Table 2

Absolute and relative time spent in sedentary and physical activity behaviours at baseline and postintervention for control (N=17) and intervention (N=23) participants†

BaselinePostinterventionMean difference‡ (95% CI)Within-group p valueBetween-group p value (post)
Monitor wear time (min/day)0.15
 Control829.6 (93.5)869.5 (94.1)0.10
 Intervention867.1 (142.8)827.2 (71.9)0.42
Minutes sedentary (min/day)0.01**
 Control544.2 (76.9)599.7 (106.6)+55.5 (2.8 to 108.1)0.04*
 Intervention584.9 (136.1)526.1 (77.3)−58.7 (−118.4 to 0.99)0.04*
Percentage of time sedentary0.06
 Control65.7 (7.5)67.5 (8.0)−1.8 (−2.7 to 6.3)0.41
 Intervention67.6 (7.2)63.9 (7.9)−3.7 (−6.8 to −0.6)0.02*
Minutes light (min/day)0.64
 Control265.7 (84.0)262.2 (70.8)− 3.5 (−45.6 to 38.6)0.86
 Intervention263.9 (69.5)270.3 (69.5)+6.4 (−18.7 to 31.5)0.60
Percentage of time light0.16
 Control31.9 (8.1)30.3 (8.4)−1.6 (−6.0 to 2.8)0.46
 Intervention30.6 (8.2)32.7 (7.6)2.1 (−0.8 to 4.9)0.15
Minutes moderate (min/day)0.13
 Control18.6 (25.2)17.4 (23.7)−1.2 (−4.9 to 2.4)0.50
 Intervention14.5 (18.5)23.3 (28.0)+8.8 (−1.6 to 19.2)0.09
Percentage of time moderate0.06
 Control2.3 (3.2)2.0 (2.9)−0.3 (−0.7 to 0.2)0.21
 Intervention1.5 (1.5)2.8 (3.4)+1.3 (0.0 to 2.6)0.04*
Minutes vigorous (min/day)0.33
 Control1.2 (2.6)1.5 (2.7)+0.4 (−0.2 to 0.9)0.19
 Intervention2.7 (6.4)4.9 (10.9)+2.2 (−2.7 to 7.0)0.37
Percentage of time vigorous0.25
 Control0.1 (0.3)0.2 (0.3)0.0 (0.0 to 0.1)0.32
 Intervention0.3 (0.6)0.6 (1.3)+0.3 (−0.3 to 0.9)0.26
  • *p<0.05 for within-group change from baseline (paired t test).

  • **p<0.05 for between-group differences at postintervention (ANCOVA).

  • †Data presented as the mean (SD).

  • ‡Mean change from baseline (95% CI), adjusted for baseline value (ANCOVA).

  • ANCOVA, analysis of covariance.