Table 5.

Peak knee contact forces (KF) across different walking speeds.

		Regular (1.1 m/s)	Medium (1.4 m/s)	Fast (1.7 m/s)
Heel contact	Proximal-distal KF (BW)	2.12 ± 0.51	2.56 ± 0.48△△	3.49 ± 0.53∗∗
	Anterior-posterior KF (BW)	0.70 ± 0.15	0.81 ± 0.17△△	1.23 ± 0.26∗∗
	Medial-lateral KF (BW)	0.43 ± 0.09	0.45 ± 0.12	0.45 ± 0.10
Toe-off	Proximal-distal KF (BW)	3.39 ± 0.57	3.39 ± 0.49	3.41 ± 0.54
	Anterior-posterior KF (BW)	1.06 ± 0.13	1.08 ± 0.17	1.11 ± 0.26
	Medial-lateral KF (BW)	0.72 ± 0.13	0.73 ± 0.12	0.75 ± 0.16

∗∗ means the significant difference between regular and fast speeds and p < 0.01. △△ means the significant difference between medium and fast speeds and p < 0.01.