Table 2.
Mean scores, adjusted mean difference between intervention and control groups, and effect sizes (with 95% CIs) across physical activity dimensions at 6 and 12 weeks.
| Outcome and time point | Intervention (n=36)a, mean (95% CI) | Control (n=15)a, mean (95% CI) | Adjusted mean differencea,b (95% CI) | Effect size, Hedges g (95% CI) | |||||
| PALc,d (TEEe divided by RMRf) | |||||||||
|
|
Baseline | 1.61 (1.55 to 1.66) | 1.62 (1.55 to 1.68) | N/Ag | N/A | ||||
|
|
Week 6 | 1.62 (1.57 to 1.67) | 1.65 (1.58 to 1.72) | −0.02 (−0.10 to 0.04) | −0.2 (−0.8 to 0.4) | ||||
|
|
Week 12 | 1.67 (1.63 to 1.72) | 1.58 (1.52 to 1.64) | 0.09 (0.02 to 0.15) | 0.8 (0.2 to 1.4) | ||||
| Sedentary timeh (percentage waking day) | |||||||||
|
|
Baseline | 69 (66 to 73) | 69 (64 to 73) | N/A | N/A | ||||
|
|
Week 6 | 69 (66 to 72) | 66 (62 to 70) | 3 (−2 to 8) | 0.3 (−3 to 0.9) | ||||
|
|
Week 12 | 66 (63 to 69) | 70 (65 to 74) | −4 (−8 to 1) | −0.5 (–1.1 to 0.1) | ||||
| Moderate activityi (minutes per day) | |||||||||
|
|
Baseline | 111 (94 to 129) | 117 (99 to 135) | N/A | N/A | ||||
|
|
Week 6 | 118 (105 to 130) | 127 (107 to 148) | −10 (−28 to 8) | −0.3 (−0.9 to 0.3) | ||||
|
|
Week 12 | 132 (118 to 147) | 109 (89 to 131) | 24 (0 to 45) | 0.6 (0.0 to 1.2) | ||||
| Vigorous boutsj (minutes per week) | |||||||||
|
|
Baseline | 42 (23 to 65) | 26 (12 to 43) | N/A | N/A | ||||
|
|
Week 6 | 48 (30 to 70) | 46 (24 to 71) | 2 (−24 to 28) | 0.0 (−0.6 to 0.6) | ||||
|
|
Week 12 | 50 (30 to 73) | 33 (14 to 55) | 18 (−5 to 41) | 0.4 (−0.2 to 1.0) | ||||
| MVPAk boutsj (minutes per week) | |||||||||
|
|
Baseline | 539 (435 to 646) | 509 (400 to 622) | N/A | N/A | ||||
|
|
Week 6 | 584 (495 to 675) | 580 (441 to 725) | 4 (−126 to 136) | 0.0 (−0.6 to 0.6) | ||||
|
|
Week 12 | 658 (571 to 750) | 462 (340 to 587) | 195 (58 to 331) | 0.8 (0.2 to 1.4) | ||||
| Stepsl (steps per day) | |||||||||
|
|
Baseline | 7403 (6705 to 8093) | 7767 (6626 to 8884) | N/A | N/A | ||||
|
|
Week 6 | 8207 (7269 to 9114) | 8280 (7268 to 9114) | −73 (−1122 to 1017) | 0.0 (−0.6 to 0.6) | ||||
|
|
Week 12 | 8782 (7987 to 9656) | 7236 (6496 to 7991) | 1545 (581 to 2553) | 0.7 (0.1 to 1.3) | ||||
aCIs were verified using a bias-corrected and accelerated bootstrap with 5000 replications.
bCovariates included stratified randomization factors (BMI at baseline and sex) and baseline scores for the respective outcome variables.
cPAL: physical activity level.
dMean total daily energy expenditure divided by daily resting metabolic rate.
eTEE: total energy expenditure.
fRMR: resting metabolic rate.
gN/A: not applicable.
hPercentage of waking day.
iAll minutes ≥3 metabolic equivalents of task.
jActivity ≥6 metabolic equivalents of task (vigorous) or ≥3 metabolic equivalents of task (MVPA) accumulated in ≥10 minutes was counted.
kMVPA: moderate to vigorous physical activity.
lMean daily step count.