Table 5.
Self-report and accelerometry-derived measures of physical activity and sedentary behavior of the AMBER cohort at baseline (N = 1,528) for the Calgary (n = 884) and Edmonton (n = 644) sites
| Physical activity measure | Total cohort | Calgary | Edmonton | |||
|---|---|---|---|---|---|---|
| N = 1528 | n = 884 | n = 644 | ||||
| Mean | SD | Mean | SD | Mean | SD | |
| Self-reported past-year physical activity | ||||||
| Total non-sedentary physical activity | ||||||
| MET-hours/day | 18.6 | 9.1 | 17.9 | 8.9 | 19.5 | 9.2 |
| Hours/day | 5.8 | 2.6 | 5.6 | 2.6 | 6.1 | 2.7 |
| Occupational activity | ||||||
| MET-hours/day | 5.9 | 6.4 | 5.6 | 6.3 | 6.3 | 6.5 |
| Hours/day | 1.8 | 1.8 | 1.7 | 1.8 | 1.9 | 1.8 |
| Household activity | ||||||
| MET-hours/day | 8.6 | 5.8 | 8.2 | 5.8 | 9.1 | 5.8 |
| Hours/day | 3.1 | 1.9 | 3.0 | 1.9 | 3.3 | 1.9 |
| Recreational activity | ||||||
| MET-hours/day | 4.1 | 3.8 | 4.1 | 3.8 | 4.1 | 3.9 |
| Hours/day | 0.9 | 0.8 | 0.9 | 0.8 | 0.9 | 0.8 |
| Self-reported sedentary time (typical week) | ||||||
| Total sitting (hours/day) | 9.4 | 3.5 | 9.3 | 3.4 | 9.3 | 3.8 |
| Recreational sitting (hours/day) | 6.0 | 2.8 | 6.0 | 2.8 | 6.0 | 2.8 |
| Occupational sitting (hours/day) | 2.0 | 2.3 | 2.0 | 2.3 | 2.0 | 2.3 |
| Travel sitting (hours/day) | 1.3 | 1.0 | 1.3 | 1.0 | 1.4 | 1.2 |
| Accelerometry-derived measures Actigraph® from Soj3xa | ||||||
| Total wear time (hours/day) | 14.0 | 1.3 | 14.0 | 1.3 | 13.9 | 1.3 |
| Total valid wear time (days) | 5.5 | 1.4 | 5.3 | 1.2 | 5.7 | 1.6 |
| Sedentary time (hours/day) | 8.5 | 1.5 | 8.5 | 1.5 | 8.5 | 1.5 |
| Light activity (hours/day) | 4.4 | 1.2 | 4.4 | 1.2 | 4.4 | 1.3 |
| Moderate activity (hours/day) | 0.9 | 0.5 | 0.9 | 0.5 | 0.8 | 0.5 |
| Vigorous activity (hours/day) | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 |
| Actigraph® from vertical axis* | ||||||
| Sedentary time (hours/day) | 8.7 | 1.5 | 8.8 | 1.5 | 8.6 | 1.4 |
| Light activity (hours/day) | 3.7 | 0.9 | 3.7 | 0.9 | 3.7 | 0.9 |
| Lifestyle MVPA (hours/day) | 1.2 | 0.5 | 1.2 | 0.6 | 1.2 | 0.5 |
| Ambulatory MVPA (hours/day) | 0.4 | 0.3 | 0.4 | 0.4 | 0.4 | 0.3 |
| activPAL® | ||||||
| Total wear time (hours/day) | 14.2 | 1.2 | 14.2 | 1.3 | 14.2 | 1.2 |
| Total valid wear time (days) | 5.9 | 1.5 | 5.8 | 1.5 | 5.9 | 1.5 |
| Sedentary time (hours/day) | 8.9 | 1.7 | 9.0 | 1.7 | 8.9 | 1.6 |
| Total steps (steps/day) | 7348 | 3109 | 7368 | 3176 | 7322 | 3021 |
| Standing time (hours/day) | 3.8 | 1.3 | 3.7 | 1.3 | 3.8 | 1.3 |
| Stepping time (hours/day) | 1.5 | 0.6 | 1.5 | 0.6 | 1.5 | 0.6 |
SD standard deviation, MET metabolic equivalent of task, MVPA moderate-to-vigorous physical activities
aTotal Actigraph® wear time and valid wear time are identical between two methods: Soj3x and vertical axis counts/minute (cpm); the cut-off points for vertical axis are sedentary as < 100 cpm, light activity as 100–760 cpm, lifestyle MVPA as ≥ 760 cpm, and Ambulatory MVPA as ≥ 2020 cpm