Namazi Nazli, Aliasgharzadeh Soghra, Mahdavi Reza, Kolahdooz Fariba
a Student Research Committee, Faculty of Nutrition, Tabriz University of Medical Sciences , Tabriz , IRAN.
b Nutrition Research Center, Faculty of Nutrition, Tabriz University of Medical Sciences , Tabriz , IRAN.
J Am Coll Nutr. 2016;35(2):136-42. doi: 10.1080/07315724.2014.938280. Epub 2015 Mar 31.
The aim of the present study was to determine the accuracy of commonly used predictive formulas of resting metabolic rate (RMR) compared to measured RMR in normal and overweight young females.
In this cross-sectional study, 98 female university students aged 18-30 years with body mass index 18 to 30 kg/m(2) were recruited. Anthropometric indices and body compositions were measured. RMR was measured by indirect calorimetry (FitMate, Cosmed, Rome, Italy) and estimated by 11 predictive formulas. The accuracy of the RMR formulas and mean percentage differences between estimated and measured values were calculated. Paired t test was used to compare estimated and measured RMRs.
There were no significant differences between measured and estimated RMR by the 4 commonly used formulas (Mifflin, Cunningham, and World Health Organization [WHO]/Food and Agriculture Organization [FAO]). Among all of the equations, the Mifflin formula showed the lowest bias (-2.97 ± 116.43 kcal/day) at the group level and was the most accurate formula (80.23%) in normal and overweight participants. The over- and underestimated values were about 14% and 5.5%, respectively. In normal and overweight females, Mifflin was the most accurate formula, with 75.51% and 84.61% accuracy, respectively.
Given the current lack of a standardized formula that consistently delivers accurate results, the Mifflin formula can be recommended for estimating energy requirements in normal and overweight females in clinical practice.
本研究旨在确定与正常及超重年轻女性静息代谢率（RMR）的实测值相比，常用预测公式的准确性。
在这项横断面研究中，招募了98名年龄在18至30岁、体重指数为18至30 kg/m²的女大学生。测量了人体测量指标和身体成分。通过间接测热法（意大利罗马Cosmed公司的FitMate）测量RMR，并通过11种预测公式进行估算。计算RMR公式的准确性以及估算值与测量值之间的平均百分比差异。采用配对t检验比较估算的和实测的RMR。
4种常用公式（米夫林公式、坎宁安公式以及世界卫生组织[WHO]/联合国粮食及农业组织[FAO]公式）估算的RMR与实测值之间无显著差异。在所有公式中，米夫林公式在组水平上显示出最低的偏差（-2.97±116.43千卡/天），并且在正常和超重参与者中是最准确的公式（准确率为80.23%）。高估和低估的值分别约为14%和5.5%。在正常和超重女性中，米夫林公式是最准确的公式，准确率分别为75.51%和84.61%。
鉴于目前缺乏始终能给出准确结果的标准化公式，在临床实践中，米夫林公式可被推荐用于估算正常和超重女性的能量需求。
