Table 3.

Subject-dependent regression slopes (versus stiffness) and descriptive statistics for DMAMA by locomotion mode. Subject-dependent linear regression coefficients for the effect of forefoot stiffness on DMAMA in each locomotion mode, using individual participant data. The linear fit for the effect of stiffness on DMAMA is shown for each participant. The sensitivity (percent foot length per stiffness increment), p-value, and R² value are shown for each linear regression.

		DOWN RAMP			LEVEL GROUND			UP RAMP			DOWN STAIRS			UP STAIRS
		Sensitivity to Stiffness	p-Value	R2	Sensitivity to Stiffness	p-Value	R2	Sensitivity to Stiffness	p-Value	R2	Sensitivity to Stiffness	p-Value	R2	Sensitivity to Stiffness	p-Value	R2
Participant	1	3.132	<0.001	0.533	1.963	<0.001	0.344	1.092	0.085	0.078	–2.479	0.009	0.197	–1.915	0.147	0.067
	2	4.093	<0.001	0.740	3.587	<0.001	0.873	2.994	<0.001	0.745	2.906	0.022	0.149	1.668	0.504	0.016
	3	3.258	<0.001	0.650	2.596	<0.001	0.659	3.032	<0.001	0.400	3.627	0.001	0.274	5.405	<0.001	0.299
	4	4.422	<0.001	0.438	3.824	<0.001	0.829	2.070	<0.001	0.361	4.263	0.005	0.224	0.064	0.967	<0.001