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. 2016 Apr 21;6(4):454–461. doi: 10.1016/j.jshs.2016.04.007

Table 4.

Oxygen consumption in VT1 and VT2 before and after weight loss intervention (mean ± SD).

Overweight
 Obese
 p Observed power η2
S E SE PA S E SE PA
Male
VO2peak in VT1 (L/min) T < 0.001
T × G 0.863
T × BMI 0.177
T × G × BMI 0.013 		>0.99
0.10
0.27
0.80		 0.54
0.01
0.03
0.15
Baseline 1.2 ± 0.2 1.2 ± 0.1 1.5 ± 0.4 1.3 ± 0.2 1.6 ± 0.2 1.5 ± 0.2 1.6 ± 0.3 1.6 ± 0.2
Post-intervention 1.7 ± 0.2** 1.6 ± 0.4* 1.7 ± 0.3* 1.9 ± 0.4** 1.7 ± 0.3 1.8 ± 0.3* 2.1 ± 0.2#,** 1.8 ± 0.4*
Δ 0.5 ± 0.2 0.4 ± 0.4 0.2 ± 0.3 0.6 ± 0.3 0.1 ± 0.1- 0.3 ± 0.3 0.5 ± 0.3 0.3 ± 0.4
VO2peak in VT1 (%) T < 0.001
T × G 0.619
T × BMI 0.976
T × G × BMI 0.152		 >0.99
0.17
0.05
0.45		 0.25
0.03
0.00
0.07
Baseline 38.9 ± 3.1 37.9 ± 2.9 44.9 ± 2.2 42.6 ± 3.2 42.8 ± 2.1 46.1 ± 2.4 42.6 ± 2.3 43.7 ± 2.2
Post-intervention 46.1 ± 2.9 45.3 ± 2.7 44.1 ± 2.0 52.3 ± 2.9 45.9 ± 2.0 51.0 ± 2.2 50.9 ± 2.1 50.4 ± 2.1
Δ 7.2 ± 4.2 7.4 ± 3.9 −0.8 ± 3.0 9.7 ± 4.3 3.1 ± 2.9 4.9 ± 3.3 8.3 ± 3.1 6.7 ± 3.0
VO2peak in VT2 (L/min) T < 0.001
T × G 0.311
T × BMI 0.234
T × G × BMI 0.093		 >0.99
0.31
0.22
0.54		 0.33
0.05
0.02
0.09
Baseline 2.6 ± 0.7 2.7 ± 0.3 2.6 ± 0.5 2.6 ± 0.6 3.2 ± 0.7 2.6 ± 0.4 2.9 ± 0.5 2.9 ± 0.5
Post-intervention 3.3 ± 0.6 3.0 ± 0.5 3.2 ± 0.9 2.9 ± 0.7 3.1 ± 0.6 3.0 ± 0.4 3.5 ± 0.6 3.2 ± 0.5
Δ 0.8 ± 0.3 0.3 ± 0.5 0.6 ± 1.0 0.3 ± 0.2 −0.2 ± 0.3 0.4 ± 0.3 0.6 ± 0.6 0.2 ± 0.4
VO2peak in VT2 (%) T = 0.149
T × G 0.928
T × BMI 0.470
T × G × BMI 0.627		 0.30
0.08
0.11
0.16		 0.03
0.01
0.01
0.02
Baseline 80.4 ± 4.0 84.6 ± 3.7 80.5 ± 2.8 83.5 ± 4.1 82.5 ± 2.7 79.0 ± 3.1 79.4 ± 3.0 81.8 ± 2.8
Post-intervention 86.2 ± 5.7 84.0 ± 5.3 85.0 ± 4.0 79.7 ± 5.8 83.1 ± 3.9 85.9 ± 4.4 84.6 ± 4.2 87.6 ± 4.0
Δ 5.8 ± 7.2 −0.6 ± 6.7 4.5 ± 5.1 −3.7 ± 7.3 0.6 ± 4.9 6.9 ± 5.6 5.2 ± 5.3 5.8 ± 5.1
Female
VO2peak in VT1 (L/min) T < 0.001
T × G < 0.001
T × BMI < 0.001
T × G × BMI 0.146		 >0.99
0.98
0.98
0.46		 0.30
0.21
0.17
0.06
Baseline 1.0 ± 0.2 0.9 ± 0.2# 0.9 ± 0.2 0.9 ± 0.1 1.4 ± 0.2 1.2 ± 0.2 1.3 ± 0.2 1.2 ± 0.3
Post-intervention 1.1 ± 0.3 1.4 ± 0.3** 1.2 ± 0.4* 1.2 ± 0.2* 1.3 ± 0.3 1.3 ± 0.3 1.4 ± 0.2 1.2 ± 0.2
Δ 1 0.5 ± 0.3 0.3 ± 0.3 0.2 ± 0.1 −0.1 ± 0.1 0.1 ± 0.3 0.2 ± 0.3 0.1 ± 0.2
VO2peak in VT1 (%) T < 0.001
T × G 0.003
T × BMI 0.017
T × G × BMI 0.247		 0.98
0.91
0.68
0.36		 0.17
0.16
0.07
0.05
Baseline 48.0 ± 2.2 43.5 ± 2.0 43.8 ± 2.5 46.7 ± 2.3 54.8 ± 2.2 49.9 ± 2.0 48.8 ± 2.2 53.7 ± 2.5
Post-intervention 49.2 ± 2.6 60.0 ± 2.4** 50.0 ± 2.9* 52.7 ± 2.8 51.0 ± 2.6 53.9 ± 2.3 54.5 ± 2.6 55.3 ± 2.9
Δ 1.2 ± 3.2 16.5 ± 2.8 6.2 ± 3.5 6.0 ± 3.3 −3.8 ± 3.2 4.0 ± 2.8 5.7 ± 3.2 1.6 ± 3.5
VO2peak in VT2 (L/min) T = 0.004
T × G 0.376
T × BMI 0.105
T × G × BMI 0.167		 0.84
0.27
0.37
0.44		 0.10
0.04
0.03
0.06
Baseline 1.7 ± 0.3 1.6 ± 0.2 1.5 ± 0.2 1.7 ± 0.3 2.1 ± 0.3 2.1 ± 0.4 2.1 ± 0.3 1.8 ± 0.2
Post-intervention 1.7 ± 0.4 2.0 ± 0.3 1.8 ± 0.6 1.7 ± 0.3 2.1 ± 0.4 2.1 ± 0.4 2.2 ± 0.3 2.0 ± 0.3
Δ 0.0 ± 0.3 0.3 ± 0.3 0.2 ± 0.4 0.1 ± 0.4 −0.0 ± 0.3 −0.0 ± 0.5 0.1 ± 0.3 0.1 ± 0.1
VO2peak in VT2 (%) T = 0.836
T × G 0.966
T × BMI 0.251
T × G × BMI 0.464		 0.05
0.06
0.21
0.23		 <0.01
<0.01
0.02
0.03
Baseline 82.5 ± 2.2 82.3 ± 2.0 77.2 ± 2.5 82.5 ± 2.3 83.7 ± 2.2 85.9 ± 2.0 80.7 ± 2.2 83.3 ± 2.5
Post-intervention 80.6 ± 2.9 84.6 ± 2.6 76.2 ± 3.2 78.1 ± 3.1 85.2 ± 2.9 84.8 ± 2.6 84.4 ± 2.9 86.7 ± 3.2
Δ −1.9 ± 3.8 2.3 ± 3.4 −1.0 ± 4.2 −4.4 ± 4.0 1.5 ± 3.8 −1.1 ± 3.4 3.7 ± 3.8 3.4 ± 4.2

Note: Data in bold for the p value indicate significant difference.

Abbreviations: BMI = body mass index classification; E = endurance training group; G = intervention group; PA = physical activity recommendations group; S = strength training group; SE = combined strength + endurance training group; T = time; VO2peak = peak oxygen consumption; VT1 = aerobic ventilatory threshold; VT2 = anaerobic ventilatory threshold or respiratory compensation point physical activity.

*

p < 0.05, **p < 0.001, compared with baseline.

#

p < 0.05, compared with S group.