Exercise Dose Effects on Body Fat 12 Months after an Exercise Intervention: Follow-up from a Randomized Controlled Trial
Table 3
Body composition changes (12–24 months) in the Breast Cancer Exercise Trial in Alberta, 2010–2014.
Moderate
high
Body fat measure
na
LS mean change (95% CI)b
na
LS mean change (95% CI)b
Between-group difference, high–mod (95% CI)b
P valuec
Weight (kg)
159
0.97 (0.30 to 1.64)
163
0.90 (0.23 to 1.57)
−0.08 (−0.96 to 0.81)
0.87
Body mass index (kg/m2)
159
0.45 (0.20 to 0.71)
163
0.45 (0.20 to 0.71)
0.003 (−0.33 to 0.34)
0.98
Waist circumference (cm)
159
0.86 (−0.16 to 1.87)
163
1.25 (0.24 to 2.27)
0.40 (−0.95 to 1.74)
0.56
Hip circumference (cm)
159
0.52 (−0.20 to 1.23)
163
0.79 (0.08 to 1.50)
0.27 (−0.67 to 1.22)
0.57
Waist-to-hip ratio
159
0.004 (−0.004 to 0.011)
163
0.003 (−0.004 to 0.011)
−0.0003 (−0.010 to 0.009)
0.96
Total lean mass (kg)
162
0.01 (−0.22 to 0.25)
164
−0.16 (−0.39 to 0.07)
−0.18 (−0.49 to 0.14)
0.27
Total fat mass (kg)
162
1.12 (0.60 to 1.64)
164
1.35 (0.83 to 1.87)
0.23 (−0.47 to 0.93)
0.52
Percent body fat (%)
162
1.05 (0.61 to 1.49)
164
1.26 (0.82 to 1.69)
0.22 (−0.37 to 0.82)
0.49
Subcutaneous abdominal fat area (cm3)
163
1.14 (−5.29 to 7.57)
166
3.41 (−3.02 to 9.85)
2.27 (−6.34 to 10.89)
0.60
Intra-abdominal fat area (cm2)
163
5.37 (1.85 to 8.88)
166
5.85 (2.34 to 9.36)
0.48 (−4.23 to 5.19)
0.84
Total abdominal fat area (cm2)
163
6.67 (−1.88 to 15.22)
166
9.11 (0.55 to 17.67)
2.44 (−9.02 to 13.91)
0.68
a Number of women completing measures at follow-up and end of study, for whom a change could be calculated, within each randomization group. b Least-square group mean of the high and moderate exercise groups and their between-group difference were estimated from general linear model specified as body fat change = β0 + β1 ∗ (intervention group) + β2 ∗ (body fat at 12 months) + β3 ∗ (location). cP value for the test of significance for the null hypothesis that the LS mean difference between the two intervention groups equals 0.
