Cited by 228Nutrition and Health in AgingMuscle metabolism and nutritionNutritional Studies and Diet

Associations Between Dietary Nutrient Intake and Muscle Mass and Strength in Community‐Dwelling Older Adults: The Tasmanian Older Adult Cohort Study

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Scott, David, Blizzard, Leigh, Fell, James, Giles, Graham, Jones, Graeme·2010·Journal of the American Geriatrics Society

Abstract

OBJECTIVES: To describe associations between dietary nutrient intake and progression of sarcopenia, the age‐related loss of muscle mass and strength. DESIGN: Prospective cohort study of community‐dwelling older adults. SETTING: Southern Tasmania, Australia. PARTICIPANTS: Seven hundred forty noninstitutionalized older adults (50% female; mean age 62±7) randomly sampled from electoral rolls. MEASUREMENTS: Dietary nutrient intake was examined at baseline and follow‐up (2.6±0.4 years later) using The Cancer Council Victoria's Food Frequency Questionnaire (FFQ). Appendicular lean mass (aLM) was assessed using dual X‐ray absorptiometry and muscle strength of the knee extensors using a dynamometer. RESULTS: Failing to meet the recommended dietary intake for protein was associated with significantly lower aLM at baseline (−0.81 kg, 95% confidence interval (CI)=−1.54 to −0.08) and follow‐up (−0.79 kg, 95%CI=−1.42 to −0.17). Energy‐adjusted protein intake was a positive predictor of change in aLM over 2.6 years (β=0.10, P =.003). Energy‐adjusted intake of iron (β=0.07, P =.02), magnesium (β=0.07, P =.02), phosphorus (β=0.07, P =.047), and zinc (β=0.08, P =.02) were positive predictors of change in aLM, whereas retinol (β=−0.09, P =.005) was a negative predictor of change in aLM after adjustment for protein intake. No significant associations were observed between nutrient intake and muscle strength. CONCLUSION: Protein and several other dietary nutrients are associated with muscle mass and rate of muscle loss (but not strength) in older adults, suggesting that multiple dietary components may ameliorate the progression of sarcopenia.

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Crossref · 10.1111/j.1532-5415.2010.03147.x

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Authors
Scott, D., Blizzard, L., Fell, J., Giles, G., & Jones, G.
Affiliations
  • University of Tasmania (AU)
  • Cancer Council Victoria (AU)
Venue
Journal of the American Geriatrics Society
Publisher
Wiley
Published
2010-11
Volume
58
Issue
11
Pages
2129-2134
ISSN
  • 0002-8614 (ISSN-L)
  • 1532-5415
OpenAlex
W1521805899
Cited by
228
References
4
Citations by year
2026: 11 · 2025: 12 · 2024: 11 · 2023: 17 · 2022: 17 · 2021: 23 · 2020: 23 · 2019: 21 · 2018: 20 · 2017: 22 · 2016: 10 · 2015: 12 · 2014: 12 · 2013: 9 · 2012: 4
FWCI
3.68
Type
journal article
Language
en
Open access
Locations
  • Journal of the American Geriatrics Society (publishedVersion)
  • PubMed (publishedVersion)
  • eCite Digital Repository (University of Tasmania) (submittedVersion)
  • Figshare (submittedVersion, cc-by)
Topics
  • Health Sciences › Medicine › Physiology › Nutrition and Health in Aging
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Muscle metabolism and nutrition
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Nutritional Studies and Diet
Keywords
sarcopenia, muscle mass, muscle strength, protein intake, micronutrients, iron, magnesium, phosphorus, zinc, retinol, appendicular lean mass, older adults, community-dwelling adults, nutrient intake
MeSH terms
Aged, Australia, Diet, Eating, Female, Humans, Male, Middle Aged, Time Factors, Cohort Studies, Muscle Strength, Sarcopenia

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