TABLE 3.
Anthropometry, body composition, and BMR in participants with a BMI < 25 kg/m2 before and after 15 weeks in the control and WE groups.
| Control (n = 29) | WE (n = 27) | Mean difference (95% confidence interval) | p-valueb | Hedges’ | |||||
| Before | After | p-valuea | Before | After | p-valuea | ||||
| Weight (kg) | 64.21.49 | 64.01.49 | 0.54 | 65.61.05 | 64.71.07 | 0.00 | −0.66(−1.54to0.23) | 0.14 | 0.14 |
| BMI (kg/m2) | 27.10.28 | 27.00.33 | 0.58 | 27.40.26 | 27.10.26 | 0.00 | −0.24(−0.62to0.13) | 0.19 | 0.30 |
| BF% | 35.41.29 | 34.21.38 | 0.25 | 34.61.27 | 32.91.22 | 0.00 | −0.49(−2.16to1.77) | 0.56 | 0.16 |
| FM (kg) | 22.70.97 | 21.91.09 | 0.28 | 22.60.83 | 21.20.82 | 0.00 | −0.59(−1.85to0.66) | 0.34 | 0.07 |
| FFM (kg) | 41.61.38 | 42.01.15 | 0.52 | 43.11.25 | 43.41.21 | 0.07 | 0.04(−0.91to0.99) | 0.93 | 0.37 |
| % FFM | 67.33.00 | 68.64.00 | 0.34 | 66.13.00 | 68.42.00 | 0.0005 | 0.77(−1.70to3.20) | 0.52 | 0.35 |
| WC (cm) | 86.91.63 | 87.41.65 | 0.35 | 87.00.91 | 85.01.00 | 0.0003 | −2.58(−4.19to−0.97) | 0.002 | 0.48 |
| WC/HC | 0.860.02 | 0.870.02 | 0.01 | 0.860.01 | 0.850.01 | 0.44 | −0.02(−0.04to−0.004) | 0.018 | 0.30 |
| BMR (kJ/day) | 59.82.05 | 56.32.65 | 0.07 | 58.21.87 | 63.01.73 | 0.006 | 7.82(2.99to12.65) | 0.002 | 0.59 |
| Fat oxidation rate (g/min) | 0.050.01 | 0.070.01 | 0.08 | 0.060.002 | 0.070.002 | 0.60 | 0.021(−0.073to0.102) | 0.17 | 0.11 |
Data are expressed as means ± SE and mean differences of the subsequent measurement of each variable (adjusted by its baseline) (95% confidence interval); control group (n = 29, 22 females, 7 males) and WE group (n = 27, 23 females, 4 males). Analysis was performed using repeated measure analysis of variance (ANOVA). When a significant difference was observed, a post hoc analysis using the Bonferroni adjustment was performed.
aTest for significant differences within groups.
bTest for significant differences of subsequent measurements of each variable (adjusted by its baseline) between groups.
WE, wand stretching exercise; BMR, basal metabolic rate; BMI, body mass index; BM, body mass; BF, body fat; FM, fat mass; FFM, fat free mass; WC, waist circumference; WC/HC, waist to hip circumference ratio.