Table 2.

Spatial-temporal gait parameters and their relationship with age

			Mean (SD) *	β **	95% CI	P value
Walking speed, m/sec. †			1.10 (0.20)	−0.0125	−0.0171, −0.0090	<.001
Stride length, m ‡			1.20 (0.18)	−0.0060	−0.0090, −0.0030	<.001
Stride width, m ‡			0.11 (0.02)	0.0003	−0.0005, 0.0010	0.455
Stance time, sec. ‡			0.67 (0.08)	−0.0031	−0.0050, −0.0013	<.001
Gait phase, % gait cycle ‡
	Toe Off §		63.39 (1.64)	0.0154	−0.0375, 0.0682	0.568
	Hip §	PH1	1.55 (2.05)	0.0447	−0.0241, 0.1136	0.203
		PH2	52.90 (1.93)	−0.0395	−0.0965, 0.0174	0.174
		PH3	90.81 (4.82)	−0.0728	−0.2449, 0.0993	0.407
		PH4	98.49 (2.11)	0.0067	−0.0682, 0.0817	0.860
	Knee §	PK1	13.39 (1.99)	−0.0038	−0.0671, 0.0594	0.906
		PK2	40.21 (4.25)	−0.0136	−0.1560, 0.1289	0.852
		PK3	71.84 (1.98)	0.0087	−0.0749, 0.0575	0.797
		PK4	92.33 (6.14)	−0.0473	−0.2626, 0.1680	0.667
	Ankle §	PA1	5.72 (1.88)	−0.0871	−0.1452, −0.0291	0.003
		PA2	44.89 (3.46)	0.0218	−0.0509, 0.0945	0.557
		PA3	63.61 (4.42)	−0.0264	−0.1504, 0.0976	0.676
		PA4	83.31 (3.04)	0.0006	−0.1050, 0.1061	0.992

^*Standard Deviation

^**Estimated coefficient for the linear model

^†Linear model with age after adjusted for sex, height, weight

^‡Linear model with age after adjusted for walking speed, sex, height, weight

^§for the definitions of phases, see figure 1