Table 2 Participants’ demographic and clinical characteristics at baseline
Intervention | Control | |||||
|---|---|---|---|---|---|---|
Baseline mean ± SD (n) | Follow-up mean ± SD (n) | Difference between follow-up and baseline | Baseline mean ± SD (n) | Follow-up mean ± SD (n) | Difference between follow-up and baseline | |
Sedentary time (min.d-1) | 502.3 ± 66.5 (152) | 512.7 ± 63.5 (32) | 28.7 ± 69.3 (28) | 601.3 ± 146.0 (141) | 622.2 ± 144.3 (41) | -12.2 ± 70.2 (41) |
Sedentary time (% of wear time) | 60.7 ± 6.3 (152) | 64.9 ± 7.0 (32) | 5.8 ± 6.0 (28) | 62.9 ± 6.2 (141) | 63.9 ± 6.4 (41) | 1.8 ± 4.9 (41) |
Light physical activity (min.d-1) | 236.7 ± 44.1 (152) | 211.2 ± 41.0 (32) | -46.3 ± 43.4 (28) | 240.3 ± 47.3 (141) | 232.4 ± 46.9 (41) | -13.9 ± 39.0 (41) |
Light physical activity (% of wear time) | 31.2 ± 5.0 (152) | 27.8 ± 5.1 (32) | -4.8 ± 5.2 (28) | 30.1 ± 4.9 (141) | 28.9 ± 5.0 (41) | -1.6 ± 4.4 (41) |
Moderate to vigorous physical activity (min.d-1) | 61.3 ± 23.8 (152) | 55.9 ± 24.9 (32) | -9.3 ± 17.3 (28) | 55.7 ± 22.0 (141) | 57.8 ± 22.2 (41) | -3.4 ± 16.5 (41) |
Moderate to vigorous physical activity (% of wear time) | 8.1 ± 3.2 (152) | 7.3 ± 2.9 (32) | -1.0 ± 2.1 (28) | 6.9 ± 2.8 (141) | 7.2 ± 2.7 (41) | 0.2 ± 2.1 (41) |
VA total activity (counts min-1) (% of wear time) | 528.5 ± 171.2 (152) | 475.5 ± 147.6 (32) | -89.4 ± 110.6 (28) | 483.5 ± 143.5 (141) | 493.5 ± 200.2 (41) | -23.7 ± 129.0 (41) |
VM total activity (counts min-1) (%) | 1074.6 ± 267.8 (152) | 942.1 ± 261.3 (32) | -186.1 ± 218.7 (28) | 990.6 ± 237.5 (141) | 976.7 ± 267.3 (41) | -72.5 ± 175.5 (41) |
Weight (kg) | 45.0 ± 11.8 (186) | 52.7 ± 13.4 (117) | 7.0 ± 4.5 (117) | 43.4 ± 9.1 (92) | 52.5 ± 10.4 (72) | 8.7 ± 3.9 (72) |
Body mass index (kg.m -2) | 20.4 ± 4.2 (186) | 21.5 ± 4.4 (117) | 0.9 ± 1.5 (117) | 19.5 ± 3.3 (92) | 21.3 ± 3.7 (72) | 1.8 ± 1.4 (72) |
Percentage body fat | 23.2 ± 10.3 (186) | 23.5 ± 10.9 (117) | 0.1 ± 7.1 (117) | 21.3 ± 8.7 (92) | 23.7 ± 9.8 (72) | 2.8 ± 6.5 (72) |
Self- efficacy for physical activity | 24.3 ± 4.5 (214) | 22.8 ± 4.9 (143) | -1.1 ± 5.8 (143) | 25.5 ± 4.5 (191) | 22.5 ± 5.9 (139) | -3.1 ± 6.0 (139) |
Physical well-being | 49.3 ± 9.3 (210) | 48.1 ± 8.7 (132) | -1.2 ± 10.0 (132) | 51.8 ± 10.8 (186) | 46.8 ± 8.2 (130) | -4.9 ± 11.7 (130) |
Psychological well-being | 50.9 ± 10.9 (226) | 50.4 ± 10.7 (148) | 0.6 ± 12.7 (148) | 52.9 ± 9.1 (179) | 48.8 ± 9.3 (131) | -4.1 ± 11.0 (131) |
Autonomy and parent relation | 52.9 ± 11.8 (220) | 54.6 ± 13.2 (144) | 3.4 ± 14.3 (144) | 54.8 ± 11.1 (180) | 52.0 ± 10.9 (122) | -2.5 ± 11.7 (122) |
Peers and social support | 56.2 ± 10.6 (234) | 52.8 ± 11.5 (157) | -2.2 ± 12.4 (157) | 54.7 ± 10.6 (188) | 51.4 ± 11.0 (137) | -2.5 ± 11.6 (137) |
School environment | 56.1 ± 11.1 (234) | 50.3 ± 10.1 (136) | -6.2 ± 13.0 (156) | 55.8 ± 9.8 (189) | 48.0 ± 10.1 (156) | -7.6 ± 11.3 (136) |
20-m shuttle run test (km.h-1) | 10.0 ± 0.9 (226) | 10.1 ± 0.9 (132) | -0.1 ± 12.9 (132) | 10.3 ± 1.0 (142) | 10.3 ± 1.1 (98) | -0.3 ± 10.8 (98) |
Number of shuttles completed | 28.7 ± 16.8 (226) | 30.2 ± 16.2 (132) | -0.03 ± 0.7 (132) | 34.0 ± 18.0 (142) | 34.7 ± 19.8 (98) | -0.04 ± 0.6 (98) |
School attendance (%) | 95.6 ± 8.0 (248) | 94.8 ± 6.3 (242) | -0.8 ± 8.2 (242) | 94.2 ± 5.9 (208) | 93.9 ± 7.2 (203) | -0.2 ± 6.5 (203) |