Figure 2.

Basal contraction time (Tc) and muscle belly displacement (Dm) associations with repeated sprint (RS) fatigue and performance markers at all the electrical stimulation amplitudes used. Blue circles represent significant positive correlations, while red circles represent significant negative correlations (p < 0.05). The strength of the blue or red colors shows the strength of the correlation, also shown from 0 to 1 on the right bar. MVIC = peak torque during maximum voluntary isometric contraction. mA = milliamperes. DmMax = supramaximal amplitude stimulation.