The purpose of this study was to examine the acute effects of static stretching on peak torque (PT) and the joint angle at PT during maximal, voluntary, eccentric isokinetic muscle actions of the leg extensors at 60 and 180°·s-1 for the stretched and unstretched limbs in women. Thirteen women (mean age ± SD = 20.8 ± 0.8 yr; weight ± SD = 63.3 ± 9.5 kg; height ± SD = 165.9 ± 7.9 cm) volunteered to perform separate maximal, voluntary, eccentric isokinetic muscle actions of the leg extensors with the dominant and nondominant limbs on a Cybex 6000 dynamometer at 60 and 180°·s-1. PT (Nm) and the joint angle at PT (°) were recorded by the dynamometer software. Following the initial isokinetic assessments, the dominant leg extensors were stretched (mean stretching time ± SD = 21.2 ± 2.0 minutes) using 1 unassisted and 3 assisted static stretching exercises. After the stretching (4.3 ± 1.4 minutes), the isokinetic assessments were repeated. The statistical analyses indicated no changes (p > 0.05) from pre- to poststretching for PT or the joint angle at PT. These results indicated that static stretching did not affect PT or the joint angle at PT of the leg extensors during maximal, voluntary, eccentric isokinetic muscle actions at 60 and 180°·s-1 in the stretched or unstretched limbs in women. In conjunction with previous studies, these findings suggested that static stretching may affect torque production during concentric, but not eccentric, muscle actions.
- Eccentric isokinetic
- Joint angle at peak torque
- Peak torque
ASJC Scopus subject areas
- Orthopedics and Sports Medicine
- Physical Therapy, Sports Therapy and Rehabilitation