Table 4.

The three-step length estimation models using age, height, BFM, and RMS value at maximal strength knee flexion.

Model	Variables	R2	Adjusted R2	Cp	AIC	BIC	Regression Coefficient	p-Value
	RMS at maximal strength knee flexion	0.244	0.235	7.28	642.18	644.14	0.018	<0.001
1	height						0.23	<0.001
	(constant)						19.506	0.023
	Age	0.198	0.185	3.26	654.80	657.02	−0.115	0.008
2	Height						0.238	<0.001
	BFM						−0.235	0.003
	(constant)						35.435	<0.001
3	Age	0.158	0.148	4.43	661.61	663.66	−0.109	0.013
	Height						0.251	<0.001
	(constant)						28.444	0.005

RMS, root mean square; BFM, body fat mass; C_p, Mallows’ Cp; AIC, Akaike information criterion; BIC, Bayesian information criterion.