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. 2021 Dec 16;9(12):e28128. doi: 10.2196/28128

Table 2.

Median and IQR for all outcome variables.

Variables Group 1 Group 2 Group 3

Preintervention, median (IQR) Postintervention, median (IQR) Follow-up, median (IQR) P value Preintervention, median (IQR) Postintervention, median (IQR) Follow-up, median (IQR) P value Preintervention, median (IQR) Postintervention, median (IQR) Follow-up, median (IQR) P value
Physical activitya

MVPAa,b 40.00 (720.00) 0.00 (832.00) 360.00 (800.00) .24 300.00 (480.00) 280.00 (1140.00) 820.00 (2040.00) .24 60.00 (440.00) 250.00 (920.00) 600.00 (1890.00) .34

Walking 676.50 (792.00) 1386.00 (1798.00) 1386.00 (2178.00) .02c 198.00(903.38) 594.00 (2557.50) 693.00 (1311.75) .162 429.00 (1641.75) 643.00 (2165.63) 643.5.00 (928.13) .49
Basic psychological needs satisfaction

Autonomy 5.50 (1.83) 5.17 (1.00) 5.67 (2.00) .27 4.83 (1.83) 5.33 (1.46) 5.00 (2.08) .03c 4.83 (1.71) 5.83 (1.13) 5.67 (1.83) .005c

Competence 3.67 (2.83) 4.00 (0.83) 4.00 (1.17) .02c 3.67 (1.71) 3.75 (1.58) 4.00 (3.08) .34 3.75 (1.25) 3.67 (3.13) 3.42 (2.33) .55

Relatedness 3.00 (2.50) 3.83 (2.50) 3.89 (2.67) .01c 3.29 (2.35) 3.75 (2.58) 3.33 (2.21) .50 3.67 (1.25) 2.83 (3.83) 3.83 (3.00) .92
Motivational regulations

Amotivation 0.00 (1.00) 0.00 (0.75) 0.00 (0.75) .67 0.00 (0.50) 0.00 (0.44) 0.12 (0.94) .70 0.38 (0.94) 0.38 (1.19) 0.12 (0.90) .80

External 1.00 (2.00) 0.50 (2.25) 0.25 (1.50) .20 0.75 (1.25) 0.50 (1.25) 0.62 (1.19) .87 1.00 (0.90) 1.00 (1.19) 0.75 (2.00) .77

Introjected 2.50 (0.75) 2.00 (1.75) 2.00 (1.00) .12 2.62 (1.00) 2.50 (0.88) 2.25 (0.94) .42 2.12 (2.38) 2.00 (2.56) 1.88 (3.19) .56

Identified 2.50 (1.00) 2.75 (1.25) 2.50 (1.50) .59 2.62 (1.00) 2.62 (1.13) 2.25 (1.38) .09 2.25 (1.38) 2.25 (1.50) 2.12 (2.00) .86

Integrated 2.00 (0.75) 2.00 (1.50) 2.00 (1.25) .63 1.50 (1.31) 2.00 (1.69) 1.75 (1.44) .77 1.75 (1.88) 1.88 (2.06) 1.88 (1.81) .92

Intrinsic 2.25 (1.00) 2.75 (1.50) 2.75 (1.50) .28 2.25 (1.44) 2.62 (1.44) 2.50 (1.38) .32 2.12 (1.69) 2.12 (2.25) 2.25 (1.69) .56

aCurrent physical activity guidelines recommend at least 150 minutes of moderate intensity aerobic PA or at least 75 minutes of vigorous intensity aerobic PA, which is equivalent to at least 450 metabolic equivalent of task (MET) minutes per week to meet PA. PA has been shown to have a dose-response relationship with subsequent health-benefits, therefore higher MET minute scores are considered better.

bModerate to vigorous intensity physical activity.

cIndicates a significant within-group difference (P<.05).