Perfil da massa óssea em médicos : estudo de acompanhamento

Abstract

Changes in bone mass occur with aging and are related to lifestyle, such as physical activity and occupational activity professional. OBJECTIVES : Evaluate the variation in bone mass at the lumbar spine and proximal femur of São Lucas Hospital (HSL) doctors of Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS), Brazil related to the study released in 2006. METHODS : Longitudinal and observational study with male doctors. It was applied a questionnaire with data on changing lifestyle habits in relation to physical activity for the 2006 study. This study used the DXA equipment HOLOGIC WI with analysis of the lumbar spine, femoral neck and total femur. For the analysis this study used the Student t test and chi-square. Values were significant of p&#8804;0,05. RESULTS : A total of 22 physicians with an average age of 64,0±4,9 yeras. Regarding to physical activity 14 (63.6%) perform 2x/week or less and 8 (36.4%) perform physical activity greater than or equal to 3x/week. There was a gain from 2006 to 2012 in T-score of the lumbar spine of -0.26 ± 1.41 to 0.04 ± 1.47 (p = 0.015). There was no change in BMD of the lumbar spine. In the femoral neck BMD was reduced from 0.79 ± 0.10 to 0.74 ± 0.11 (p <0.001) and T-score of -1.75 ± 0.93 to -1.33 ± 0 , 82 (p <0.001) and total femur from 0.96 ± 0.10 to 0.92 ± 0.10 (p <0.001) and T-score of -0.90 ± 0.75 for -0, 64 ± 0.70 (p <0.001). There was no difference regarding the variation of BMD and frequency of weekly physical activity (&#8804; &#8805; 2x/week or 3x/week) of the values of BMD at lumbar spine (0.01 ± 0.04 vs 0.03 ± 0.09; p = 0.547), femoral neck (-0.05 ± 0.05 vs. -0.06 ± 0.06, p = 0.759) and total femur (-0.04 ± 0.04 vs. -0.06 ± 0 , 04, p = 0.256). There was an association between age and variation of total T-score of lumbar spine and proximal femur (r = 0.500, p = 0.018). CONCLUSION : Regarding the 2006 study there was a reduction in BMD of the femoral neck and total femur and increased total T-score. There was no variation in BMD in relation to physical activity weekly.