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Relation mellan bål- och axelrörlighet hos elitspelande tennisjuniorer
Luleå University of Technology, Department of Health Sciences, Health and Rehab.
2016 (Swedish)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesisAlternative title
The relationship between trunk and shoulder range of motion in elite junior tennis players (English)
Abstract [sv]

Abstrakt

Bakgrund: Upprepade rörelser och hållning i dagliga aktiviteter, arbete eller idrott kan påverka det neuromuskuloskeletala systemet. Upprepade förändringar av hållning och rörelser kan ge upphov till lokaliserad stress på vävnaden. Inom tennis är axelleden väl studerad. I litteraturen ses adaptiva förändringar av axelrörlighet hos tennisspelare och andra kastidrottare. Bålens rörlighet och förhållandet mellan bål- och axelrörlighet är ej studerad.

Syfte: Syftet med studien var att undersöka bålrotation, glenohumeralledsrotation och korrelation mellan bålrotation och glenohumeralledsrotation hos elitspelande tennisjuniorer 16-19 år samt att identifiera eventuella idrottsspecifika adaptationer avseende bålrotation och glenohumeralledsrotation.

Metod: Passiv rotationsrörlighet i glenohumeralleden mättes med en clinometer på en smartphone samt aktiv bålrotation i sittande med en goniometer placerad vid T2. Deltagarna var 32 tennisjuniorer och kontrollgruppen bestod av 30 fotbollsjuniorer i ålder 16-19 år. Deskriptiv statistik för inåt- utåtrotation och bålrotation presenterades. Skillnader mellan tennis och kontrollgrupp analyserades. Korrelation mellan bålrotation och  inåt- samt utåtrotation analyserades.

Resultat: Bålrotation mot icke dominant sida var lägre hos tennisspelarna jämfört med fotbollsspelarna. Ingen tydlig korrelation kunde ses mellan rotationsrörlighet i axeln och bålrotation. Tennisspelarna hade sämre inåtrotation och total rotationsrörlighet (TROM) i glenohumeralleden i dominant arm jämfört med fotbollsspelarna, dessutom minskar deras inåtrotation och TROM med stigande ålder.

Konklusion: Det föreligger antydningar till adaptiva förändringar hos tennisspelare med minskad bålrotation åt icke dominant sida samt nedsatt inåtrotation på dominant axel.

Abstract [en]

Abstract

Background: Repeated movements and sustained postures in daily activity, work and in sports can influence the neuromusculoskeletal system. Repeated changes in posture and movement might cause local stress in the tissue. Adaptive effects in the mobility of the shoulder in tennis players and other overhead athletes are well documented in the literature. Research of trunk mobility and its effect on the shoulder is limited.

Aim: The aim of this study was to investigate trunk rotation, glenohumeral rotation and the correlation between trunk rotation and glenohumeral rotation in elite junior tennis players 16-19 years old. Secondly, to identify athletic adaptations in trunk rotation and glenohumeral rotation in elite junior tennis players.

Methods: Range of motion in the glenohumeral joint for internal and external rotation was measured with a clinometer on a smartphone. Range of motion for trunk rotation was measured with seated rotation test with a goniometer placed at T2. The participants were 32 elite junior tennis players and the control group was 30 elite junior soccer players aged 16-19 years old. Descriptive statistics for range of motion in shoulder and trunk rotation was presented. Differences between tennis players and control group were analyzed. Correlation between trunk rotation and internal and external rotation was analyzed.

Results: Trunk rotation to the non dominant side had lower scores in tennis players than in soccer players. No obvious correlation was detected between shoulder rotation and trunk rotation.

Tennis players had less internal rotation and total rotation range of motion (TROM) in their dominant arm compared to the control group.  This reduction in internal rotation and TROM increased with age.

Conclusion: There are some indications for adaptive changes in tennis players with reduced trunk rotation to the non dominant side and reduced internal rotation in the dominant shoulder.

Place, publisher, year, edition, pages
2016.
Keyword [en]
shoulder, trunk, mobility, tennis
Keyword [sv]
axel, bål, rörlighet, tennis
National Category
Physiotherapy
Identifiers
URN: urn:nbn:se:ltu:diva-60063OAI: oai:DiVA.org:ltu-60063DiVA: diva2:1043772
Educational program
Physiotherapy, master's level
Supervisors
Examiners
Available from: 2016-11-25 Created: 2016-10-31 Last updated: 2016-11-25Bibliographically approved

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