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Cardiorespiratory Fitness is Inversely Associated with Risk of Low Bone Mineral Density in Older Korean Men

Author

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  • Inhwan Lee

    (College of Sport Science, Sungkyunkwan University, Suwon 16419, Korea)

  • Jeonghyeon Kim

    (College of Sport Science, Sungkyunkwan University, Suwon 16419, Korea)

  • Hyunsik Kang

    (College of Sport Science, Sungkyunkwan University, Suwon 16419, Korea)

Abstract

Little is known regarding the association between physical fitness and bone health in older Korean men. This study investigated the relationship between estimated cardiorespiratory fitness (eCRF) and bone mineral density (BMD). This cross-sectional study included 2715 Korean men aged 50 years and older selected from those who participated in the 2008–2011 Korea National Health and Nutritional Examination and Survey. eCRF was obtained using a sex-specific algorithm developed on the basis of age, body mass index, resting heart rate, and physical activity and classified into low, middle, and high categories. Femoral neck BMD was assessed by dual X-ray absorptiometry. Odds ratios (OR) and 95% confidence intervals (CI) for osteopenia, osteoporosis, and low BMD were calculated for eCRF categories in models fully adjusted for age, waist circumference, education, income, smoking, heavy alcohol intake, serum vitamin D, serum parathyroid hormone, and dietary intake of energy, protein, calcium, and vitamins A and C. Overall, eCRF levels were positively associated with BMD and negatively with prevalence of osteopenia, osteoporosis, and low BMD. Logistic regression showed inverse trends in the risks of osteopenia (high vs. low: OR = 0.692; 95% CI, 0.328–0.517; p = 0.049) and low BMD (high vs. low: OR = 0.669; 95% CI, 0.497–0.966; p = 0.029) by eCRF category in models fully adjusted for all the measured covariates. The current findings suggest that maintaining high eCRF via regular physical activity may contribute to attenuation of age-related loss of BMD and decreased risk for low BMD in older Korean men.

Suggested Citation

  • Inhwan Lee & Jeonghyeon Kim & Hyunsik Kang, 2020. "Cardiorespiratory Fitness is Inversely Associated with Risk of Low Bone Mineral Density in Older Korean Men," IJERPH, MDPI, vol. 17(21), pages 1-10, October.
    • Handle: RePEc:gam:jijerp:v:17:y:2020:i:21:p:7907-:d:436098
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    References listed on IDEAS

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    1. Inhwan Lee & Jeonghyeon Kim & Hyunsik Kang, 2020. "Estimated Cardiorespiratory Fitness Attenuates the Impacts of Sarcopenia and Obesity on Non-Alcoholic Fatty Liver in Korean Adults," IJERPH, MDPI, vol. 17(11), pages 1-12, May.
    2. Hae-Dong Jang & Jae-Young Hong & Kyungdo Han & Jae Chul Lee & Byung-Joon Shin & Sung-Woo Choi & Seung-Woo Suh & Jae-Hyuk Yang & Si-Young Park & Chungwon Bang, 2017. "Relationship between bone mineral density and alcohol intake: A nationwide health survey analysis of postmenopausal women," PLOS ONE, Public Library of Science, vol. 12(6), pages 1-11, June.
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