The results of the model with negative affect as the dependent variable revealed that threat
appraisals were significantly related with negative affect while day and exercise were not.
Interestingly, the interaction of exercise and threat revealed a significant and positive association
with negative affect while all other interaction terms were not significant suggesting that the
exercise/negative affect relationship was moderated by threat appraisal. The simple slope and
region of significance were calculated with 1.90, 4.46, and 7.02 (M71 SD) representing
meaningful conditional values for low, average, and high threat. This analysis revealed that
exercise was significantly associated with decreased negative affect when threat appraisal was low
(o ¼ 2:06, tð54Þ ¼ 25:26, po:001), while marginally associated with increased negative affect
when threat appraisal was high (o ¼ :12, tð54Þ ¼ 1:97, p ¼ :054). Furthermore, the exercise simple
slope was significantly negative when threat appraisal was between 0 and 2.69, while significantly
positive when threat appraisal was between 7.15 and 9.00. Taken together, our results indicate
that exercise was associated with reductions in negative affect when academic stressors were
mildly threatening, while associated with increases in negative affect when stressors were highly
threatening. The effect size estimates or R-squared values were .22 for the threat/negative affect
relationship and .07 for the exercise/threat interaction
The results of the model with negative affect as the dependent variable revealed that threatappraisals were significantly related with negative affect while day and exercise were not.Interestingly, the interaction of exercise and threat revealed a significant and positive associationwith negative affect while all other interaction terms were not significant suggesting that theexercise/negative affect relationship was moderated by threat appraisal. The simple slope andregion of significance were calculated with 1.90, 4.46, and 7.02 (M71 SD) representingmeaningful conditional values for low, average, and high threat. This analysis revealed thatexercise was significantly associated with decreased negative affect when threat appraisal was low(o ¼ 2:06, tð54Þ ¼ 25:26, po:001), while marginally associated with increased negative affectwhen threat appraisal was high (o ¼ :12, tð54Þ ¼ 1:97, p ¼ :054). Furthermore, the exercise simpleslope was significantly negative when threat appraisal was between 0 and 2.69, while significantlypositive when threat appraisal was between 7.15 and 9.00. Taken together, our results indicatethat exercise was associated with reductions in negative affect when academic stressors weremildly threatening, while associated with increases in negative affect when stressors were highlythreatening. The effect size estimates or R-squared values were .22 for the threat/negative affectrelationship and .07 for the exercise/threat interaction
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