Table 3.

Multiple linear regression analysis of the relationship of %FFM with PAL and protein intake.

	R2	p Value	Included Independent Variables	Standardized Coefficient (β)	p Value
Model 1	0.221	<0.001	Age	−0.167	0.176
			Sex	−0.428	0.001
Model 2	0.314	<0.001	Age	−0.059	0.632
			Sex	−0.588	<0.001
			PAL	0.357	0.011
Model 3	0.317	<0.001	Age	−0.020	0.879
			Sex	−0.407	<0.001
			MVPA	0.344	0.009
Model 4	0.552	<0.001	Age	−0.175	0.066
			Sex	−0.467	<0.001
			Protein intake	0.576	<0.001
Model 5	0.611	<0.001	Age	−0.088	0.348
			Sex	−0.593	<0.001
			PAL	0.287	0.008
			Protein intake	0.550	<0.001
Model 6	0.599	<0.001	Age	−0.070	0.485
			Sex	−0.450	< 0.001
			MVPA	0.245	0.018
			Protein intake	0.540	< 0.001

R²: total variance explained by the model. PAL: physical activity level, MVPA: moderate-to-vigorous physical activity.