The DOI matches its Crossref record; 33 of the 34 references it cites were found in a registry or an index.
Predictors of skeletal muscle mass in elderly men and women
Abstract
Background Elderly men and women lose muscle mass and strength with increasing age. Decreased physical activity, hormones, malnutrition and chronic disease have been identified as factors contributing to this loss. There are few data, however, for their multivariate associations with muscle mass and strength. This study analyzes these associations in a cross-sectional sample of elderly people from the New Mexico Aging Process Study.Methods Data collected in 1994 for 121 male and 180 female volunteers aged 65-97 years of age enrolled in The New Mexico Aging Process Study were analyzed. Body composition was measured using dual energy X-ray absorptiometry; dietary intake from 3 day food records; usual physical activity by questionnaire; health status from annual physical examinations; and serum testosterone, estrone, sex-hormone binding globulin (SHBG), and insulin-like growth factor (IGF1) from radioimmunoassays of fasting blood samples. Statistical analyses included partial correlation and stepwise multiple regression.Results The muscle mass and strength (adjusted for knee height) decreased with increasing age in both sexes. The muscle mass was significantly associated with serum free-testosterone, physical activity, cardiovascular disease, and IGF1 in the men. In the women, the muscle mass was significantly associated with total fat mass and physical activity. Age was not associated significantly with muscle mass after controlling for these variables. Grip strength was associated with age independent of muscle mass in both sexes. Estrogen (endogenous and exogenous) was not associated with muscle mass or strength in women.Conclusions Age-related loss of muscle mass and strength occurs in relatively healthy, well-nourished elderly men and women and has a multifactorial basis. Sex hormone status is an important factor in men but not in women. Physical activity is an important predictor of muscle mass in both sexes.
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“Muscle mass significantly associated with serum-free testosterone [81] and testosterone levels decrease at a rate of approximately 1% per year after the age of 30 [82].”
From Novel Insights on Intake of Fish and Prevention of Sarcopenia: All Reasons for an Adequate Consumption (2020) · cites this paper as [81]
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Metadata
- Authors
- Baumgartner, R. N., Waters, D. L., Gallagher, D., Morley, J. E., & Garry, P. J.
- Affiliations
- University of New Mexico (US)
- St. Luke's-Roosevelt Hospital Center (US)
- St. Louis VA Medical Center (US)
- Corresponding author
- Morley, John E.
- Venue
- Mechanisms of Ageing and Development
- Publisher
- Elsevier BV
- Published
- 1999-03
- Volume
- 107
- Issue
- 2
- Pages
- 123-136
- ISSN
- 0047-6374 (ISSN-L)
- OpenAlex
- W2042178933
- Cited by
- 809
- References
- 34
- Citations by year
- 2026: 9 · 2025: 28 · 2024: 23 · 2023: 22 · 2022: 38 · 2021: 29 · 2020: 33 · 2019: 26 · 2018: 42 · 2017: 40 · 2016: 34 · 2015: 26 · 2014: 35 · 2013: 46 · 2012: 44
- FWCI
- 9.84
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Mechanisms of Ageing and Development (publishedVersion)
- PubMed (publishedVersion)
- Funders
- National Institutes of Health
- National Institute on Aging (R01AG010149, AG 02049, AG 10149)
- 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 › Endocrinology, Diabetes and Metabolism › Hormonal and reproductive studies
- Keywords
- skeletal muscle mass, muscle strength, sarcopenia, aging, older adults, sex differences, physical activity, sex hormones, free testosterone, estrone, sex hormone-binding globulin, insulin-like growth factor I, grip strength, fat mass, cardiovascular disease, body composition
- MeSH terms
- Aged, Aged, 80 and over, Aging, Body Composition, Female, Humans, Male, Muscle, Skeletal
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