Body fat estimated by equations based on anthropometric parameters correlates with bioelectrical impedance in patients undergoing bariatric surgery

Introduction: predictive equations to estimate body fat based on simple anthropometric parameters are easy use in the clinical practice. Objective: evaluate relationship between and bioelectrical impedance individuals undergoing bariatric surgery. Methods: a prospective longitudinal study carried out with Body weight, mass index, waist circumference percentage estimated by were evaluated at three moments, one month before, two six months after Data analyzed one-way ANOVA for repeated measures Holm-Sidak´s post hoc or Friedman test Tukey´s hoc, Pearson Spearman correlations, according data distribution. Significance level adopted 5%. Results: twenty-five subjects composed final sample. All reduced significantly over time (p<0.001). Except Lean et al equation before surgery, other formulas showed strong correlation all highest strength observed Gómez-Ambrosi al. equation. Conclusion: present study, used good impedance, as better option of bioimpedance assess changes patients surgery treatment severe obesity.