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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Profile of isokinetic eccentric-to-concentric strength ratios of shoulder rotator muscles in elite female team handball players

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Author(s):
Andrade, Marilia Dos Santos [1] ; Fleury, Anna Maria [1] ; Barbosia de Lira, Claudio Andre [2] ; Dubas, Joao Paulo [1] ; da Silva, Antonio Carlos [1]
Total Authors: 5
Affiliation:
[1] Univ Fed Sao Paulo, Dept Physiol, BR-04023900 Sao Paulo - Brazil
[2] Univ Fed Goias, Jatai - Brazil
Total Affiliations: 2
Document type: Journal article
Source: JOURNAL OF SPORTS SCIENCES; v. 28, n. 7, p. 743-749, 2010.
Web of Science Citations: 39
Abstract

The purpose of this study was to establish the isokinetic profile of shoulder rotator muscles strength in female handball players. Twenty-seven handball players performed concentric and eccentric strength tests of both dominant and non-dominant upper limbs on an isokinetic dynamometer. Internal and external rotator muscles peak torque was assessed at 1.05, 3.14, and 5.23 rad center dot s-1 in concentric mode and at 3.14 and 5.23 rad center dot s-1 in eccentric mode. Concentric balance ratio and functional ratio were obtained. Bi-lateral deficiency was compared. Concentric strength for internal and external rotation was significantly greater for the dominant than for the non-dominant limb for all speeds (P0.0001). For eccentric actions, internal rotator muscles were stronger in the dominant than the non-dominant limb (P0.0001) at both speeds. Concentric balance and functional balance ratios did not differ between sides at 3.14 rad center dot s-1 (P=0.1631), but at 5.23 rad center dot s-1 the functional balance ratio in the dominant limb was lower than for the non-dominant limb (P=0.0500). Although the dominant side was stronger than the non-dominant side, balance concentric ratios remained the same, with only the functional strength ratio different at 5.23 rad center dot s-1. Our results suggest that concentric strength exercises be used for internal and external rotators on the non-dominant side, and functional exercise that improves eccentric rotation strength for prevention programmes. (AU)