验证不同体重指数儿童和青少年静息能量消耗预测方程的有效性。
Validation of predictive equations for resting energy expenditure in children and adolescents with different body mass indexes.
机构信息
Faculty of Health Sciences, Department of Nutrition and Dietetics, Gazi University, Ankara, Turkey.
Faculty of Health Sciences, Department of Nutrition and Dietetics, Süleyman Demirel University, Isparta, Turkey.
出版信息
Nutr J. 2023 Aug 10;22(1):39. doi: 10.1186/s12937-023-00868-3.
BACKGROUND
Accurate estimation of resting energy expenditure (REE) in children and adolescents is important to establish estimated energy requirements. The objective of this study was to assess the validity of existing equations in literature and a newly developed equation in estimating REE in children and adolescents.
METHODS
275 participants (148 boys, 127 girls) aged 6-18 years included in the study were classified as normal-weighted, overweight, obese based on BMI z-scores for age according to WHO-2007 growth curves for 5-19 years of age. REEs were measured using an indirect calorimeter, with various equations, and a newly established equation [REE = 505.412+(24.383*FFM);Adjusted R = 0.649] were compared with REE measured using Bland-Altman and further validation parameters.
RESULTS
When the predicted REEs were compared with the measured REEs, the highest prediction accuracy was achieved using the new Eq. (64.8%) and IOM (63.8%) for normal-weight participants, Müller FFM and new Eq. (59.6%) for overweight participants and Lazzer (44.9%) for obese participants. In normal and overweight participants, lowest root mean squared error (RMSE) values were acquired from Schmelzle's equation (respectively 136.2;159.9 kcal/d), and the highest values were found in Kim's Eq. (315.2; 295.2 kcal/d respectively). RMSE value of the new equation was 174.7 kcal/d for normal-weight children and adolescents, and 201.9 kcal/d for overweight ones. In obese participants, the lowest RMSE value was obtained from Schmelzle's Eq. (305.4 kcal/d) and the new Eq. (317.4 kcal/d), while the highest value was obtained from IOM Eq. (439.9 kcal/d). RMSE was higher in obese groups compared to the other BMI groups.
CONCLUSION
Indirect-calorimeter is the most suitable method for REE measurement in especially obese children and adolescents. The new equation and Schmelzle's equation appear to be most accurate equations for normal and overweight children and adolescents.
背景
准确估计儿童和青少年的静息能量消耗（REE）对于确定估计的能量需求非常重要。本研究的目的是评估文献中现有的方程和新开发的方程在估计儿童和青少年 REE 方面的有效性。
方法
本研究纳入了 275 名年龄在 6-18 岁的参与者（男 148 名，女 127 名），根据 WHO-2007 生长曲线，按照 BMI 年龄 z 分数将参与者分为正常体重、超重和肥胖。使用间接测热法测量 REE，同时使用各种方程和新建立的方程[REE=505.412+(24.383*FFM)；调整后的 R=0.649]进行比较，并通过 Bland-Altman 分析和进一步的验证参数进行评估。
结果
当预测的 REE 与实测的 REE 进行比较时，对于正常体重的参与者，新方程（64.8%）和 IOM 方程（63.8%）的预测准确性最高，对于超重的参与者，Müller FFM 和新方程（59.6%）的预测准确性最高，对于肥胖的参与者，Lazzer 方程（44.9%）的预测准确性最高。在正常体重和超重体重的参与者中，Schmelzle 方程的均方根误差（RMSE）值最低（分别为 136.2 和 159.9 kcal/d），而 Kim 方程的 RMSE 值最高（分别为 315.2 和 295.2 kcal/d）。新方程在正常体重儿童和青少年中的 RMSE 值为 174.7 kcal/d，在超重儿童和青少年中的 RMSE 值为 201.9 kcal/d。在肥胖的参与者中，Schmelzle 方程和新方程的 RMSE 值最低（分别为 305.4 和 317.4 kcal/d），而 IOM 方程的 RMSE 值最高（439.9 kcal/d）。与其他 BMI 组相比，肥胖组的 RMSE 值更高。
结论
间接测热法是测量肥胖儿童和青少年 REE 的最适宜方法。新方程和 Schmelzle 方程似乎是正常体重和超重儿童和青少年最准确的方程。
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