Table 3.

Parameter Estimates From Stepwise Linear Regression Model to Predict Preferred Gait Speed

Variable	Coefficient (β)	SE	p Value
Intercept	0.596	0.115	<.001
VO2peak (ml/kg/min)	0.018	0.004	<.001
VO2 at preferred gait speed (ml/kg/min)	0.017	0.008	.033

Notes: Model R ² = .53. Other candidate determinant variables (age, leg extensor one repetition maximum, Physical Activity Scale for the Elderly score, VO₂ at 0.72 m/s relative to VO₂peak, rating of perceived exertion during preferred speed and standard speed treadmill tests, the Situational Fatigue Scale summary score, and perceived fatigue for walking for one hour) were excluded by the stepwise procedure at p ≥ .10.