Shoulder function and scapular position in boxers

Abstract Objectives To investigate differences in strength, shoulder range of motion and scapula position in a cohort of boxers in comparison with a control group of non-boxers. Design Cross-sectional study. Participants 18 boxers with 3 or more years of experience (years = 5.5 ± 3.1, sessions per w...

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Bibliographic Details
Published in:Physical therapy in sport 2015-11, Vol.16 (4), p.355-360
Main Authors: Lenetsky, Seth, Brughelli, Matt, Harris, Nigel K
Format: Article
Language:English
Subjects:
Adult
Boxing
Boxing - physiology
Case-Control Studies
Colleges & universities
Combat sports
Cross-Sectional Studies
Ethics
Humans
Injuries
Investigations
Male
Muscle Strength - physiology
Muscle Strength Dynamometer
Physical Medicine and Rehabilitation
Physical therapy
Range of Motion, Articular - physiology
Rotation
Scapula - physiology
Scapular dyskinesis
Shoulder
Shoulder Joint - physiology
Shoulder range of motion
Sports Medicine
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Summary:Abstract Objectives To investigate differences in strength, shoulder range of motion and scapula position in a cohort of boxers in comparison with a control group of non-boxers. Design Cross-sectional study. Participants 18 boxers with 3 or more years of experience (years = 5.5 ± 3.1, sessions per week = 4.3 ± 0.7, age = 27.0 ± 6.8) and 20 control participants (age = 28.3 ± 4.6). Experimental protocol The participants were tested for isometric internal and external rotation strength measured with a hand held dynamometer, passive internal and external rotation measured via 2D video using a digital camera, and scapular function measured with a scoliometer and visual inspection by a trained researcher. Both arms (dominant and non-dominant) were tested to allow for comparison. Magnitude based inferences were used to find meaningful differences intra and inter group. Results Boxers had greater scapular dyskinesis (hazard ratio (HR) = 2.73 ×/÷ 3.37) and increased external rotation in the dominant arm (effect size (ES) = 0.70 ± 0.68) when compared to the non-boxer group. Conclusion Boxers with 3 or more years of experience displayed symptoms that increase their risk of upper limb injury when compared to a control group.
ISSN:1466-853X
1873-1600
DOI:10.1016/j.ptsp.2015.02.003