Resting metabolic rate in six- to ten-year-old obese and nonobese children

doi:10.1016/S0022-3476(05)83535-8

The Journal of Pediatrics

Volume 122, Issue 4, April 1993, Pages 556-562

https://doi.org/10.1016/S0022-3476(05)83535-8 Get rights and content

The resting metabolic rate (RMR) and body composition of 130 obese and nonobese prepubertal children, aged 6 to 10 years, were assessed by indirect calorimetry and skin-fold thickness, respectively. the mean (±SD) RMR was 4619±449 kJ. day⁻¹ (164±31 kJ. kg body weight⁻¹. day⁻¹) in the 62 boys and 4449±520 kJ. day⁻¹ (147±32 kJ. kg body weight⁻¹. day⁻¹) in the 68 girls. Fat-free mass was the best single predictor of RMR (R²=0.64; p<0.001). Step-down multiple regression analysis, with independent variables such as age, gender, weight, and height, allowed several RMR predictive equations to be developed. An equation for boys is as follows: RMR (kJ. day⁻¹)=1287+28.6. Weight(kg)+23.6. Height(cm)−69.1. Age(yr) (R²=0.58; p<0.001). An equation for girls is as follows: RMR (kJ. day⁻¹=1552+35.8. Weight (kg)+15.6. Height (cm)−36.3. Age (yr) (R²=0.69; p <0.001). Comparison between the measured RMR and that predicted by currently used formulas showed that most of these equations tended to overestimate the RMR of both genders, especially in overweight children.

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⁺: Supported by the National Research Council-Targeted Project “Prevention and Control Disease Factors”, subproject No. 7, contract No. 91.00.164PF41.

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Resting metabolic rate in six- to ten-year-old obese and nonobese children+

Am J Clin Nutr

Am J Clin Nutr

Lancet

J Pediatr

Am J Clin Nutr

Energy and protein requirements: report of a joint FAO/WHO/UNU expert consultation

A biometric study of basal metabolism in man