Control group: concentric (pain‐free) exercise protocol
knee flexion
CONTRACTIONS
Ten individuals were included in the control (pain‐free concentric exercise) group. Participants were seated upright on the dynamometer and secured with their hips in 90° of flexion and knees in 0° of flexion. Immediately following a warm‐up (3 sets of 10 concentric hamstring contractions, with each set gradually decreasing in velocity [90, 75, and 60°/s, respectively]), participants completed 10 sets of 10 maximal concentric contractions of the right hamstring muscles through a 90° knee flexion range of motion and an angular velocity of 45°/s. The participants were instructed to maximally bring their knee into flexion against the lever arm. As the lever arm returned back to the start position, the participants were asked to relax and passively allow the knee to straighten (Johansson et al., 