    Slutsats: Bägge aktiviteterna har en positiv effekt på närminnet men på olika sätt. Inga generella slutsatser av de effekter som aerob träning och dataspelande kan ha på närminnet kan dock fastställas.

  • 44. Aleskog, Oscar
    Skavsår och skrubbsår: En studie om idrottslärares upplevelser av skador2012Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
  • 45.
    Alf, Viktor
    et al.
    Dalarna University, School of Education, Health and Social Studies, Sport and Health Science.
    Lindberg, Linus
    Dalarna University, School of Education, Health and Social Studies, Sport and Health Science.
    Kartläggning av tillslagsprecision i fotboll2015Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The aim of this study is to analyze if the precision of a shot and a pass differs between professional youth players (16-18 years) and senior players (22+ or older).

    Method

    A total of 30 elite players which were 16 males and 14 females performed tests in shooting and passing precision. The set-up on the test days were a total of 60 shots(30 lying still and 30 half volley) and 80 passes (20 lying still best foot, 20 rolling best foot, 20 lying still next best foot and 20 rolling next best foot). The test results were analyzed using Excel and Kinovea. In these programs the mean value and standard deviation for each player and test group could be calculated.

    Results

    The result shows that there were only significant differences in one of six parts regarding precision on the men's side. On the women's side, there was no significant difference in any of the six moments.

    Conclusions

    The authors of this study identified a plateau between players aged 16-18 and senior players in terms of accuracy in passing and shooting. Players between the ages of 16-18 is as good as a senior player at the individual skills passing and shooting. This plateau can be the result of too little individual training so called isolated training in terms of precision. If the club coaches follow the training SvFF educate, only two minutes per training session goes to each individual skill (SvFF names 13 skills). The lack of time for these skills can be a decisive factor for why the development of precision stands still today.

  • 46.
    Alfermann, Dorothee
    et al.
    University of Leipzig.
    Stambulova, Natalia
    Halmstad University, School of Social and Health Sciences (HOS), Centre of Research on Welfare, Health and Sport (CVHI).
    Career transitions and career termination2007In: Handbook of sport psychology / [ed] Gershon Tenenbaum and Robert C. Eklund, Hoboken, N.J.: John Wiley & Sons, 2007, 3, 712-733 p.Chapter in book (Refereed)
    Abstract [en]

    The purpose of this chapter is to comprehensively overview this research area and expand the perspectives provided in the two earlier editions of this Handbook. In this chapter, we first define and explain the key concepts of athletic career, career transition, and career termination. In subsequent sections, we discuss the theoretical background, the empirical research, and intervention approaches as they are concerned with career transitions and termination. We close the chapter with suggestions for future research in the career transition area.

  • 47.
    Alfredson, Håkan
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Sports Medicine.
    Midportion Achilles tendinosis and the plantaris tendon2011In: British Journal of Sports Medicine, ISSN 0306-3674, E-ISSN 1473-0480, Vol. 45, no 13, 1023-1025 p.Article in journal (Refereed)
    Abstract [en]

    Objectives: When re-operating patients with midportion Achilles tendinosis, having had a poor effect of ultrasound (US) and Doppler-guided scraping, the author found the involvement of the plantaris tendon to be a likely reason for the poor result. The aim of this study was to investigate the occurrence of a plantaris tendon in close relation to the Achilles tendon in consecutive patients with midportion Achilles tendinosis undergoing treatment with US and Doppler-guided scraping.

    Material and methods: This study includes 73 consecutive tendons with chronic painful midportion Achilles tendinosis, where US+Doppler examination showed thickening, irregular tendon structure, hypo-echoic regions, and localised high blood flow outside and inside the ventral Achilles midportion. The tendons were treated with US+Doppler-guided scraping, via a medial incision. If there was a plantaris tendon located in close relation to the medial Achilles, it was extirpated.

    Results: An invaginated, or ‘close by located’, enlarged plantaris tendon was found in 58 of 73 (80%) tendons. Preliminary clinical results of the combined procedure, US + Doppler-guided surgical scraping and extirpation of the plantaris tendon, are very promising.

    Conclusions: A thickened plantaris tendon located in close relation to the medial Achilles seems common in patients with chronic painful midportion tendinosis. The role of the plantaris tendon in midportion Achilles tendinosis needs to be further evaluated and should be kept in mind when treating this condition.

  • 48.
    Alfredson, Håkan
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Sports Medicine.
    Eccentric calf muscle training: the story2010In: Sportverletzung, Sportschaden, ISSN 0932-0555, Vol. 24, no 4, 188-189 p.Article in journal (Refereed)
  • 49.
    Alfredson, Håkan
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Sports Medicine.
    Can specific treatment prevent progressive tendon degeneration?2011In: British Journal of Sports Medicine, ISSN 0306-3674, E-ISSN 1473-0480, Vol. 45, no 4, 334- p.Article in journal (Refereed)
    Abstract [en]

    Background Tendon degeneration is generally believed to be irreversible.

    Objective To use ultrasound to study the Achilles midportion tendon structure and thickness before and after treatment of chronic painful tendinosis.

    Design Prospective study.

    Patients and interventions Middle aged patients on varying activity levels, having midportion chronic Achilles tendinosis, were followed with ultrasound examinations before and after treatment with eccentric training, sclerosing polidocanol injections and surgical scraping.

    Outcome measurements Tendon thickness and structure.

    Results 89 patients successfully treated (pain-free during tendon loading) with eccentric training (n=22), sclerosing polidocanol injections (n=38) and surgical scraping (n=29), had a significantly thinner Achilles midportion and a more normal tendon structure, after compared to before, treatment.

    Conclusion For the Achilles midportion, tendon degeneration might not be irreversible. The findings indicate a possible regeneration potential.

  • 50.
    Alfredson, Håkan
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Sports Medicine.
    Ultrasound and Doppler-guided mini-surgery to treat midportion Achilles tendinosis: results of a large material and a randomised study comparing two scraping techniques.2011In: British Journal of Sports Medicine, ISSN 0306-3674, E-ISSN 1473-0480, Vol. 45, no 5, 407-410 p.Article in journal (Refereed)
    Abstract [en]

    BACKGROUND: Treatment based on ultrasound (US) and colour Doppler (CD) findings in midportion Achilles tendinosis has shown promising results. In a randomised study on a small patient material, similar short-term clinical results were demonstrated with surgery outside the tendon and sclerosing polidocanol injections, but surgical treatment led to a faster return to activity.

    OBJECTIVE: To evaluate the clinical results of US and CD-guided mini-surgery (scraping) outside the ventral tendon in a larger patient material and, in a randomised study, compare two different techniques for surgical scraping.

    MATERIAL AND METHODS: 103 patients (66 men, 37 women), mean age 43 years (range 24-77), with midportion tendinosis in 125 Achilles tendons were included. Patients from a large group (88 tendons), and a randomised study (37 tendons), were in local anaesthesia treated with a US and CD-guided new surgical approach outside the ventral tendon. All patients in the large group, and one arm of the randomised study, were treated open with a scalpel, while the other arm of the randomised study were treated percutaneously. Pain during Achilles tendon loading activity (Visual Analogue Scale (VAS)), and satisfaction with treatment, were evaluated.

    RESULTS: Before surgery, the mean VAS was 73. After surgery (follow-up mean 18 months, range 6-33), the mean VAS was 3 in 111 tendons (89%) from satisfied patients back in full Achilles tendon loading activity. In the randomised study, there were no significant differences in the results between open treatment with a scalpel and percutaneous treatment with a needle.

    CONCLUSIONS: US and CD-guided scraping show good short-term results in midportion Achilles tendinosis.

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