Cited by 123Nutrition and Health in AgingMuscle metabolism and nutritionBone health and osteoporosis research

A 5-year cohort study of the effects of high protein intake on lean mass and BMC in elderly postmenopausal women

Meng, Xingqiong, Zhu, Kun, Devine, Amanda, Kerr, Deborah A., Binns, Colin W., Prince, Richard L.·2009·Journal of Bone and Mineral Research

Abstract

Long-term effects of high dietary protein intake on muscle and bone structure in the elderly are not clear. The aim of this study was to investigate the relationship between baseline protein intake and lean mass and BMC 5 yr later in a cohort of elderly postmenopausal women. A total of 862 community-dwelling women 75 ± 3 yr of age provided baseline data including nutrient intake assessed by a food frequency questionnaire. At 5 yr, upper arm muscle area (UAMA) and body composition using DXA were measured. Baseline protein intake was 81 ± 28 g/d (1.2 ± 0.4 g/kg/d), contributing 19 ± 3% of total energy intake. There were positive correlations between baseline protein intake and whole body and appendicular bone-free lean mass and BMC (r = 0.14–0.18, p < 0.001) and UAMA (r = 0.08, p < 0.05). Compared with those in the lowest tertile of protein intake (<66 g/d), women in the top tertile (>87 g/d) had 5.4–6.0% higher whole body and appendicular lean mass and UAMA and 5.3–6.0% higher whole body and appendicular BMC. These effects remained after adjusting for potential confounders. However, the effect on BMC disappeared after further adjustment for lean mass. This study shows that high protein intake is associated with long-term beneficial effects on muscle mass and size and bone mass in elderly women. The protein effect on bone may be partly mediated by its effects on muscle.

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Crossref · 10.1359/jbmr.090513

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Authors
Meng, X., Zhu, K., Devine, A., Kerr, D. A., Binns, C. W., & Prince, R. L.
Affiliations
  • Curtin University (AU)
  • The University of Western Australia (AU)
  • Edith Cowan University (AU)
Corresponding author
Prince, Richard L.
Venue
Journal of Bone and Mineral Research
Published
2009-11-01
Volume
24
Issue
11
Pages
1827-1834
ISSN
  • 0884-0431 (ISSN-L)
  • 1523-4681
OpenAlex
W2000373925
Cited by
123
References
51
Citations by year
2026: 4 · 2025: 1 · 2024: 3 · 2023: 4 · 2022: 10 · 2021: 7 · 2020: 14 · 2019: 10 · 2018: 6 · 2017: 9 · 2016: 6 · 2015: 9 · 2014: 15 · 2013: 8 · 2012: 4
FWCI
3.77
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Bone and Mineral Research (publishedVersion)
  • PubMed (publishedVersion)
  • UWA Profiles and Research Repository (UWA) (submittedVersion)
  • Australasian Journal of Paramedicine (submittedVersion)
  • eSpace (Curtin University) (submittedVersion)
Funders
  • Healthway
  • National Health and Medical Research Council
  • National Medical Research Council
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 › Orthopedics and Sports Medicine › Bone health and osteoporosis research
Keywords
protein intake, high-protein diet, lean body mass, bone mineral content, postmenopausal women, older women, muscle mass, upper arm muscle area, body composition, bone health, muscle-bone relationship
MeSH terms
Aged, Anthropometry, Body Composition, Body Weight, Bone and Bones, Demography, Dietary Proteins, Feeding Behavior, Female, Humans, Muscles, Organ Size, Time Factors, Cohort Studies, Bone Density, Postmenopause

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