Measures of physical performance as a predictor of fracture risk independent of BMD: The Chungju metabolic disease cohort study

Yejee Lim, Jeonghoon Ha, Kun Ho Yoon, Ki Hyun Baek, Moo Il Kang

Research output: Contribution to journalArticlepeer-review

Abstract

Background: Bone mineral density (BMD) assessments alone might not be sufficient for assessing fracture risk in the whole population, and decreased balance is an important risk factor for fracture. The aim of this study was to evaluate the association between baseline physical performance and fracture risk. Methods: This community-based cohort study was conducted in rural areas. The follow-up examination was performed in 4015 subjects for approximately 4 years. We used the one-leg standing time (OLST) to assess static balance and the timed up-and-go test (TUGT) to assess dynamic balance. Fractures were assessed during the medical interview. Results: The participants were divided into quartile groups according to their performance level, and the lowest baseline OLST performance was associated with a 2.1-fold increased risk of major osteoporotic fracture (MOF) independent of age, gender, hip BMD, fall incidence, and lifestyle factors. The participants in the low performance quartile of baseline OLST or TUGT performance had an increased incidence of osteoporosis and falling compared to that in the participants in the highest baseline performance quartile after adjusting for covariates. Among the participants with a femoral neck T-score above −2.5, the participants with an OLST below 14 s had a 1.7-fold higher risk of MOF than the participants with an OLST of 14 s or more. Conclusions: The measurement of static balance by the OLST predicted the risk of fracture in Korean adults independent of BMD and fall history. Our results suggest that the OLST may have clinical utility in identifying individuals at risk of fracture, especially those who might not be adequately identified by BMD measurements alone.

Original languageEnglish
Article number115878
JournalBone
Volume145
DOIs
StatePublished - Apr 2021

Keywords

  • Cohort study
  • Falls
  • Osteoporosis
  • Osteoporotic fracture
  • Physical performance

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