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. 2022 May 3;6(5):e37348. doi: 10.2196/37348

Table 5.

Differences in self-reported physical activity and sedentary behavior at baseline (T0), 4 weeks (T1), and 8 weeks (T2) according to level of household participation (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
Adults and children participating (n=57)

Walking (min/week) 15.282 <0.001 128.07 (131.05) 164.74 (135.44) 251.40 (303.42) .02 <.001

MPAb (min/week) 0.304 0.859 58.07 (83.23) 60.70 (87.64) 70.70 (94.38)

VPAc (min/week) 1.899 0.387 60.70 (68.27) 59.82 (79.97) 72.10 (81.96)

Total PAd (METe min/week) 5.982 0.050 1130.00 (999.47) 1268.54 (1074.55) 1683.67 (1693.29) .33 .01

Days of MVPAf≥30 min/day 4.383 0.112 2.58 (1.94) 3.17 (2.20) 3.25 (2.15)

Sitting (min/day) 11.223 0.004 360.88 (203.15) 277.02 (199.61) 280.88 (191.29) <.001 .002

Screen time (min/day) 3.362 0.186 183.51 (176.85) 136.67 (137.05) 146.67 (157.96)
Adults only participating (n=30)

Walking (min/week) 0.241 0.887 279.67 (395.30) 173.67 (190.25) 258.33 (341.85)

MPA (min/week) 2.960 0.228 66.67 (94.33) 69.67 (115.47) 129.33 (234.58)

VPA (min/week) 0.526 0.769 66.67 (83.97) 75.00 (87.40) 78.33 (155.01)

Total PA (MET min/week) 0.218 0.897 1722.90 (1779.90) 1430.43 (1475.97) 2200.50 (2827.74)

Days of MVPA ≥30 min/day 0.587 0.746 3.07 (2.03) 3.13 (1.74) 3.00 (1.70)

Sitting (min/day) 3.453 0.178 283.67 (191.93) 229.00 (152.14) 241.00 (188.14)

Screen time (min/day) 2.272 0.321 161.33 (107.63) 160.00 (129.32) 143.00 (129.51)

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.