1. Total and regional bone mineral density are associated with cellular health in older men and women.
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Antunes, Melissa, Cyrino, Edilson S., Silva, Danilo R.P., Tomeleri, Crisieli M., Nabuco, Hellen C.G., Cavalcante, Edilaine F., Cunha, Paolo M., Cyrino, Letícia T., dos Santos, Leandro, Silva, Analiza M., and Sardinha, Luis B.
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ELDER care , *ANTHROPOMETRY , *DIETARY calcium , *CELL physiology , *FEMUR neck , *BIOELECTRIC impedance , *INGESTION , *REGRESSION analysis , *SPECTRUM analysis , *VITAMIN D , *BONE density , *CROSS-sectional method , *LEAN body mass , *PHOTON absorptiometry - Abstract
• The phase angle (PhA) may have relevant practical application. • The bioimpedance spectroscopy can monitoring the bone health. • Men and women showing a different relationship between PhA and bone health. This study aimed to investigate the relationship between crude bioimpedance variables with bone mineral density (BMD) in older adults. One hundred eighty-four older men and women (≥ 60 years old) composed the sample. BMD (whole-body) was measured through dual-energy X-ray absorptiometry. Bioimpedance spectroscopy was used to estimate whole-body resistance and reactance as well as to calculate the phase angle (PhA) and fat-free mass (FFM). Age, gender, body mass, FFM, height, calcium intake, vitamin D intake, number of fractures, number of diseases, and number of medications were included as covariates in the regression analyses. BMD fractions were significantly (P < 0.01) associated with PhA (femur: r = 0.524; neck: r = 0.450; and forearm: r = 0.437). Independently of age, body mass, FFM, calcium intake, vitamin D, number of diseases, fratures and medications, PhA remains a significant explanator of the variability of total (β = 0.22; P < 0.001), femur (β = 0.10; P = 0.018), and neck BMD (β = 0.07; P = 0.05) for men, and total (β = 0.08; P = 0.002), femur (β = 0.06; P = 0.005), neck (β = 0.04; P = 0.03), and forearm BMD (β = 0.05; P = 0.004) for women. Our results suggest that a higher PhA is associated with BMD in older men and women fractions regardless of relevant covariates highlighting the biological meaning of this simple and crude bioimpedance-based measure in the elderly population. [ABSTRACT FROM AUTHOR]
- Published
- 2020
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