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Strength Values of Shoulder Internal and External Rotators in Elite Volleyball Players
Objective: To determine concentric shoulder external-internal rotator strength, dominant and non-dominant shoulder differences and agonist/antagonist ratios. Design: A transversal study of isokinetic dynamometry of healthy shoulders, 95% confidence intervals are presented. Participants: 35 asymptoma...
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Published in: | Journal of sport rehabilitation 2006-08, Vol.15 (3), p.236-245 |
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Main Authors: | , , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | Objective: To determine concentric shoulder external-internal rotator strength, dominant and non-dominant shoulder differences and agonist/antagonist ratios. Design: A transversal study of isokinetic dynamometry of healthy shoulders, 95% confidence intervals are presented. Participants: 35 asymptomatic elite, male volleyball players. Measurements: Peak torque normalized for body weight was recorded at 60, 180, and 300°/sec. with a Cybex 6000 dynamometer. Results: (1) internal rotators were significantly stronger than external rotators of the same shoulder; (2) internal rotators of the dominant arm were significantly stronger than of the non-dominant arm; (3) no difference existed between external rotators of the dominant and the non-dominant arm; (4) external–internal rotator ratios of the dominant arm were significantly lower than of the non-dominant arm; and (5) no differences were found between the ratios of each arm separately. Conclusions: Data presented are important for interpreting isokinetic shoulder rotator strength tests in elite volleyball players and could be relevant in rehabilitation and prevention of shoulder injuries. |
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ISSN: | 1056-6716 1543-3072 |
DOI: | 10.1123/jsr.15.3.236 |