Shoulder isokinetic profile of male handball players of the Brazilian National Team
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2013-12
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Resumo
Background: Data obtained on an isokinetic dynamometer are useful to characterize muscle status and have
been reported in muscle imbalance studies in different types of sport. However, few studies have assessed elite handball
players to establish reference values. Objective: The purpose of this study was to compare, for the dominant (D) and
non-dominant (ND) side, the isokinetic profile of shoulder rotator muscle strength between male handball players (H)
and asymptomatic non-athletes (NA). Method: Isokinetic concentric and eccentric strength tests for D upper limbs
were performed by the H group (n=20) and the NA group (n=12). Internal and external rotator muscle peak torque in
concentric action was assessed at 60°/s and 300°/s and in eccentric action at 300°/s. We also calculated conventional
balance (the ratio of external rotator peak torque to internal rotator peak torque in concentric action) and functional
balance (the ratio of external rotator peak torque in eccentric action to internal rotator peak torque in concentric action).
Results: In the H group, dominant limbs were stronger in concentric action for external rotation at 60 and 300°/s. The
conventional balance ratio for the D side was significantly lower at 60 and 300°/s for H compared to NA. The functional
ratio for the D side was significantly lower at 300o/s for H compared to NA. Conclusions: Compared to asymptomatic
non-athletes, handball players presented significant muscular imbalance resulting from daily sports practice, a known
risk factor for shoulder injuries.
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Palavras-chave
Physical therapy, Muscle strength, Isokinetic dynamometer, Shoulder joint, Athletic injuries, Handball
Citação
ANDRADE,Marília S. et al. Shoulder isokinetic profile of male handball players of the Brazilian National Team. Brazilian Journal of Physical Therapy, São Carlos, v. 17, n. 6, p. 572-578, Nov./Dec. 2013.