Table 4.

Standardized Parameter Estimates of Indirect Effects and R² value

Parameter	Total effect	Direct effect	Indirect effect
Autonomy support → SDI	0.072*	−0.053	0.125**
Task-involving climate → SDI	0.542**	0.394**	0.149**
Relatedness support → SDI	0.052	−0.042	0.094*
Ego-involving climate → SDI	−0.075*	−0.126**	0.051**
Autonomy support → MVPA	−0.133**	−0.166*	0.033
Task-involving climate → MVPA	0.177**	0.078	0.099**
Relatedness support → MVPA	−0.040	−0.006	−0.034
Ego-involving climate → MVPA	−0.006	−0.016	0.009**
Relatedness → MVPA	−0.096	−0.118*	0.021
Autonomy → MVPA	0.029	−0.001	0.029**
Competence → MVPA	0.191**	0.181**	0.010
	R2 value
Autonomy	0.548
Competence	0.300
Relatedness	0.648
SDI	0.332
MVPA	0.014

SDI self-determined motivation index, MVPA moderate-to-vigorous physical activity

^*P < .05, ^**P < .01