Fig. 1

Graphical representation of the experimental protocol and the variables used for data analysis. MVC, maximal voluntary contraction; before (PRE) and after (POST) the 30-s unilateral isometric maximal leg extension exercise; RMSmax_pre, root mean square maximal value recorded during the best MVC PRE; VL, vastus lateralis; VM, vastus medialis; RF, rectus femoris; EL, exercising limb; NEL, non-exercising limb