New predictive equations for estimating resting energy expenditure in subjects with normal weight and overweight.
Nutrition
; 84: 111105, 2021 04.
Article
em En
| MEDLINE
| ID: mdl-33477001
ABSTRACT
OBJECTIVE:
The aim of this study was to develop and validate new predictive equations for estimating resting energy expenditure (REE) in subjects with normal weight and overweight, considering anthropometric parameters as well as raw variables from bioimpedance analysis (BIA).METHODS:
Adult participants with normal weight and overweight were recruited and randomly split into calibration and validation groups. Indirect calorimetry (IC) and BIA were performed in all subjects. New predictive equations were developed using the following models model 1 with age, weight, stature, and body mass index (BMI) as predictors; and model 2 model 1 + raw BIA variables (bioimpedance index and phase angle). The accuracy of the new equations at both the group (bias) and individual (within ±10%) levels was tested in the validation group. Three published predictive equations were also compared, with the REE values measured by IC.RESULTS:
A total of 2483 adults were included for developing and validating the new equations. All selected formulas, including the new ones, showed a bias of <5% in estimating REE at the group level. Accuracy at the individual level was slightly higher for the new equations, especially for the equation based on raw BIA variables (men = 70.3%; women = 72.3%).CONCLUSIONS:
Compared to the equations in the literature, the new equations showed good accuracy at both the group and individual levels, with a slight improvement in individual accuracy for the formula including raw BIA variables. However, future research is required to verify the role of the raw BIA variables in predicting REE in subjects with normal weight and overweight.Palavras-chave
Texto completo:
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Base de dados:
MEDLINE
Assunto principal:
Sobrepeso
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Obesidade
Tipo de estudo:
Health_economic_evaluation
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Prognostic_studies
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Risk_factors_studies
Limite:
Adult
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Female
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Humans
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Male
Idioma:
En
Ano de publicação:
2021
Tipo de documento:
Article