Body composition and energy expenditure in anorexia nervosa: preliminary data of outpatients with recovering and active disease

被引：4

作者：

dos Reis, Tamara Oliveira ^{[1
,3
]}

Oliveira, Fernanda de Magalhaes ^{[4
]}

Kattah, Fabiana Martins ^{[4
]}

Pena, Natalia Fenner ^{[1
]}

Sarquis Soares, Maria Marta ^{[1
,2
]}

da Gama Torres, Henrique Oswaldo ^{[1
,2
,3
]}

机构：

[1] Univ Fed Minas Gerais, Fac Med, Adult Hlth Postgrad Program, Belo Horizonte, MG, Brazil

[2] Univ Fed Minas Gerais, Fac Med, Internal Med Dept, Belo Horizonte, MG, Brazil

[3] Univ Fed Minas Gerais, Hosp Clin, Nucleo Invest Anorexia & Bulimia NIAB, Belo Horizonte, MG, Brazil

[4] Univ Fed Minas Gerais, Escola Enfermagem, Nutr Dept, Belo Horizonte, MG, Brazil

来源：

JOURNAL OF EATING DISORDERS | 2022年 / 10卷 / 01期

关键词：

Anorexia Nervosa; Body composition; Bioelectrical impedance; BMI; Resting metabolism; Phase angle; BIOELECTRICAL-IMPEDANCE ANALYSIS; 10-YEAR FOLLOW-UP; FAT DISTRIBUTION; PHASE-ANGLE; NUTRITIONAL-STATUS; MASS INDEX; WEIGHT; BIOIMPEDANCE; MALNUTRITION; ADOLESCENTS;

D O I：

10.1186/s40337-022-00702-x

中图分类号：

B849 [应用心理学];

学科分类号：

040203 ;

摘要：

Plain English summary In recovery from anorexia nervosa, the body mass index does not reflect changes in body composition. Energy expenditure can change according to body composition in an anorexia nervosa and normal individuals. To investigate distinctive parameters in recovering Anorexia Nervosa patients, we evaluated body mass index and other indices obtained from body measurements by bioimpedance among patients with anorexia nervosa with low weight and in the weight recovery phase compared with a group of normal weight women without anorexia nervosa. In conclusion, we observed that one of these indexes, the phase angle can play an important role in the assessment of nutritional status in recovering anorexia nervosa. Background In Anorexia Nervosa (AN) recovery, body mass index (BMI) may not reflect body composition. To investigate recovery, bioelectrical impedance (BIA) parameters and energy expenditure were investigated in patients with active and recovering AN, with emphasis on phase angle (PA), a BIA parameter. Methods BMI, PA, indirect BIA parameters (fat free mass, fat mass, total body water, fat free mass index, fat mass index) and resting metabolic rate (RMR) were obtained. Data from subjects distributed to active AN (ANact, n = 9), recovered AN (ANrec, n = 9) and healthy individuals (HI) (n = 16) were compared employing univariate methods and ordinal logistic regression. Results In univariate comparison, the BMI would not distinguish recovered individuals; this distinction was observed for the PA (p = < 0,001). PA showed a good capacity to discriminate, between ANrec and HI (AUC = 0.792; CI = 0.564- 1.000; p = 0.017). In 2 models of ordinal logistic regression PA (OR = 0.123; 95% CI 0.030; 0.503 and OR = 0.091; 95% CI 0.016; 0.528) remained as a significant independent variable, indicating that increases in PA are related to higher probabilities of moving from ANact, to ANrec and to HI group. Bivariate regression indicated the presence of a relationship between PA and (R2 = 0.266, p = 0.002). Conclusions Changes in body composition and energy expenditure were observed in recovered anorexics with normal BMI. PA can play an important role in the assessment of recovering anorexic patients.

引用

页数：8

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