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Functional consequences of sarcopenia and dynapenia in the elderly
Open accessAbstract
PURPOSE OF REVIEW: The economic burden due to the sequela of sarcopenia (muscle wasting in the elderly) are staggering and rank similarly to the costs associated with osteoporotic fractures. In this article, we discuss the societal burden and determinants of the loss of physical function with advancing age, the physiologic mechanisms underlying dynapenia (muscle weakness in the elderly), and provide perspectives on related critical issues to be addressed. RECENT FINDINGS: Recent epidemiological findings from longitudinal aging studies suggest that dynapenia is highly associated with both mortality and physical disability even when adjusting for sarcopenia indicating that sarcopenia may be secondary to the effects of dynapenia. These findings are consistent with the physiologic underpinnings of muscle strength, as recent evidence demonstrates that alterations in muscle quantity, contractile quality and neural activation all collectively contribute to dynapenia. SUMMARY: Although muscle mass is essential for regulation of whole body metabolic balance, overall neuromuscular function seems to be a critical factor for maintaining muscle strength and physical independence in the elderly. The relative contribution of physiologic factors contributing to muscle weakness are not fully understood and further research is needed to better elucidate these mechanisms between muscle groups and across populations.
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Metadata
- Authors
- Clark, B. C., & Manini, T. M.
- Affiliations
- Ohio University (US)
- University of Florida (US)
- Corresponding author
- Manini, Todd M
- Venue
- Current Opinion in Clinical Nutrition and Metabolic Care
- Published
- 2010-05
- Volume
- 13
- Issue
- 3
- Pages
- 271-276
- ISSN
- 1363-1950 (ISSN-L)
- PMC
- PMC2895460
- OpenAlex
- W2064516207
- Cited by
- 359
- References
- 53
- Citations by year
- 2026: 8 · 2025: 11 · 2024: 23 · 2023: 21 · 2022: 24 · 2021: 37 · 2020: 30 · 2019: 15 · 2018: 24 · 2017: 29 · 2016: 25 · 2015: 34 · 2014: 22 · 2013: 21 · 2012: 19
- FWCI
- 1.70
- Type
- journal article
- Language
- en
- Open access
- green
- www.ncbi.nlm.nih.gov
- Locations
- Current Opinion in Clinical Nutrition & Metabolic Care (publishedVersion)
- PubMed (publishedVersion)
- PubMed Central (acceptedVersion)
- Funders
- National Institute on Aging (R21AG031974, P30AG028740)
- Eunice Kennedy Shriver National Institute of Child Health and Human Development (R15HD065552)
- Topics
- Health Sciences › Medicine › Physiology (medical) › Nutrition and Health in Aging
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Muscle Physiology and Disorders
- Health Sciences › Medicine › Geriatrics and Gerontology › Frailty in Older Adults
- Keywords
- sarcopenia, dynapenia, muscle weakness, muscle atrophy, aging, physical function, physical disability, mortality, economic burden, muscle strength, neuromuscular function, neuronal activation, muscle mass, older adults
- MeSH terms
- Activities of Daily Living, Aged, Persons with Disabilities, Humans, Muscle, Skeletal, Muscle Weakness, Sarcopenia
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