Table 2.

Thigh muscle strength and cross-sectional areas and the $\dot{V}{\text{O}}_{2\text{peak}}$

	PLG (n = 16)		DTG (n = 14)		P value
	Pre	Post	Pre	Post	Group	Time	G × T
FEXT (Nm)	111 ± 6	113 ± 5	107 ± 9	112 ± 10	NS	NS	NS
FFLX (Nm)	54 ± 2	56 ± 2	61 ± 3	59 ± 3	NS	NS	NS
M. rectus femoris (cm2)	4.1 ± 0.3	4.5 ± 0.2**	4.6 ± 0.3	4.9 ± 0.2**	NS	0.004	NS
M. hamstrings (cm2)	20.8 ± 0.6	21.2 ± 0.7	21.1 ± 1.0	22.0 ± 0.8*	NS	0.037	NS
$\dot{V}{\text{O}}_{2\text{peak}}$ (ml/min)	1,345 ± 74	1,353 ± 61	1,367 ± 45	1,382 ± 66	NS	NS	NS
PR peak (beats/min)	144 ± 6	153 ± 7	156 ± 4	155 ± 4	NS	NS	NS

The values are the mean ± SE

Significant differences from the pre-training values, *P < 0.05 and **P < 0.01

F_EXT isometric knee extension force, F_FLX isometric knee flexion force, M. rectus femoris rectus femoris muscle tissue area, M. hamstrings hamstrings muscle tissue area, $\dot{V}{O}_{2peak}$ peak aerobic capacity for walking, PR peak pulse rate at $\dot{V}{O}_{2peak}$, G × T interactive effects of group (G; PLG and DTG) and time (T; pre and post) on the variables by two-way ANOVA, NS not significantly different