Table 2.

Mean correlation coefficients for RL and LR groups

	All muscles	Knee	Foot clearance
Group RL
Run 1 (right)	−0.34	−0.64	−0.34
Run 2 (right)	−0.20	−0.10	−0.02
Run 3 (left)	−0.19	−0.32	−0.01
Group LR
Run 1 (left)	−0.41	−0.66	−0.25
Run 2 (left)	−0.16	−0.10	−0.04
Run 3 (right)	−0.24	−0.51	−0.06

Mean correlation coefficients between the number of steps over the obstacle and the root mean square of all muscles, the amplitudes of knee joint trajectory and the foot clearance over the obstacle of the two groups RL and LR are displayed. Group RL performed the first two runs with the right leg leading. In the third run, the left leg was leading. Group LR, vice versa.