Figure 1. Quadriceps twitch force (Q_tw;A) and M-wave amplitudes (B) as a direct response to magnetic stimulation of the femoral nerve applying single twitches (1 Hz) at increasing stimulator power settings (F_IO20.21).

The incremental protocol was applied after a 10 min rest period and completed 15 min before the pre-exercise assessment of neuromuscular function. The electromyographic activity was recorded from three pairs of surface electrodes (rectus femoris, vastus medialis, vastus lateralis) and M-wave amplitudes were analysed using a customized software program. n = 8.