Journal of Obesity / 2012 / Article / Tab 2 / Clinical Study
Physical Activity Is Associated with Weight Loss and Increased Cardiorespiratory Fitness in Severely Obese Men and Women Undergoing Lifestyle Treatment Table 2 (a) Regression equations, standard errors, and explained variance in change in weight. All models are cross-validated excluding every fourth subject. Independent variables that have a significant contribution (
𝑃
<
.
0
5
) to the model are labeled† . SEE: standard error of the estimate; SECV: standard error of the cross-validation. (b) Regression equations, standard errors, and explained variance in change in cardiorespiratory fitness. All models are cross-validated excluding every fourth subject. Independent variables that have a significant contribution (
𝑃
<
.
0
5
) to the model are labeled† . SEE: standard error of the estimate; SECV: standard error of the cross-validation.
(a) Regression equation (standardized) Regression equation (actual) SEE SECV R2 Adj R2 Men Model 1
2
1
.
6
0
−
1
.
1
7
* Age − 2.28 * Baseline BMI − 1.10 * Baseline VO2max
2
1
.
6
0
−
0
.
1
4
* Age − 0.50 * Baseline BMI − 1.62 * Baseline VO2max 7.17 8.68 0.193 0.092 Model 2
2
.
6
2
−
0
.
0
3
* Duration5.76 5.62 0.478 0.412 Model 3
4
1
.
3
0
−
4
.
1
5
* Duration† − 2.82 * Intensity†
4
1
.
3
0
−
0
.
0
2
* Duration − 3.00 * Intensity5.30 5.45 0.558 0.502 Model 4
6
8
.
4
0
−
1
.
1
8
* Age† − 2.29 * Baseline BMI† − 1.11 * Baseline VO2max − 3.72 * Duration† − 2.53 * Intensity†
6
8
.
4
0
−
0
.
1
4
* Age − 0.50 * Baseline BMI − 1.62 * Baseline VO2max − 0.02 * Duration − 2.69 * Intensity4.41 5.86 0.694 0.656 Women Model 1
1
0
.
6
0
−
0
.
1
1
* Age − 3.19 * Baseline BMI† + 0.99 * Baseline VO2max
1
0
.
6
0
−
0
.
0
1
* Age − 0.60 * Baseline BMI + 2.40 * Baseline VO2max 6.38 7.85 0.208 0.173 Model 2
−
7
.
4
3
−
0
.
0
1
* Duration6.88 7.04 0.040 0.000 Model 3
0
.
9
5
−
1
.
5
7
* Duration† − 0.89 * Intensity
0
.
9
5
−
0
.
0
1
* Duration − 0.56 * Intensity6.96 7.38 0.056 0.015 Model 4
3
3
.
4
0
−
0
.
9
6
* Age − 3.97 * Baseline BMI† + 2.00 * Baseline VO2max − 2.84 * Duration† − 1.17 * Intensity
3
3
.
4
0
−
0
.
1
1
* Age − 0.74 * Baseline BMI + 4.84 * Baseline VO2max − 0.02 * Duration − 0.72* Intensity5.83 8.19 0.368 0.310
(b) Regression equation (standardized) Regression equation (actual) SEE SECV R2 Adj R2 Men Model 1
0
.
8
8
+
0
.
5
6
* Age† − 0.14 * Baseline BMI − 0.55 * Baseline
V
O
†
2
m
a
x
0
.
5
5
+
0
.
0
4
* Age − 0.02 * Baseline BMI − 0.49 * Baseline VO2max 0.56 0.58 0.404 0.165 Model 2
−
5
.
2
4
+
0
.
3
9
* Intensity0.56 0.62 0.145 0.002 Model 3
−
8
.
8
5
+
0
.
1
0
* Duration + 0.38 * Intensity†
−
5
.
4
7
+
0
.
0
0
* Duration + 0.39 * Intensity0.61 0.59 0.156 0.015 Model 4
−
1
9
.
0
0
+
0
.
7
3
* Age† + 0.33 * Baseline BMI† − 1.01 * Baseline
V
O
†
2
m
a
x
+ 0.09 * Duration + 0.71 * Intensity†
−
1
1
.
7
+
0
.
0
5
* Age + 0.04 * Baseline BMI − 0.90 * Baseline VO2max + 0.00 * Duration + 0.72 * Intensity0.35 0.62 0.816 0.677 Women Model 1
3
.
4
6
−
0
.
1
5
* Age† + 0.14 * Baseline BMI − 0.63 * Baseline
V
O
†
2
m
a
x
1
.
5
1
−
0
.
0
1
* Age + 0.01 * Baseline BMI − 0.66 * Baseline VO2max 0.36 0.41 0.342 0.310 Model 2
−
2
.
3
9
+
0
.
1
8
* Intensity0.35 0.34 0.375 0.344 Model 3
−
4
.
8
6
−
0
.
1
2
* Duration + 0.58 * Intensity†
−
2
.
1
2
−
0
.
0
0
* Duration + 0.17 * Intensity0.36 0.36 0.367 0.336 Model 4
−
3
.
9
3
−
0
.
1
5
* Age + 0.25 * Baseline BMI† − 0.47 * Baseline
V
O
†
2
m
a
x
+ 0.12 * Duration + 0.56 * Intensity†
−
1
.
7
1
−
0
.
0
1
* Age + 0.02 * Baseline BMI − 0.50 * Baseline VO2max + 0.00 * Duration + 0.16 * Intensity0.29 0.32 0.606 0.564
