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KMID : 1120320210070040127
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Osteoporosis and Sarcopenia
2021 Volume.7 No. 4 p.127 ~ p.133
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Daily activity relates to not only femoral bone mineral density, but also hip structural analysis parameters: A cross-sectional observational study
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Fujii Norifumi
Okimoto Nobukazu
Tsukamoto Manabu
Fujii Norimitsu
Asano Kei
Ikejiri Yoshiaki
Yoshioka Toru
Tajima Takafumi
Yamanaka Yoshiaki
Zenke Yukichi
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Abstract
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Objectives: Physical activity to maintain bone mass and strength is important for hip fracture prevention. We aim to investigate the relationship between physical performance/activity status and bone mineral density (BMD)/hip structural analysis (HSA) parameters among postmenopausal women in Japan.
Methods: Sixty-two postmenopausal women diagnosed with osteoporosis (mean age: 72.61 ± 7.43 years) were enrolled in this cross-sectional observational study. They were evaluated for BMD and HSA in the proximal femur by dual-energy X-ray absorptiometry and underwent several physical performance tests, the Geriatric Locomotive Function Scale of 25 questions (GLFS-25). Principal component analysis (PCA) was used to summarize data on the BMD/HSA parameters. Partial correlation analysis, multiple regression analysis, and structural equation modeling (SEM) were performed to investigate the relationship between physical performance/activity status and BMD/HSA parameters of the proximal femur.
Results: In a partial correlation analysis adjusted for age and body mass index (BMI), GLFS-25 scores were correlated with HSA parameter (|r| = 0.260?0.396, P < 0.05). Principal component 1 (PC1) calculated by PCA was interpreted as more reflective of bone strength based on the value of BMD/HSA parameters. The SEM results showed that the model created by the 3 questions (Q13, brisk walking; Q15, keep walking without rest; Q20, load-bearing tasks and housework) of the GLFS-25 had the best fit and was associated with the PC1 score (β = ?0.444, P = 0.001).
Conclusions: The GLFS-25 score was associated with the BMD/HSA parameter, which may reflect the bone strength of the proximal femur as calculated by PCA.
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KEYWORD
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Geriatric locomotive function scale of 25 questions, Hip structural analysis, Bone mineral density, Osteoporosis, Locomotive syndrome
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