CHARACTERISTICS OF FAT MASS, LEAN MASS, AND BONE MINERAL DENSITY BY DUAL-ENERGY X-RAY ABSORPTIOMETRY IN PEOPLE OVER 40 YEARS OLD WITH METABOLIC SYNDROME

Abstract

Objectives: To determine the composition of lean mass (LM), fat mass (FM), and bone mineral density by Dual-energy X-ray absorptiometry (DXA) in people over 40 years old with metabolic syndrome (MetS). Subjects and methods: A cross-sectional study on 199 subjects with or without MetS (defined by the 2005 update NCEP ATP III criteria) who were examined and treated at Hai Phong Medical University Hospital from 2017 to 2022. The composition of LM, FM and bone mineral density were measured using DXA. Results: Total FM, total LM in individuals with MetS were higher than those in non-MetS (p < 0.01). FM regions (trunks, android, arms) and A/G FM ratio, LM regions (trunks, android, gynoid), and FM% regions (trunks, android) of MetS subjects were higher than those without MetS (p < 0.01). Nevertheless, legs FM, legs FM%, arms FM%, gynoid FM%, total FM %, legs LM, and arms LM were not different between both groups (p > 0.05). The bone mineral density (BMD) of people with MetS was higher than that of subjects without MetS (p < 0.05) at several positions: ribs and arms, however, stratified by BMI, there was no significant difference in BMD (p > 0.05). Conclusion: Total LM and total FM in MetS subjects were higher than in non-MetS. FM regions (arms, android, trunks) and A/G FM ratio, LM regions (trunks, android, gynoid), and FM% regions (trunks, android) of MetS subjects were higher than those without MetS. Total and regional BMD (ribs, arms) of MetS subjects were higher than those without MetS. However, there was no difference in BMD stratified by BMI between the two groups.