scholarly journals Resting Energy Expenditure in Anorexia Nervosa: Measured versus Estimated

2012 ◽  
Vol 2012 ◽  
pp. 1-6 ◽  
Author(s):  
Marwan El Ghoch ◽  
Marta Alberti ◽  
Carlo Capelli ◽  
Simona Calugi ◽  
Riccardo Dalle Grave

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/m2in 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.

2005 ◽  
Vol 152 (2) ◽  
pp. 179-184 ◽  
Author(s):  
Simone Onur ◽  
Verena Haas ◽  
Anja Bosy-Westphal ◽  
Maren Hauer ◽  
Thomas Paul ◽  
...  

Objective: We aimed to define the effect of l-3,5,3′-tri-iodothyronine (T3) on metabolic adaptation in underweight patients with anorexia nervosa (AN) as well as during weight gain. Methods: This involved clinical investigation of 28 underweight patients with AN, who were compared with 49 normal-weight controls. A subgroup of 17 patients was followed during weight gain. Resting energy expenditure was measured by indirect calorimetry. Body composition was measured by anthropometry as well as bioelectrical impedance analysis. Energy intake (EI) was assessed by a 3-day dietary record. Plasma concentrations of thyroid hormones (thyroxine (T4), T3 and thyrotropin (TSH)) were analyzed by enzyme immunoassays. Results: When compared with normal-weight women, underweight patients with AN had reduced fat mass (FM) (−71.3%), fat-free mass (FFM) (−13.1%), resting energy expenditure (REE) (−21.8%), T3- (−33.4%) and T4-concentrations (−19.8%) at unchanged TSH. REE remained reduced after adjustment for FFM (−24.6%). T3 showed a close association with REE. This association remained after adjustment of REE for FFM. Treatment of underweight AN patients resulted in a mean weight gain of 8.3 kg. This was mainly explained by an increase in FM with small or no changes in FFM. REE and T3 also increased (+9.3% and +33.3% respectively) at unchanged TSH and T4. There was a highly significant association between weight gain-induced changes in T3 and changes in adjusted REE (r = 0.78, P < 0.001, based on Pearson’s correlation). An increase in plasma T3 concentrations of 1.8 pmol/l could explain an increase in REE of 0.6 MJ/day (that is, a 32% increase in T3 was associated with a 13% increase in REE). Conclusions: Our data provide evidence that the low T3 concentrations add to metabolic adaptation in underweight patients with AN. During weight gain, increases in T3 are associated with increases in REE, which is independent of FFM. Both results are evidence for a physiologic role of T3 in modulation of energy expenditure in humans.


2000 ◽  
Vol 71 (6) ◽  
pp. 1511-1515 ◽  
Author(s):  
Christian Zauner ◽  
Bruno Schneeweiss ◽  
Alexander Kranz ◽  
Christian Madl ◽  
Klaus Ratheiser ◽  
...  

2007 ◽  
Vol 86 (4) ◽  
pp. 1009-1015 ◽  
Author(s):  
Lisa A Kosmiski ◽  
Daniel H Bessesen ◽  
Sarah A Stotz ◽  
John R Koeppe ◽  
Tracy J Horton

Metabolism ◽  
2007 ◽  
Vol 56 (2) ◽  
pp. 289-295 ◽  
Author(s):  
Lisa A. Kosmiski ◽  
Daniel H. Bessesen ◽  
Sarah A. Stotz ◽  
John R. Koeppe ◽  
Tracy J. Horton

1993 ◽  
Vol 93 (4) ◽  
pp. 434-438 ◽  
Author(s):  
Dean D Krahn ◽  
Cheryl Rock ◽  
Ronald E Dechert ◽  
Karen K Nairin ◽  
Sheryl A Hasse

PLoS ONE ◽  
2018 ◽  
Vol 13 (10) ◽  
pp. e0205293 ◽  
Author(s):  
Paolo Marzullo ◽  
Alessandro Minocci ◽  
Chiara Mele ◽  
Rezene Fessehatsion ◽  
Mariantonella Tagliaferri ◽  
...  

2003 ◽  
Vol 34 (1) ◽  
pp. 156-161 ◽  
Author(s):  
Yayoi Satoh ◽  
Toshiaki Shimizu ◽  
Tsubasa Lee ◽  
Kyoko Nishizawa ◽  
Megumi Iijima ◽  
...  

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