Table 2.

Results of leg stiffness and XCoM theta according to the walking conditions during gait

Section	Walking conditions (W)	Heel height (H)			Source	F	P-value
		Barefoot	6 cm with heel	Total average
XCoM theta (°)	Normal	6.98±2.35	4.99±1.30	5.98±2.11	H	15.439	0.001***
	Carrier of infant	6.01±2.08	4.20±2.49	5.10±2.42	W	1.019	0.328
	Total average	6.49±2.21	4.59±1.95	5.54±2.28	H×W	0.031	0.861
Leg stiffness (dimensionless)	Normal	13.08±2.61	18.65±5.33	15.86±4.96	H	35.641	0.001***
	Carrier of infant	25.70±5.68	31.80±7.55	28.75±7.20	W	27.839	0.001***
	Total average	19.39±7.78	25.23±9.27	22.31±8.94	H×W	0.075	0.787

Values are presented as mean±standard deviation.

XCoM, extrapolated centre of mass; H, main effect of the heel height; W, main effect of the walking condition; H×W, interaction

^***P<0.001.