Application of body mass index adjusted for fat mass (BMIfat) obtained by bioelectrical impedance in adults.

摘要: Introduction: Body mass index (BMI) has been one of the methods most frequently used for diagnose obesity, but it isn’t consider body composition. Objective: This study intends to apply new adiposity index, BMI adjusted fat (BMIfat) developed by Mialich et al. (2011), in a adult Brazilian sample. Methods: A cross-sectional with 501 individuals both genders (366 women, 135 men) aged 17 38 years and mean age was 20.4 ± 2.8 years, weight 63.0 13.5 kg, height 166.9 9.0 cm, 22.4 3.4 kg/m2. Results discussion: High satisfactory R2 values were obtained, i.e., 91.1%, 91.9% 88.8% sample as whole men respectively. Considering this BMIfat ranges, follows: 1.35 1.65 (nutritional risk malnutrition), > ≤2.0 (normal weight) 2.0 (obesity). The had more accurate capacity detecting obese (0.980. 0.993, 0.974) considering women men, respectively, compared traditional (0.932, 0.956, 0.95). Were also defined cut-off points classification i.e.: 25.24 kg/m2 28.38 Conclusion: applied present population can be adopted clinical practice. Further studies are needed determine its application different ethnic groups compare others previously described scientific literature.