The Main and Interactive Effects of Biological Maturity and Relative Age on Physical Performance in Elite Youth Soccer Players

Table 3

Summary of hierarchical regression analysis for variables predicting 5 m (s) sprint time.

Variable	Model 1			Model 2
	B	SE B	β	B	SE B	β
Maturity status (MS)	−0.03	0.01	−0.35	−0.07	0.03	−0.74
Relative age (RA)	−0.02	0.02	−0.10	−0.01	0.02	−0.05
Interaction MS × RA				0.04	0.30	0.42
R^2	0.13			0.15
F for change in R^2	5.93			4.57

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