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. 2014 Feb 21;9(2):e89157. doi: 10.1371/journal.pone.0089157

Figure 4. Motor-evoked potential normalized to maximal M-wave amplitude (MEP·Msup −1) at 50, 75 and 100% of maximal voluntary contraction level for rectus femoris (RF, panel A), vastus lateralis (VL, panel B) and vastus medialis (VM, panel C) before (PRE), after 80 min (MID1) and 160 min (MID2) of cycling and after the 4-h cycling exercise (POST).

Figure 4

Significantly different from PRE: *P<0.05.