Mean percentage of time and minutes spent in sedentary and MVPA for the total sample (n = 177) and by BMI and WHtR weight status groups
Baseline | 3 mo | 6 mo | 9 mo | 12 mo | |
---|---|---|---|---|---|
Wear time (M, SD)a, min | 831.0 (78.22) | 830.7 (88.5) | 829.9 (90.9) | 822.7 (82.9) | 825.5 (86.1) |
Sedentary | |||||
Total (% M, SD) | 78.10 (5.69) | 77.85 (5.84)z | 77.92 (5.81) | 78.26 (6.03) | 78.60 (5.93)z |
Total (M, SD), min | 647.5 (64.2) | 645.4 (74.7) | 645.0 (73.2) | 641.3 (70.3) | 647.3 (71.7) |
BMI | |||||
Healthy weight | 78.29 (5.69) | 77.35 (5.73)y | 77.27 (6.09) | 77.61 (5.99) | 78.43 (5.82)y |
Overweight | 77.92 (5.72)x | 78.30 (5.93) | 78.51 (5.52) | 78.85 (6.04)x | 78.76 (6.04) |
WHtR | |||||
<0.05 | 78.37 (5.13)wv | 76.61 (5.44)w | 76.35 (5.56)v | 76.81 (5.70) | 77.50 (6.14) |
≥0.50 | 77.99 (5.91)ut | 78.34 (5.93) | 78.54 (5.82) | 78.83 (6.09)u | 79.04 (5.81)t |
MVPA | |||||
Total (% M, SD) | 1.95 (1.42)b | 2.01 (1.53)cd | 1.92 (1.54)e | 1.82 (1.37)c | 1.72 (1.38)bde |
Total (M, SD), min | 16.3 (12.1) | 16.7 (12.9) | 16.0 (13.2) | 15.0 (11.4) | 14.2 (11.4) |
BMI | |||||
Healthy weight | 2.15 (1.53) | 2.33 (1.65)f | 2.27 (1.69)g | 2.15 (1.43) | 1.96 (1.40)fg |
Overweight | 1.77 (1.29)hi | 1.72 (1.35) | 1.60 (1.33) | 1.52 (1.24)h | 1.51 (1.34)i |
WHtR | |||||
<0.05 | 2.13 (1.51)jk | 2.33 (1.64)j | 2.23 (1.69)k | 2.12 (1.42) | 1.95 (1.39) |
≥0.50 | 1.77 (1.31)lmn | 1.70 (1.36)op | 1.63 (1.34)l | 1.53 (1.26)mo | 1.51 (1.35)np |
NOTE: BMI (healthy weight: n = 86; overweight: n = 91) and WHtR (n = 50 healthy, n = 127 unhealthy). Rows with bold values identify significant (P < 0.05) weight status mean differences within each time point: t(1,176) = 2.03 to 4.16, d = 0.33 to 0.47. Columns with the same alphabet superscript identify significant (P < 0.05) time mean differences within the total sample or each weight status category: t(1,176) = 1.97–3.98, d = 0.07–0.20. Effect sizes (d) can be interpreted as: small = 0.2, medium = 0.5, and large = 0.8.
↵aAccelerometer wear time in min/d.