Table 5.
Associations Between Physiological Response to Exercise and Next-day Exercise Levels, Mediated by Outcome Expectancy
| a Path (physiological sensation on outcome expectations) | b Path (outcome expectations on exercise) | Direct effect (c’ path) | Indirect effect | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Beta estimate (SE) | p | Beta estimate (SE) | p | Beta estimate (SE) | p | Beta estimate (SE) | p | ||
| WS Effect (Positive outcome expectation) | Piece 1 Model (Some vs. zero exercise minutes) | −0.015 (0.007) | .019 | 0.083 (0.047) | .075 | 0.008 (0.005) | .110 | −0.001 (0.001) | .162 |
| Piece 2 Model (exercise minutes)a | 0.049 (0.025) | .049 | -0.005 (0.003) | .124 | −0.001 (0.001) | .134 | |||
| WS Effect (Negative outcome expectation) | Piece 1 Model (Some vs. zero exercise minutes) | 0.036 (0.008) | <.001 | −0.014 (0.044) | .746 | 0.008 (0.005) | .110 | −0.001 (0.002) | .741 |
| Piece 2 Model (exercise minutes)a | 0.026 (0.025) | .307 | -0.005 (0.003) | .124 | 0.001 (0.001) | .339 | |||
| BS Effect (Positive outcome expectation) | Piece 1 Model (Some vs. zero exercise minutes) | −0.065 (0.016) | <.001 | 0.015 (0.040) | .704 | 0.006 (0.006) | .331 | −0.001 (0.003) | .707 |
| Piece 2 Model (exercise minutes)a | 0.043 (0.028) | .123 | 0.003 (0.004) | .464 | −0.003 (0.002) | .162 | |||
| BS Effect (Negative outcome expectation) | Piece 1 Model (Some vs. zero exercise minutes) | 0.066 (0.012) | <.001 | −0.027 (0.046) | .558 | 0.006 (0.006) | .331 | −0.002 (0.003) | .558 |
| Piece 2 Model (exercise minutes)a | −0.064 (0.034) | .061 | 0.003 (0.004) | .464 | −0.004 (0.002) | .069 | |||
All models controlled for the pre-exercise physiological state, exercise duration, participant’s weight category, baseline activity, and wave of the assessment. Bold values indicate a p value < .05.
BS between-subject; SE standard error; WS within-subject.
aExercise minutes were log-transformed.