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. 2018 Jul 30;9:1151. doi: 10.3389/fpsyg.2018.01151

Table 2.

Results of the cross-sectional test for mediation predicting MVPA (N = 142).

5000 sample bootstrapping
Predictors b (SE) t Score p-value b (SE) 95% BCa CI
Step One (pathway a); Dependent Variable = Intrinsic Motivation
Constant 0.03 (0.32) 0.09 0.92
Gender –0.20 (0.20) –0.14 0.88
VO2 L/min 0.79 (0.32) 2.43 0.01
FS 0.25 (0.05) 4.60 0.0000

Step Two (paths b and c′); Dependent Variable = Time One MVPA
Constant 18.40 (4.90) 3.75 0.000
Gender –12.36 (3.09) –3.99 0.000
VO2 L/min 9.05 (5.01) 1.80 0.07
FS 0.60 (0.88) 0.68 0.49
IM 3.81 (1.28) 2.97 0.003
Indirect effect 0.09 (0.03) [0.038, 0.177]

VO2 L/min, cardiorespiratory fitness; FS, affective response to exercise; IM, intrinsic motivation; MVPA, minutes per day of moderate-to-vigorous physical activity.