Table 2.
Differences in self-reported physical activity and sedentary behavior at baseline (T0), 4 weeks (T1), and 8 weeks (T2) (N=87).
| Variable | Friedman test | T0, mean (SD) | T1, mean (SD) | T2, mean (SD) | P value within-subject effect (time)a | ||
|
|
χ2 (df=2) | P value |
|
|
|
T0 vs T1 | T0 vs T2 |
| Walking (min/week) | 9.394 | .009 | 180.34 (262.92) | 167.82 (155.48) | 253.79 (315.23) | .21 | .005 |
| MPAb (min/week) | 1.465 | .48 | 61.03 (86.76) | 63.79 (97.55) | 90.91 (158.56) | — | — |
| VPAc (min/week) | 0.469 | .79 | 62.76 (73.62) | 65.06 (82.41) | 74.25 (111.74) | — | — |
| Total PAd (METe min/week) | 2.983 | .23 | 1334.45 (1341.31) | 1324.37 (1221.67) | 1861.88 (2150.45) | — | — |
| Days of MVPAf≥30 min/day |
1.979 | .37 | 2.74 (1.98) | 3.16 (2.04) | 3.16 (2.00) | — | — |
| Sitting (min/day) | 14.268 | <.001 | 334.26 (201.64) | 260.46 (185.15) | 267.13 (190.07) | <.001 | <.001 |
| Screen time (min/day) | 5.244 | .07 | 175.86 (156.16) | 144.71 (134.14) | 145.40 (148.01) | — | — |
aWilcoxon signed-rank tests with P<.025 (planned comparisons T0 vs T1 and T0 vs T1) considered statistically significant. The Wilcoxon signed-rank test was only undertaken when the Friedman test was significant (P<.05).
bMPA: moderate-intensity physical activity.
cVPA: vigorous-intensity physical activity.
dPA: physical activity.
eMET: metabolic equivalent.
fMVPA: moderate-to-vigorous physical activity.