Obesity of normal weight and abdominal obesity in physical exercise practitioners: "fake lean"?/OBESIDADE DO PESO NORMAL E OBESIDADE ABDOMINAL EM PRATICANTES DE EXERCICIO FISICO: OS "FALSOS MAGROS" EXISTEM?

Introduction: Although body mass index (BMI) eutrophy is desirable for decreasing cardiovascular and metabolic risk, recent research has attributed high risk in BMI eutrophic subjects, but with a high percentage of body fat (normal weight obesity) and abdominal obesity. Aim: to analyze the prevalence of normal weight obesity (NWO) and abdominal obesity (AO) in BMI eutrophic. Materials and methods: 204 volunteers (52.26 [+ or -] 14.18 years), 168 women (52.02 [+ or -] 14.27 years) and 36 men (53.39 [+ or -] 13.90) physical exercise practitioners underwent the following procedures divided in 3 phases: 1) all sample were initially submitted to bMi, percentage of body fat (%BF) and waist-height ratio (WHR) measurements; 2) only the BMI eutrophic subjects (n=83) were evaluated separately to identify the NWO and AO prevalence; 3) In the BMI eutrophic subjects, men and women over 61 and 55 years old, respectively, were excluded, and NWO and AO were repeated in the remaining subjects (n=52). Results: In the general sample, %BF was lower in men than women (18.61 [+ or -] 6.05 vs. 28.78 [+ or -] 5.24). For age, WHR and BMI, the statistical analysis showed no significant difference. In the BMI eutrophic subjects (N=83), 14.9% of the women presented NWO, representing 13.3% of the total. No man presented NWO. In this same sample, 44.4% of the men and 24.3% of the women had WHR over the optimal, representing 26.5% of the eutrophic subjects. Excluding the eutrophic subjects over 61 (men) and 55 years old (women) (N=52), 14.9% of the women presented NWO, representing 13.5% of the total. Conclusion: In BMI eutrophic subjects, 13 and 26% of the subjects presented NWO and AO, respectively. NWO was observed exclusively in women, whereas AO was more present in men. Key words: Body mass index. Anthropometry. Cardiovascular disease. Overweight. Introducao: Embora a eutrofia no indice de massa corporal (IMC) seja desejavel para diminuicao do risco cardiometabolico, pesquisas recentes tem atribuido risco elevado em sujeitos eutroficos no IMC, porem como elevado percentual de gordura corporal (%GC) (obesidade do peso normal) e obesidade abdominal (OA). Objetivo: analisar a prevalencia de obesidade do peso normal (OPN) e OA em sujeitos eutroficos no IMC. Materiais e metodos: 204 voluntarios (52,26 [+ or -] 14,18 anos), sendo 168 mulheres (52,02 [+ or -] 14,27 anos) e 36 homens (53,39 [+ or -] 13,90) praticantes de exercicio fisico participaram do estudo, que foi realizado em 3 fases