Cited by 144Nutrition and Health in AgingMuscle Physiology and DisordersBody Composition Measurement Techniques

Difference in Muscle Quality over the Adult Life Span and Biological Correlates in the Baltimore Longitudinal Study of Aging

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Moore, Ann Zenobia, Caturegli, Giorgio, Metter, E. Jeffrey, Makrogiannis, Sokratis, Resnick, Susan M., Harris, Tamara B., Ferrucci, Luigi·2014·Journal of the American Geriatrics Society

Abstract

Objectives: To examine differences in a proxy measure of muscle quality across the adult life span and explore potential mechanisms of muscle quality change through identification of cross‐sectional correlates of muscle quality. Design: Cross‐sectional study. Setting: B altimore L ongitudinal S tudy of A ging. Participants: Seven hundred eighty‐six individuals with a mean age of 66.3 (range 26–96) (N = 786). A sensitivity analysis was conducted in a subset of participants matched according to sex, muscle mass, and body size. Measurements: Muscle quality was operationalized as the ratio of knee‐extension strength (isokinetic dynamometry) to thigh muscle cross‐sectional area (computed tomography). Differences in muscle strength, muscle area, and muscle quality ratio with age were evaluated, and the association between the muscle quality ratio and measures reflecting domains of cognitive function, motor control, peripheral nerve function, adiposity, glucose homeostasis, and inflammation were assessed through multivariate regression analyses. Results: A linear relationship between age and muscle quality ratio was observed, suggesting a gradual decline in muscle quality over the adult life course. Associations were observed between muscle quality ratio and measures of adiposity, as well as peroneal nerve motor conduction velocity, finger tapping speed, and memory performance ( P < .01). The association between muscle quality ratio and nerve conduction velocity was maintained after adjustment for anthropometric measurements ( P < .05). Conclusion: Muscle quality declines progressively with age over the adult life span and is affected by obesity and neurological factors. Studies are needed to clarify the mechanisms of these associations and their implications for functional outcomes.

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Authors
Moore, A. Z., Caturegli, G., Metter, E. J., Makrogiannis, S., Resnick, S. M., Harris, T. B., & Ferrucci, L.
Affiliations
  • Longitudinal Studies Section Translational Gerontology Branch Baltimore Maryland
  • National Institute on Aging (US)
  • National Institutes of Health (US)
Corresponding author
Moore, Ann Zenobia
Venue
Journal of the American Geriatrics Society
Publisher
Wiley
Published
2014-01-17
Volume
62
Issue
2
Pages
230-236
ISSN
  • 0002-8614 (ISSN-L)
  • 1532-5415
OpenAlex
W1991562722
Cited by
144
References
42
Citations by year
2025: 8 · 2024: 4 · 2023: 7 · 2022: 11 · 2021: 21 · 2020: 15 · 2019: 14 · 2018: 15 · 2017: 12 · 2016: 18 · 2015: 13 · 2014: 5 · 2012: 1
FWCI
10.67
Type
journal article
Language
en
Open access
Locations
  • Journal of the American Geriatrics Society (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • Intramural Research Program of the National Institutes of Health
  • National Institute on Aging
Topics
  • Health Sciences › Medicine › Physiology › Nutrition and Health in Aging
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Muscle Physiology and Disorders
  • Health Sciences › Medicine › Physiology › Body Composition Measurement Techniques
Keywords
muscle quality, quadriceps strength, thigh muscle cross-sectional area, aging, adiposity, obesity, motor control, finger tapping speed, memory performance, glucose homeostasis, inflammation, muscle mass
MeSH terms
Adult, Aged, Aged, 80 and over, Aging, Cross-Sectional Studies, Female, Follow-Up Studies, Humans, Male, Middle Aged, Retrospective Studies, Tomography, X-Ray Computed, Baltimore, Geriatric Assessment, Body Mass Index, Muscle, Skeletal, Quadriceps Muscle, Muscle Strength

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