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Table 3 Mean (95% confidence interval) for cardiorespiratory fitness and muscle strength among participants stratified by study arm at baseline and follow-up.

From: The effect of a school-based intervention on physical activity, cardiorespiratory fitness and muscle strength: the School in Motion cluster randomized trial

  PAL-intervention DWBH-intervention Control
Baseline Follow-up Baseline Follow-up Baseline Follow-up
Cardiorespiratory fitness (m) 894 (869, 919) 925 (900, 950) 909 (883, 934) 909 (883, 935) 928 (903, 954) 940 (915, 966)
Handgrip (kg) 30 (28, 32) 32 (30, 34) 30 (28, 30) 32 (30, 34) 29 (27, 31) 32 (30, 34)
Standing broad jump (cm) 168 (166, 171) 176 (173, 179) 171 (169, 174) 178 (175, 181) 172 (170, 175) 179 (176, 181)
Sit, ups (n) 18.3 (17.4, 19.2) 19.6 (18.7, 20.5) 18.3 (17.4, 19.2) 18.9 (218.0, 19.9) 19.4 (18.5, 20.3) 20.1 (19.2, 21.1)
  1. PAL Physically active learning; DWBH Don’t Worry – Be Happy. All analyses are adjusted for gender, school cluster, class cluster and subject ID as random effect