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Table 2 Participants’ demographic and clinical characteristics at baseline

From: The effect of dance mat exergaming systems on physical activity and health – related outcomes in secondary schools: results from a natural experiment

  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)
  1. Sample sizes of each variable are presented on brackets.