Table 4. Changes in isokinetic knee flexion muscle strength and endurance

Variables	Strength				Endurance
	Pre	Post	z	p	Pre	Post	z	p
Average speed (cm/s)	18.12±6.05	21.22±5.71*	−1.96	0.05	52.94±9.20	59.34±7.22	−1.36	0.17
Max speed (cm/s)	45.13±14.23	55.82±14.24*	−2.55	0.01	90.27±11.27	100.01±10.70	−1.01	0.31
Average force (kgf)	29.60±5.50	29.36±6.08	−0.06	0.95	16.35±3.31	16.57±3.65	1.01	0.31
Max force (kgf)	43.07±15.72	42.83±8.41	−1.24	0.21	20.85±3.90	23.73±5.13**	−2.67	0.01
Average power (watt)	518.14±135.25	606.04±132.91*	−2.19	0.03	876.26±269.12	984.51±241.20	−1.36	0.17
Max power (watt)	1,992.82±1,192.09	2,351.21±647.81*	−1.96	0.05	1,901.65±502.91	2,388.59±631.43	−1.24	0.21

Data are expressed as means ± standard deviations. Tested using Wilcoxon singed-rank test.
p<0.05.