Nutritional Sciences Research Group, Department of Agricultural Economics and Extension, 37612The University of the West Indies, St Augustine, Trinidad and Tobago.
Nutr Health. 2021 Mar;27(1):105-121. doi: 10.1177/0260106020966235. Epub 2020 Oct 22.
Over 50% of adults in Latin America and the Caribbean have a body mass index (BMI) ≥ 25 suggesting excess energy intakes relative to energy expenditure. Accurate estimation of resting metabolic rate (RMR), the largest component of total energy requirements, is crucial to strategies aimed at reducing the prevalence and incidence of overweight and obesity.
We evaluated the accuracies of established and locally developed RMR prediction equations (RMR) among adults.
Four hundred adult volunteers ages 20 to 65 years had RMR measured (RMR) with a MedGem® indirect calorimeter according to recommended procedures. RMR were compared to RMR with values ± 10% of RMR deemed accurate. Anthropometry was measured using standard procedure. Linear regression with bootstrap analyses was used to develop local RMR equations based on anthropometric and demographic variables. The University of the West Indies Ethics Committee approved the study.
Males had higher mean absolute RMR ( < 0.001) but similar mean age-adjusted measured RMR per kg of body (20.9 vs. 21.5 kcals/day; = 0.1) to females. The top performing established anthropometry-based RMR among participants by sex, physical activity (PA) level and BMI status subgroups were Mifflin-St Jeor, Owen, Korth, Harris-Benedict, and Livingston, while Johnstone, Cunningham, Müller (body composition (BC)), Katch and McArdle, Mifflin-St Jeor (BC) were the most accurate BC-based RMR. Locally developed RMR had accuracies comparable to their top-ranked established RMR counterparts.
Accuracies of established RMR depended on habitual PA level, BMI status, BC and sex. Furthermore, locally developed RMR provide useful alternatives to established RMR.
拉丁美洲和加勒比地区超过 50%的成年人身体质量指数（BMI）≥25，这表明相对于能量消耗，能量摄入过多。准确估计静息代谢率（RMR）是减少超重和肥胖发生率的策略的关键，RMR 是总能量需求的最大组成部分。
我们评估了成人中已建立和本地开发的 RMR 预测方程（RMR）的准确性。
400 名 20 至 65 岁的成年志愿者根据推荐程序使用 MedGem®间接量热仪测量 RMR（RMR）。将 RMR 与 RMR 进行比较，RMR 的 ± 10%被认为是准确的。使用标准程序测量人体测量学。使用线性回归和引导分析，根据人体测量学和人口统计学变量开发本地 RMR 方程。西印度群岛大学伦理委员会批准了该研究。
男性的平均绝对 RMR 更高（<0.001），但每公斤体重的平均年龄调整后的测量 RMR 相似（20.9 与 21.5 千卡/天；=0.1）。男女分组的表现最好的基于人体测量学的 RMR 是 Mifflin-St Jeor、Owen、Korth、Harris-Benedict 和 Livingston，而 Johnstone、Cunningham、Müller（身体成分（BC））、Katch 和 McArdle、Mifflin-St Jeor（BC）是最准确的 BC 基础 RMR。本地开发的 RMR 与他们排名最高的已建立的 RMR 具有可比的准确性。
已建立的 RMR 的准确性取决于习惯性 PA 水平、BMI 状态、BC 和性别。此外，本地开发的 RMR 提供了对已建立的 RMR 的有用替代方案。
