Benjamin Donald Boudreaux1, Virginia M. Frederick2, Ellen M. Evans, FACSM1, Patrick J. O'Connor, FACSM1, Michael D. Schmidt1. 1University of Georgia, Athens, GA. 2Mercer University, Macon, GA.

BACKGROUND: University students often report insufficient moderate-to-vigorous physical activity (MVPA), high sedentary behavior (SED), and short/long sleep. Individually, these behaviors are associated with a range of adverse health outcomes. Persons who report two or more of these behaviors can be considered to have a poor 24-Hour Activity Profile (24-HAP) and may be at especially high risk for future health problems. The purpose of this investigation was to estimate the prevalence of poor 24-HAP among university students and to estimate the odds of having a poor profile across select demographic characteristics. METHODS: University students (n=652, 20.3±1.6yrs, 80% female) completed an online survey to assess demographics, sleep duration via the Pittsburgh Sleep Quality Index, SED via the Sedentary Behavior Questionnaire, and MVPA via the Cancer Leisure Physical Activity Questionnaire. Students were classified as having a poor 24-HAP if they met two or more of the following conditions: < 30 min/d MVPA, ≥600 min/d SED, <360min/d or >540min/d total sleep duration. Logistic regressions were mutually adjusted to predict the odds of having a poor 24-HAP by student sex, race/ethnicity, body type, and school year. RESULTS: Of the 652 participants, 52.9% had a poor MVPA profile, 30.4% had a poor SED profile, 31.7% had a poor sleep profile, and 32.2% were classified as having a poor 24-HAP. Females were more likely to have a poor 24-HAP compared to males [OR=1.94, (95% CI: 1.2, 3.1)]. Students who identified as Black non-Hispanic [OR=2.37, (95% CI: 1.3, 4.4)], Asian [OR=1.81 (95% CI: 1.1, 3.0)], and other race [OR=2.59, (95% CI: 1.3, 5.4)] were more likely to have a poor 24-HAP compared to students identifying as White-non-Hispanic. CONCLUSIONS: The prevalence of poor 24-HAP was higher among female students, those who identified as Black non-Hispanic, Asian, and other race. Future studies should incorporate larger sample sizes from diverse college and university settings and use objective measures to evaluate the validity of self-reported 24-Hour Activity Profiles.

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