RELATIONSHIP BETWEEN PRE-SARCOPENIA, SARCOPENIA AND BONE MINERAL DENSITY IN ELDERLY MEN OF A COMMUNITY IN BRASILIA-DF, BRAZIL

Objective: analyze the influence of sarcopenia in bone health of elderly men. Subjects and methods: This cross-sectional study evaluated 198 men aged over 60 years. Body composition was measured by dual energy X-ray absorptiometry (DXA). The BMD was measured at the femoral neck, total hip, lumbar spine and ultra-distal radius. The diagnosis of abnormal BMD was defined for men who presented densitometric diagnosis of osteopenia or osteoporosis. The pre-sarcopenia and sarcopenia were defined according to the European Working Group on Sarcopenia in Older People (EWGSOP). Results: the group diagnosed with normal BMD, compared to the group of abnormal BMD, have significantly higher body weight, body mass index, grip strength, lean mass, fat mass and relative appendicular skeletal muscle mass (RASM). However, after multiple linear regression analysis we found that only the RASM, lean mass and grip strength in the dominant influenced the variability of the BMD after adjustment for age and weight. Regression analyzes showed that the increase in appendicular lean mass present a smaller risk for abnormal BMD diagnostic. The Regression analyzes showed that elderly men diagnosed with pre-sarcopenia and sarcopenia have greater risk to present abnormal BMD. Conclusion: We concluded that pre-sarcopenia and sarcopenia provide a greater risk for abnormal BMD. The lean mass, compared to fat mass, has a greater positive influence on the BMD of elderly men. This result suggests the importance of the increase in lean mass for the bone health of elderly men.