Table 4.

Peak sagittal plane ankle moment (Nm/kg), plantarflexion angle (degrees), and ankle power (W/kg) for two subjects while ascending stairs.

Variable	F-ratio	P-value	F-ratio	P-value
Self-selected speed	Subject 1		Subject 2
Peak ankle moment (Nm/kg)	34.21b	<0.0001	44.64a	<0.0001
Plantarflexion angle (degrees)	4.32a	<0.0001	11.14a	0.0015
Ankle power (W/kg)	13.92a,b	0.0003	34.96a,b	<0.0001
80 steps/min	Subject 1		Subject 2
Peak ankle moment (Nm/kg)	5.0a	0.028	640.27a	<0.0001
Plantarflexion angle (degrees)	302.16a	<0.0001	68484.5b	<0.0001
Ankle power (W/kg)	948.89a	<0.0001	584.59	<0.0001

Results of one-way ANOVA after Box–Cox transformation for stock vs. WFH controllers during stair ascent at self-selected speed and 80 steps/min. See Figure 6 for means ± SEM.

^aNot normally distributed;

^bVariances not equal.