Journal
JOURNAL OF NUTRITION HEALTH & AGING
Volume 25, Issue 1, Pages 71-76Publisher
SPRINGER FRANCE
DOI: 10.1007/s12603-020-1452-y
Keywords
Aging; body composition; bone diseases; bone density
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Funding
- Fundacao de Amparo a Pesquisa de Alagoas
- State Health Secretariat of Alagoas
- Brazilian Ministry of Health
- Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior - Brasil (CAPES) [001]
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The study identified a positive association between higher body weight, BMI, AC, %BF, and adequate serum vitamin D levels with increased bone mineral density. In older adults, BMI and serum 25(OH)-D levels were protective factors against osteopenia/osteoporosis.
Purpose To identify an association between bone mineral density (BMD) and nutritional status, body composition and bone metabolism in older patients. Methods Cross-sectional study, involving older adults, with osteopenia/osteoporosis and with normal BMD. The mineral density of the lumbar spine from L1 to L4 and the proximal region of the femur was assessed using dual energy X-ray absorptiometry. Biochemical analyzes were performed of 25(OH)-D, calcium and parathormone. Weight, knee height, and abdominal (AC), mid-upper arm (MUAC) and calf (CC) circumferences were measured. The percentage of body fat (%BF) and Fat-Free Mass (FFM) were quantified by electrical bioimpedance analysis. The Body Mass Index (BMI) was calculated. The statistical analysis used bivariate and multivariate, parametric and/or non-parametric tests, and was considered significant when p Results Of the total 51 older adults assessed, 30 of them (58.8%) were diagnosed with osteopenia/osteoporosis. Body weight (p = 0.001), BMI (p = 0.001), % BF (p = 0.030) and serum concentrations of 25(OH)-D (p = 0.003) were higher in the group without changes in BMD. BMI and serum levels of 25(OH)-D demonstrated a positive correlation with the BMD of all bone compartments and the AC displayed a positive correlation with the lumbar vertebrae. In the logistic regression models, adjusted for sex and age, the BMI and the serum concentration of 25(OH)-D were presented as a protective factor against osteopenia/osteoporosis. Conclusions Higher body weight, BMI, AC and %BF, and sufficient serum levels of vitamin D, were shown to be promoters of BMD.
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