Application of body adiposity, body shape, relative fat mass and body roundness indexes in the evaluation of body adiposity and cardiometabolic health in adults.

• Grant number: 23/07121-0
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: June 01, 2023
• End date: December 31, 2024
• Field of knowledge: Health Sciences - Medicine - Medical Clinics
• Principal Investigator: Bruno Geloneze Neto
• Grantee: Mila Medina Aguiar Rangel
• Host Institution: Faculdade de Ciências Médicas (FCM). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil
• Associated research grant: 13/07607-8 - OCRC - Obesity and Comorbidities Research Center, AP.CEPID

Abstract

Introduction: The increase in the prevalence of obesity is alarming and represents one of the main public health problems. Considering the metabolic complications associated with obesity, the importance of an accurate, practical and accessible body composition assessment at different levels of health care increases. For decades, body mass index (BMI) has been the main indicator for measuring cardiometabolic risk and obesity. However, it is, in essence, an indicator of excess weight, which does not assess body composition and does not identify the location of excess adiposity. New body adiposity indices (body adiposity index - BAI, body shape index - BSI, relative fat mass index - RFM - and body roundness index - BRI - have been proposed to replace BMI alone or even to replace the waist circumferencE (WC) and waist-to-hip ratio (WHR) in order to improve the identification of the body adiposity profile. Objective: To assess whether BAI, BSI, RFM and BRI differ from traditional anthropometric markers (BMI, WC and WHR) in identifying body adiposity according to DXA and in screening for an unfavorable cardiometabolic profile in adults. Methods: This is a cross-sectional study, with a convenience sample of 300 participants of both sexes, aged between 18 and 65 years and BMI between 18.5 and 45 kg/m². Anthropometric assessment will be performed (weight, height, waist and hip circumferences), calculation of BMI, WHR, BAI, BSI, RFM and BRI, assessment of body composition by DXA, and assessment of cardiometabolic health. Perspectives: The findings will contribute to elucidate whether there is superiority of the BAI, BSI, RFM and BRI in relation to traditional anthropometric markers, contributing to the search for accurate tools applicable to clinical practice, from the point of view of execution and financial cost for evaluation adiposity and metabolic and cardiovascular risk.