Does total rotation range of motion asymmetry have an effect on shoulder isometric muscle strength in young swimmers?

Authors : Ferhat ÖZTÜRK, Aykut ÖZÇADIRCI, Ş Alpan CİNEMRE, Gizem İrem KINIKLI

Pages : 389-394

Doi:10.33808/clinexphealthsci.679983

View : 26 | Download : 11

Publication Date : 2020-12-30

Article Type : Research Paper

Abstract :Objective: The total rotational range of motion insert ignore into journalissuearticles values(TRROM); difference in right-left side shoulder glenohumeral joint and muscle strength imbalance  in the dominant-nondominant side have been reported to be associated with injury in swimmers. The purpose of this study was to investigate  the shoulder isometric muscle strength of young swimmers with and without TRROM asymmetry. Methods: Assessments of passive TRROM were measured with a goniometer. Hand-held dynamometry was used for the shoulder isometric  muscle strength measurements in young swimmers. Thirty-two female swimmers insert ignore into journalissuearticles values(age: 11.1±1.5 years; body weight: 39.8±9.6 kg); and 42 male  swimmers insert ignore into journalissuearticles values(age: 10.9±1.6 years; body weight 38.1±8.3 kg); were divided into two groups according to TRROM asymmetry in glenohumeral joint. Results: Isometric strength of shoulder muscles insert ignore into journalissuearticles values(flexion , extension , external rotation insert ignore into journalissuearticles values(ER); , internal rotation insert ignore into journalissuearticles values(IR); , Flexion: Extension and  External rotation: Internal rotation); were similar between the groups with TRROM asymmetry insert ignore into journalissuearticles values(n=30); and without TRROM asymmetry insert ignore into journalissuearticles values(n=44); in  both dominant and non-dominant sides insert ignore into journalissuearticles values(p>0.05);. Additionally, while external rotation: internal rotation of dominant side was greater in femal   insert ignore into journalissuearticles values(p=0.04);, other isometric muscle strength and ratio were similar in both gender insert ignore into journalissuearticles values(p>0.05);. Conclusions: TRROM asymmetry is one of the many factors affecting muscle strength in overhead sports insert ignore into journalissuearticles values(basketball, volleyball); but it is not  effective in these ages range in the swimming.
Keywords : Asymmetry, muscle strength imbalance, overhead athlete, swim