OBJECTIVES: Verify the physical activity level (PAL), to what extent each body composition component and age influence bone density (BD). METHODS: Samples of 22 men and 42 women (21-51 years) classified with recommended and not recommended PAL for health. The femur's BD measured using DXA. RESULTS: Using a analyzing the stepwise linear regression (p < or = .05), the age explained negatively BD for all groups, except men with recommended PAL. Among women group with not recommended PAL, the relative fat (%F) and body fat (BF) explained the BD increasing to 0.007 g/cm(2) per BF kilogram in all regions of interest in the femur. CONCLUSION: The BD in Ward's area has been mostly influenced by age in women. The FM and %F have positive influence on BD among women with low PAL.
OBJECTIVES: Verify the physical activity level (PAL), to what extent each body composition component and age influence bone density (BD). METHODS: Samples of 22 men and 42 women (21-51 years) classified with recommended and not recommended PAL for health. The femur's BD measured using DXA. RESULTS: Using a analyzing the stepwise linear regression (p < or = .05), the age explained negatively BD for all groups, except men with recommended PAL. Among women group with not recommended PAL, the relative fat (%F) and body fat (BF) explained the BD increasing to 0.007 g/cm(2) per BF kilogram in all regions of interest in the femur. CONCLUSION: The BD in Ward's area has been mostly influenced by age in women. The FM and %F have positive influence on BD among women with low PAL.
Authors: Vanessa Ribeiro Dos Santos; Diego Giulliano Destro Christofaro; Igor Conterato Gomes; Jamile Sanches Codogno; Lionai Lima Dos Santos; Ismael Forte Freitas Júnior Journal: Rev Bras Ortop Date: 2013-12-25