Figure 1

Participants were seated with the hip flexed (80°), the knee slightly flexed (10°), the ankle slightly plantarflexed (110°) and the foot on a fixed platform on the tested side. Participants produced isometric plantarflexions. EMG activities at Sol (SOL EMG) and VL (VL EMG) were recorded. The FN was stimulated with a cathode at the femoral triangle and an anode on the postero-lateral aspect of the buttock (FN stimulation).