Exercise Dose Effects on Body Fat 12 Months after an Exercise Intervention: Follow-up from a Randomized Controlled Trial
Table 2
Body composition changes (0–24 months) in the Breast Cancer and Exercise Trial in Alberta, 2010–2014.
Moderate
high
Body measure
na
LS mean change (95% CI)b
na
LS mean change (95% CI)b
Between-group difference, high–moderate (95% CI)b
P valuec
Total fat mass (kg)
164
−0.42 (−1.02 to 0.19)
166
−1.12 (−1.72 to −0.51)
−0.70 (−1.50 to 0.11)
0.09
Weight (kg)
163
−0.79 (−1.57 to −0.02)
165
−1.81 (−2.58 to −1.03)
−1.02 (−2.04 to 0.01)
0.05
Height (cm)
163
−0.14 (−0.32 to 0.05)
165
0.01 (−0.17 to 0.20)
0.15 (−0.10 to 0.40)
0.23
Body mass index (kg/m2)
163
−0.25 (−0.55 to 0.05)
165
−0.66 (−0.97 to −0.36)
−0.42 (−0.82 to −0.02)
0.04
Waist circumference (cm)
163
−3.73 (−4.82 to −2.64)
165
−5.00 (−6.09 to −3.90)
−1.26 (−2.72 to 0.19)
0.09
Hip circumference (cm)
163
−1.56 (−2.32 to −0.79)
165
−1.70 (−2.47 to −0.93)
−0.14 (−1.16 to 0.87)
0.78
Waist-to-hip ratio
163
−0.023 (−0.030 to −0.016)
165
−0.033 (−0.040 to −0.026)
−0.010 (−0.019 to −0.0002)
0.05
Total lean mass (kg)
164
−0.22 (−0.50 to 0.06)
166
−0.18 (−0.46 to 0.10)
0.05 (−0.33 to 0.42)
0.81
Percent body fat (%)
164
−0.40 (−0.89 to 0.08)
166
−0.98 (−1.47 to −0.50)
−0.58 (−1.22 to 0.06)
0.08
Subcutaneous abdominal fat area (cm2)
163
−22.20 (−29.34 to −15.05)
166
−32.18 (−39.30 to −25.06)
−9.99 (−19.52 to −0.45)
0.04
Intra-abdominal fat area (cm2)
163
−7.35 (−11.12 to −3.58)
166
−8.04 (−11.81 to −4.27)
−0.70 (−5.75 to 4.36)
0.79
Total abdominal fat area (cm2)
163
−29.43 (−39.11 to −19.75)
166
−40.42 (−50.08 to −30.75)
−10.99 (−23.93 to 1.95)
0.10
a Number of women completing adiposity measures at baseline and 24-month follow-up, 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 baseline) + β3 (location). Measurements at 12 months were ignored. cP value for the test of significance for the null hypothesis that the LS mean difference between the two intervention groups equals 0. Boldface indicates statistical significance ( or a 95% confidence interval that does not include zero).
