24-hour Patterns Of Physical Activity, Sedentary Behavior, And Sleep During A University Program For Faculty And Staff

Limited research is available with objectively measured 24-hour movement patterns (patterns) for physical activity (PA), sedentary behavior (SB), and sleep for a university PA promotion program for faculty/staff. PURPOSE: Explore patterns during a 4-week program. METHODS: Faculty/staff from the University of San Francisco and Xavier University were recruited to wear an Actigraph accelerometer for 7 weeks on the dominant wrist. Accelerometer data were converted from raw (30-33 Hz) to count data with the low frequency extension on. The Choi algorithm removed non-wear time and data were included if ≥600 min/day for ≥3 days/week. The Tracy Algorithm calculated time in bed (min/day). The Crouter Two Regression Model calculated min/day for SB (<1.5 METs), light (LPA: 1.5-2.99 METs), and moderate-to-vigorous PA (MVPA: ≥3.0 METs). ΔMVPA from baseline was calculated and grouped: increase >10%, maintain -10% to 10%, and decrease < -10%. Patterns were compared between 2 groups (increase/maintain vs. decrease according to program goals) via repeated measures (baseline, week 1-2, week 3-4, 2 weeks post) using general linear models and adjusted for age, sex, race/ethnicity, baseline wear time and minutes. RESULTS: Among the faculty/staff (n = 51, 85% with valid data), mean age was 44.6 ± 12.3 years, 82% were female, 20% identified as Hispanic, 12% as Asian, and 65% as White. During the program, the increase/maintain group (n = 32, 63%) had significantly higher MPVA, steps/day, higher METS/day (weeks 1-2, weeks 3-4) and lower SB (week 3-4 only) compared to the decrease group (n = 19, 37%). All differences attenuated at 2 weeks post. No differences were found between groups for LPA or time in bed at any time point (Table 1). CONCLUSIONS: PA programs can provide short-term success for increasing MVPA, steps/day, and reducing SB in some faculty/staff; however, changes are not maintained over time.faculty/staff; however, changes are not maintained over time. Supported by USF Faculty Development Funds