Table 3.

Temporal Gait Parameters in healthy young, healthy older and PD groups.

Gait parameter	Healthy young		Healthy old		PD		Group effect
	mean	SEM	mean	SEM	mean	SEM	F	P
Walking speed (km/h)	4.16	0.12	4.00	0.11	3.97	0.12	0.84	0.44
Stride time (s)	1.10	0.02	1.09	0.01	1.06	0.02	1.45	0.24
Stride time variability (s)	0.020	0.002	0.019	0.002	0.021	0.002	0.46	0.64
Step time (s)	0.548	0.008	0.541	0.008	0.522	0.009	2.48	0.09
Step time variability (s)	0.012	0.002	0.010	0.002	0.012	0.002	0.35	0.71
Stance phase (s)	0.689	0.013	0.696	0.012	0.674	0.014	0.74	0.48
Swing phase/Single support (s)	0.404	0.007	0.381	0.006	0.382	0.007	3.79	0.03
Double support (s)	0.146	0.010	0.156	0.010	0.160	0.011	0.53	0.59