Peak torque
Peak torque (Pt) was evaluated as the maximum isometric torque generated by the knee extensor muscles. The Pt was determined by multiplying the peak isometric force and the length of the segment, given by the distance between the attachment point of the load cell cable and the center of the knee joint. For this evaluation, a load cell (Kratos model CZC500) fixed on an inextensible cord and attached near the malleolus by means of a Velcro system positioned next to the malleoli was used