Table 2.
Predicted and estimated resting energy expenditure for middle-age overweight/obese individuals participating in a study comparing energy assessment methods
| Males | Females | Total | |
|---|---|---|---|
| mean ± standard deviation | |||
| MREEa | 1,873.5±309.3 | 1,524.6±226.2 | 1,615.8±292.6 |
| MRQb | 0.90±0.1 | 0.86±0.07 | 0.87±0.1 |
| MVCO2c | 237.0±58.6 | 185.6±29.3 | 199.0±44.9 |
| MVO2d | 262.3±41.1 | 215.9±33.4 | 228.0±40.9 |
| PREEe | 1,898.4±251.4 | 1,529.2±134.1 | 1,625.7±236.3 |
| MedGemf | 2,023.9±367.1 | 1,621.8±255.3 | 1,726.9±337.0 |
| Comparison of methods | mean difference | ||
| MedGem vs MREE | 150.4† | 97.2*** | 111.1*** |
| PREE vs MREE | 24.9 | 4.6 | 9.9 |
| MedGem vs PREE | 125.5 | 92.6*** | 101.2*** |
a
MREE=measured resting energy expenditure using traditional indirect calorimeter (kcal/24 h).
b
MRQ=measured respiratory quotient as determined with the traditional indirect calorimeter.
c
MVCO2=measured carbon dioxide eliminated as determined with the traditional indirect calorimeter.
d
MVO2=measured oxygen consumption as determined with the traditional indirect calorimeter.
e
PREE=predicted resting energy expenditure using the Harris-Benedict equation (kcal/24 h).
f
MedGem=use of MedGem (HealthETech) portable, handheld calorimeter to measure resting energy expenditure (kcal/24 h).
†
P=0.053.
***
P<0.001.