Table 2. Impact of exercise intensity on power frequency (N = 11).

	Rest	30 s	60 s	90 s	120 s
10% MVC	86.6 ± 21.85	85.6 ± 24.35	84.4 ± 25.33	79.6 ± 23.23	77.6 ± 23.96
30% MVC	93.5 ± 28.47	83.8 ± 22.19	74.5 ± 24.22	69.4 ± 27.31	59.4 ± 19.29*
50% MVC	83.0 ± 24.44	68.6 ± 19.32	60.9 ± 19.94	54.9 ± 26.46*	52.2 ± 22.25*#

Values are expressed as the mean ± SD. The median power frequency is presented in hertz. MVC, maximal voluntary contraction. *p < 0.05 compared with rest. #p < 0.05 compared with 10% MVC.