Cited by 56Muscle metabolism and nutritionNutrition and Health in AgingMuscle Physiology and Disorders

Dietary protein considerations to support active aging

Open access
Wall, Benjamin T., Cermak, Naomi M., van Loon, Luc J. C.·2014·Sports Medicine

Abstract

Given our rapidly aging world-wide population, the loss of skeletal muscle mass with healthy aging (sarcopenia) represents an important societal and public health concern. Maintaining or adopting an active lifestyle alleviates age-related muscle loss to a certain extent. Over time, even small losses of muscle tissue can hinder the ability to maintain an active lifestyle and, as such, contribute to the development of frailty and metabolic disease. Considerable research focus has addressed the application of dietary protein supplementation to support exercise-induced gains in muscle mass in younger individuals. In contrast, the role of dietary protein in supporting the maintenance (or gain) of skeletal muscle mass in active older persons has received less attention. Older individuals display a blunted muscle protein synthetic response to dietary protein ingestion. However, this reduced anabolic response can largely be overcome when physical activity is performed in close temporal proximity to protein consumption. Moreover, recent evidence has helped elucidate the optimal type and amount of dietary protein that should be ingested by the older adult throughout the day in order to maximize the skeletal muscle adaptive response to physical activity. Evidence demonstrates that when these principles are adhered to, muscle maintenance or hypertrophy over prolonged periods can be further augmented in active older persons. The present review outlines the current understanding of the role that dietary protein occupies in the lifestyle of active older adults as a means to increase skeletal muscle mass, strength and function, and thus support healthier aging.

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  • Creatine, citrulline, and leucine-rich feedings are best interpreted as compounds that help maintain a permissive metabolic and signalling environment in which mechanical loading can drive nucleolar expansion.

    “Creatine [166,167], citrulline [168,169], and leucine-rich feedings [111,162] are best interpreted as compounds that help maintain a permissive metabolic and signalling environment in which mechanical loading can drive nucleolar expansion.”

    From Ribosome Biogenesis as a Putative Bottleneck to Skeletal Muscle Hypertrophy: Mechanisms, Human Evidence, and Practical Modulators (2026) · cites this paper as [162]

    The Type and Amount of Dietary Protein section reports that leucine-enriched protein can amplify the post-meal anabolic response in elderly men. The Nutritional Regulation section identifies leucine as relevant to mTOR signalling. These passages support a role for leucine-rich feedings in muscle protein synthesis, but the paper does not link them to mechanical loading driving nucleolar expansion; it says their relevance after exercise needs further study. (LLM, conf=0.86)

    Experimental — accuracy not yet measured
  • Leucine-rich feedings can amplify the stimulation of MPS, particularly in older adults or in contexts of anabolic resistance.

    “leucine-rich feedings can amplify the stimulation of MPS, particularly in older adults or in contexts of anabolic resistance [111,162]”

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Authors
Wall, B. T., Cermak, N. M., & van Loon, L. J. C.
Affiliations
Maastricht University (NL)
Venue
Sports Medicine
Published
2014-10-30
Volume
44
Issue
S2
Pages
185-194
ISSN
  • 0112-1642 (ISSN-L)
  • 1179-2035
OpenAlex
W1969627119
Cited by
56
References
141
Citations by year
2026: 3 · 2025: 1 · 2024: 2 · 2023: 1 · 2022: 3 · 2021: 4 · 2020: 4 · 2019: 6 · 2018: 2 · 2017: 6 · 2016: 15 · 2015: 7 · 2014: 1 · 2012: 1
FWCI
0.97
Type
journal article
Language
en
Open access
Locations
  • Sports Medicine (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Open Research Exeter (University of Exeter) (acceptedVersion, other-oa)
  • Research Bank (Australian Catholic University) (submittedVersion)
  • Figshare (submittedVersion)
Funders
  • PepsiCo
  • Gran Sasso Science Institute
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Muscle metabolism and nutrition
  • Health Sciences › Medicine › Physiology › Nutrition and Health in Aging
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Muscle Physiology and Disorders
Keywords
dietary protein, sarcopenia, healthy aging, older adults, muscle protein synthesis, muscle hypertrophy, frailty, physical activity, protein timing, muscle strength, muscle function, active ageing
MeSH terms
Aged, Aging, Dietary Proteins, Humans, Muscle Proteins, Physical Education and Training, Exercise, Muscle, Skeletal

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