[Comparison of resting energy expenditure determined by indirect calorimetry and estimated by predictive formulas in women with obesity degrees I to III]

Nutr Hosp. 2013 Mar-Apr;28(2):357-64. doi: 10.3305/nh.2013.28.2.6188.
[Article in Spanish]

Abstract
in English, Spanish

Introduction: The determination of resting energy expenditure (REE) is calculated in clinical practices by predictive formulas; however the result varies among the population due to several factors.

Objective: To compare the REE determination by indirect calorimetry and by Harris-Benedict (HB), Mifflin (MF), World Health Organization (WHO), Institute of Medicine (IOM), "Formula Rápida" (FR) and Valencia (VA) formulas, in women with obesity grades I to III.

Methods: Mexican mestizo adult women were included in the study and stratified in three groups according to their body mass index (BMI). Grade I obesity (BMI 30.0-34.9, n = 42), grade II (BMI 35.0-39.9, n = 38) and grade III (BMI > 40, n = 41). REE was determined by indirect calorimetry and by the aforementioned equations. Kruskal-Wallis ANOVA and Dunn test were used for statistical comparison and p < 0.05 was accepted as a statistical difference.

Results: There were no statistical difference between the REE values estimated by formulas HB, WHO and VA regarding the CI. The accuracy obtained from these formulas was 63%, 67% and 64%, respectively, when data were analyzed in a single group. The IOM, ER and MF formulas showed statistically significant difference versus the CI and their accuracy were 58%, 53%, and 54%, respectively. In grade III obesity VA (78%) and FR (71%) accuracy were the highest obtained.

Discussion: HB, WHO and VA formulas were the best to estimate REE in Mexican women with BMI > 30. In obesity grade III FR and VA formulas showed the best performance.

Introducción: La determinación del gasto energético en reposo (GER) se calcula cotidianamente a partir de fórmulas predictivas aunque el resultado varía dependiendo de la población. Objetivo: Comparar la determinación del GER mediante calorimetría indirecta y mediante las ecuaciones Harris-Benedict (HB), Mifflin (MF), Organización Mundial de la Salud (OMS), «Institute of Medicine» (IOM), Fórmula Rápida (FR) y Valencia (VA) en mujeres con grados de obesidad I a III. Métodos: Mujeres adultas mestizas mexicanas se incluyeron en el estudio y formaron 3 grupos a partir del índice de masa corporal (IMC). Obesidad grado I (IMC 30,0-34,9; n = 42), grado II (IMC 35,0-39,9; n = 38) y grado III (IMC > 40; n = 41). Se determinó el GER mediante calorimetría indirecta y mediante las ecuaciones antes señaladas. ANOVA de Kruskal-Wallis y la prueba de Dunn se emplearon para el análisis estadístico (p < 0,05 se aceptó como diferencia). Resultados: No se observó diferencia estadística entre los valores de las fórmulas HB, OMS y VA respecto a la CI. La concordancia obtenida de dichas fórmulas fue 63%, 67% y 64%, respectivamente, al analizar los datos en un solo grupo de obesidad. Asimismo, las fórmulas IOM, ER y MF mostraron diferencia estadística significativa versus la CI, siendo la concordancia 58%, 53% y 54%, respectivamente. En el grado III de obesidad la concordancia de VA (78%) y FR (71%) fue la mayor obtenida. Discusión: Las fórmulas HB, OMS y VA fueron las mejores para estimar el GER en mujeres mexicanas con IMC>30. En el grado III VA y FR muestran el mejor desempeño.

Publication types

  • Comparative Study
  • English Abstract

MeSH terms

  • Adolescent
  • Adult
  • Aged
  • Algorithms
  • Analysis of Variance
  • Anthropometry
  • Body Mass Index
  • Calorimetry, Indirect
  • Energy Metabolism / physiology*
  • Female
  • Humans
  • Male
  • Mexico
  • Middle Aged
  • Obesity / metabolism*
  • Obesity, Morbid
  • Young Adult