BMC Sports Science, Medicine and Rehabilitation

Table 1 Multivariate regression models to predict the knee extensor moment contribution

From: The center of pressure position in combination with ankle dorsiflexion and trunk flexion is useful in predicting the contribution of the knee extensor moment during double-leg squatting

	Dominant side				Nondominant side
	ΔR²	B	β	P value	ΔR²	B	β	P value
Model 1
Ankle dorsiflexion, degrees	0.504	1.228	0.761	< 0.001	0.561	1.145	0.842	< 0.001
AP-COP, % foot length	0.248	− 0.534	− 0.500	< 0.001	0.296	− 0.499	− 0.551	< 0.001
Model 2
Trunk flexion, degrees	0.362	− 0.414	− 0.595	< 0.001	0.429	− 0.375	− 0.613	< 0.001
AP-COP, % foot length	0.171	− 0.442	− 0.414	0.006	0.109	− 0.301	− 0.332	0.023
Model 3
Ankle dorsiflexion, degrees	0.504	0.878	0.515	0.002	0.522	0.757	0.557	< 0.001
Trunk flexion, degree	0.064	− 0.211	− 0.330	0.066	0.073	− 0.203	− 0.332	0.035

Bold indicates significant predictors of the knee extensor moment contribution (% total support)
ΔR² indicates the change in R² for each step in the stepwise analysis
AP-COP anterior–posterior center of pressure

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ISSN: 2052-1847

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