Table 4.

Kinetic Data

	Kinetic data
	PVD (1)			TRA (2)			AB (3)			Significance
	Slow	Freely-selected	Fast	Slow	Freely-selected	Fast	Slow	Freely-selected	Fast	Freely-selected	Matched
First peak vertical GRF (BW)	1.04	1.06	1.10	1.06	1.15	1.32	1.05	1.12	1.33	1–2
Peak-to-peak fore-aft GRF (BW)	0.12	0.16	0.21	0.17	0.29	0.41	0.24	0.39	0. 55	1–2, 1–3	1–3, 2–3
Peak ankle plantarflexion moment (Nm/kg)	1.01	1.08	1.14	1.04	1.14	1.23	1.28	1.39	1. 62	1–3, 2–3	1–3, 2–3
Peak ankle dorsiflexion moment (Nm/kg)	0.14	0.17	0.20	0.15	0.21	0.26	0.10	0.15	0.15	2–3	1–3, 2–3
Peak positive ankle power (watt/kg)	0.16	0.25	0.33	0.27	0.50	0.73	1.26	2.37	3.73
Peak negative ankle power (watt/kg)	0.46	0.72	0.89	0.53	0.88	1.38	0.71	0.87	0.97	1–3, 2–3	1–3, 2–3
Peak positive hip power (watt/kg)	0.48	0.71	1.11	0.50	1.18	1.98	0.50	1.19	1. 18
Peak negative hip power (watt/kg)	0.18	0.26	0.41	0.23	0.55	1.04	0.23	0.54	2.13

PVD (1) = peripheral vascular diseases subjects, group 1; TRA (2) = trauma subjects, group 2; AB = Able-bodied subjects, group 3. “Normal” and “Matched” in Significance section indicate significant differences for freely-selected (i.e., normal) walking speed comparisons and matched walking speed comparisons (shaded) respectively. “1–2”, “1–3” and “2–3” are used to indicate that the differences in the gait parameter between the respective groups were significant. There is no p-value between 0.1 and 0.05.