Table 2. Corticospinal silent period (ms) of the rectus femoris (RF), vastus lateralis (VL) and vastus medialis (VM) during contractions at 50, 75 and 100% of maximal voluntary contraction (MVC) of the quadriceps femoris muscles before (PRE), after 80 min (MID1) and 160 min (MID2) of cycling and after (POST) the 4-h cycling exercise.

	RF				VL				VM
	PRE	MID1	MID2	POST	PRE	MID1	MID2	POST	PRE	MID1	MID2	POST
50% MVC	175±62	171±62	174±64	173±64	175±64	171±63	177±66	173±65	171±69	170±66	168±72	170±65
75% MVC	167±72	172±71	171±70	167±66	165±73	166±72	169±72	163±68	164±73	163±73	164±77	162±69
100% MVC	164±83	165±85	167±79	166±79	161±86	160±86	164±81	162±77	159±82	158±81	159±85	161±79

Data are mean ± SD.