Relationships between physical activity and muscular strength among healthy adults across the lifespan

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Table 4 Multivariate models of correlates of upper body muscle strength among STOMP Participants (n = 412)

Muscle strength	Predictors	β	t	Partial r	r²	p
Handgrip strength	Gender	−0.715	−21.413	−0.731		<0.001
	Age	−0.187	−5.590	−0.269		<0.001
	Time in light intensity activity (min/day)	0.127	3.784	0.186		<0.001
Model summary					0.552	<0.001
Isokinetic elbow flexion 60°/s	Gender	−0.824	−33.748	−0.861		<0.001
	BMI	0.155	6.307	0.301		<0.001
	Age	−0.145	−6.032	−0.289		<0.001
	Time in light intensity activity (min/day)	0.074	3.085	0.153		0.002
Model summary					0.772	<0.001