Table 4.
Comparison of body composition and resting energy expenditure between baseline and after weight loss (n = 47 males and females, study population 2 with organ-tissue analysis).
| Before weight loss | After weight loss | |
|---|---|---|
| Age, years | 36.3 ± 6.3 | |
| Weight, kg | 105.5 ± 17.9 | 95.1 ± 16.6*** |
| BMI, kg/m2 | 35.6 ± 4.5 | 32.1 ± 4.3*** |
| FFM, kg | 58.8 ± 11.4 | 58.2 ± 10.8 |
| FM, kg | 46.8 ± 13.7 | 36.9 ± 14.5*** |
| Skeletal muscle, kg | 32.0 ± 8.1 | 27.5 ± 6.7*** |
| Organ mass, kg | 4.03 ± 0.50 | 3.84 ± 0.48*** |
| REE, MJ/day | 7.73 ± 1.24 | 7.13 ± 0.96*** |
| REEmeasured-predicted according to FFM and FM regression before weight loss, MJ/day | 0.03 ± 0.70 | −0.32 ± 0.72*** |
| REEmeasured-predicted according to organ and tissue masses, MJ/day | 0.19 ± 0.66 | 0.16 ± 0.55 |
***
P < 0.001 difference between before and after weight loss, paired t-test.
Organ mass = sum of brain, heart, liver, and kidney masses.