The combination of peak torque and peak velocity estimates power and there is no difference ( p = 0.051) with and without agonists: 452.56°Nm/s.kg without agonists and 542.13°Nm/s.kg with them. The peak angular limb velocity-starting at 50% of the maximum torque-is smaller in hip extension with agonists (215.96°/s) than in a knee flexion without them (452.56°/s). We compared the peak isometric torque in hip extension with agonists (2.93 Nm/kg) and without them (1.21 Nm/kg): the difference is significant. Twenty amateur athletes aged 25.7 ± 4.9, were studied during two motor tasks-hip extension and knee flexion, both isometric & dynamic-with an elastic resistance band and DINABANG portable instrument.

The purpose of this study is to provide normative values of torque, velocity and power involving hamstring muscles opposing elastic bands. Hip extension with a fully extended knee involves hamstring agonists, while knee flexion involves only the hamstring. The quantitative dynamic monitoring of the performance of hamstring muscles during rehabilitation and training cannot currently be undertaken using elastic resistance bands.

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