Within-Day Time-Varying Associations Between Behavioral Cognitions and Physical Activity in Adults
- UNCG Author/Contributor (non-UNCG co-authors, if there are any, appear on document)
- Jaclyn Maher, Assistant Professor (Creator)
- Institution
- The University of North Carolina at Greensboro (UNCG )
- Web Site: http://library.uncg.edu/
Abstract: This study used time-varying effect modeling to examine time-of-day differences in how behavioral cognitions predict subsequent physical activity (PA). Adults (N = 116) participated in three 4-day “bursts” of ecological momentary assessment (EMA). Participants were prompted with eight EMA questionnaires per day assessing behavioral cognitions (i.e., intentions, self-efficacy, outcome expectations) and wore an accelerometer during waking hours. Subsequent PA was operationalized as accelerometer-derived minutes of moderate- or vigorous intensity PA in the 2 hr following the EMA prompt. On weekdays, intentions positively predicted subsequent PA in the morning (9:25 a.m.–11:45 a.m.) and in the evening (8:15 p.m.–10:00 p.m.). Self-efficacy positively predicted subsequent PA on weekday evenings (7:35 p.m.–10:00 p.m.). Outcome expectations were unrelated to subsequent PA on weekdays. On weekend days, behavior cognitions and subsequent PA were unrelated regardless of time of day. This study identifies windows of opportunity and vulnerability for motivation-based PA interventions aiming to deliver intervention content within the context of adults’ daily lives.
Within-Day Time-Varying Associations Between Behavioral Cognitions and Physical Activity in Adults
PDF (Portable Document Format)
573 KB
Created on 10/18/2017
Views: 1490
Additional Information
- Publication
- Journal of Sport and Exercise Psychology. 38(4): 423-434. [2016]
- Language: English
- Date: 2016
- Keywords
- exercise, motivation, ecological momentary assessment, time-varying effect models