Introduction . Aim of this study was to compare the resting energy expenditure (REE) measured by the Douglas bag method with the REE estimated with the FitMate method, the Harris-Benedict equation, and the Müller et al. equation for individuals with BMI < 18.5 kg/m 2 in a severe group of underweight patients with anorexia nervosa (AN). Methods . 15 subjects with AN participated in the study. The Douglas bag method and the FitMate method were used to measure REE and the dual energy X-ray absorptiometry to assess body composition after one day of refeeding. Results . FitMate method and the Müller et al. equation gave an accurate REE estimation, while the Harris-Benedict equation overestimated the REE when compared with the Douglas bag method. Conclusion . The data support the use of the FitMate method and the Müller et al. equation, but not the Harris-Benedict equation, to estimate REE in AN patients after short-term refeeding.
El Ghoch, M., Alberti, M., Capelli, C., Calugi, S., & Dalle Grave, R. (2012). Resting energy expenditure in anorexia nervosa: Measured versus estimated. Journal of Nutrition and Metabolism, 2012. https://doi.org/10.1155/2012/652932