ISOKINETIC PEAK TORQUE AT THE SHOULDER JOINT IN YOUNG VOLLEYBALL ATHLETES WITH AND WITHOUT INJURY HISTORY

Studies suggest that muscle imbalance between the internal and external rotator muscles of the shoulder may be related to such lesions. The objective of this study was to compare the concentric torque peaks (PT) of external and internal rotators of the shoulder in volleyball players with (HL) and without history of injuries in joint shoulder (SH).

Participated of present study 21 male volleyball players (age: 17.2 ± 1.96 years, height: 183.6 ± 6.63 cm, weight: 75.1 ± 11.50 kg, fat: 13.4 ± 2, 77%) divided into 2 groups: HL (n = 8); SH (n = 13). Two series of 5 maximal concentric repetitions of internal (RI) and external rotation (RE) of the shoulder were performed at speeds of 60 and 180 °·s for later calculation of the conventional ratio PT concentric for RE at both velocities evaluated (60 and 180 °·s) were significantly higher for the HL group.