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Sarcopenic obesity and dynapenic obesity: 5-year associations with falls risk in middle-aged and older adults


Scott, D and Sanders, KM and Aitken, D and Hayes, A and Ebeling, PR and Jones, G, Sarcopenic obesity and dynapenic obesity: 5-year associations with falls risk in middle-aged and older adults, Obesity: a research journal, 22, (6) pp. 1568-1574. ISSN 1930-7381 (2014) [Refereed Article]

Copyright Statement

Copyright 2014 The Obesity Society

DOI: doi:10.1002/oby.20734


OBJECTIVES: To determine whether obesity concurrent with sarcopenia (low muscle mass) or dynapenia (low muscle strength) is associated with increased falls risk in middle-aged and older adults. METHODS: 5-year prospective cohort study including 674 community-dwelling volunteers (mean  SD age 61.4  7.0 years; 48% female). Sarcopenia and dynapenia were defined as lowest sex-specific tertiles for dual-energy X-ray (DXA)-assessed appendicular lean mass (adjusted for height and fat mass) or lower-limb strength, respectively. Obesity was defined as the highest tertiles of DXA-assessed total or trunk fat mass. Change in falls risk was calculated using the Physiological Profile Assessment (z-scores: 0-1 = mild increased risk; 1-2 = moderate increased risk; >2 = marked increased risk). RESULTS: Multivariable linear regression analyses revealed mild but significantly increased falls risk scores for dynapenic obesity (change in mean z-score compared to non-dynapenic, non-obese group: 0.33, 95% CI 0.06-0.59 [men] and 0.46, 95% CI 0.21-0.72 [women]) and dynapenia (0.25, 95% CI 0.05-0.46 [women only]). CONCLUSIONS: Dynapenic obesity, but not sarcopenic obesity, is predictive of increased falls risk score in middle-aged and older adults.s In clinical settings, muscle function assessments may be useful for predicting falls risk in obese patients.

Item Details

Item Type:Refereed Article
Keywords:Sarcopenic obesity, dynapenic obesity, falls risk
Research Division:Health Sciences
Research Group:Epidemiology
Research Field:Epidemiology not elsewhere classified
Objective Division:Health
Objective Group:Specific population health (excl. Indigenous health)
Objective Field:Health related to ageing
UTAS Author:Aitken, D (Associate Professor Dawn Aitken)
UTAS Author:Jones, G (Professor Graeme Jones)
ID Code:91391
Year Published:2014
Web of Science® Times Cited:61
Deposited By:Menzies Institute for Medical Research
Deposited On:2014-05-16
Last Modified:2017-11-03

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