期刊
JOURNALS OF GERONTOLOGY SERIES A-BIOLOGICAL SCIENCES AND MEDICAL SCIENCES
卷 76, 期 9, 页码 E187-E193出版社
OXFORD UNIV PRESS INC
DOI: 10.1093/gerona/glab122
关键词
Accidental falls; Functional mobility; Middle age; Predicting falls; Risk factors
资金
- National Health and Medical Research Council (NHMRC)
- Menzies Institute for Medical Research NHMRC development grant
- NHMRC [APP1158661, APP1135761, APP1117037]
The study found that changes in baseline leg muscle strength (LMS) and balance measures were not associated with incident falls among middle-aged women. Future research needs to investigate how environmental and other intrinsic factors impact the occurrence of falls.
Background: Muscle strength and balance are major modifiable factors of falls in older adults, but their associations with falls in middle-aged adults are underinvestigated. We aimed to examine the association of baseline and change in leg muscle strength (LMS) and balance with the incidence of falls in a cohort of middle-aged women. Methods: This was a 5-year follow-up of a population-based sample of 273 women aged 36-57 years at baseline (2011-2012). Data on LMS (by dynamometer) and balance (timed up and go test, step test, functional reach test, and lateral reach test) were obtained at baseline and 5 years later (2017-2018). After 5 years, falls were recorded monthly for 1 year by questionnaire (2017-2019). Negative binomial/Poisson and log-binomial regressions were used as appropriate to assess associations of baseline and change in LMS and balance with any falls, injurious falls, and multiple falls. Results: Over 1 year, 115 participants (42%) reported at least one fall. Neither baseline nor 5-year change in LMS and balance measures was associated with the risk of any falls, injurious falls, or multiple falls 5 years later, with or without adjusting for confounders at baseline (incidence rate ratio/relative risk ranging from 0.85 to 1.19, 0.90 to 1.20, and 0.82 to 1.36, respectively; p > .05 for all). Conclusions: Baseline or change in LMS and balance measures are not associated with incident falls among middle-aged women. The contributions of environmental and other intrinsic factors such as chronic conditions and gait/mobility problems need to be investigated.
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