Bidirectional week-to-week relationships between weekly psychological stress across multiple life domains and engagement with an exercise intervention: secondary analysis of data from a randomized trial
Secondary analysis of a randomized trial shows psychological stress affects engagement in mHealth exercise, suggesting variability in individual responses.
Key Points
Engagement with the exercise intervention showed significant autoregressive effects, indicating a consistent relationship week-to-week.
Psychological stress impacted exercise engagement in previously inactive adults, yet cross-lagged effects remained non-significant.
Analysis used a random intercept cross-lagged panel model to assess relationships over six weeks with mHealth apps.
Findings highlight the need for larger sample sizes to better understand individual variability in stress and exercise responses.