Isokinetic peak torque rotations in dominant arms between powerlifters and healthy controls

Resumo

Powerlifting is a sport based in maximal strength in three exercises: i) squat, ii) bench press and iii) deadlift. Specifically, on squat and the bench press, the shoulder joint stay at some positions and ranges of motion with overload. The aim of this study was to compare peak torque (PT; Nm) in dominant arms (D) between powerlifters and physical active people for shoulder external (ER) and internal rotation (IR). The participants were male, two groups, 14 recreationally powerlifters (PL) and 14 recreationally physical active people (AP). The PT for ER and IR of shoulder joint were assessed by Biodex isokinetic dynamometer, 60°/s and 180°/s concentric mode was adopted for velocity degree. The D shoulder ER and IR between PL and AP were compared with unpaired student's t-test. There was no significant difference between PL and AP at 60°/s for ER (p=0.09) and IR (p=0.05); and 180°/s for ER (p=0.12) and IR (p=0.09). Despite Powerlifting being a strength sport modality, there are not significant differences between the peak torque in recreationally powerlifters and physical active people in ER and IR in two different velocities.