Cited by 208Muscle metabolism and nutritionNutrition and Health in AgingMuscle Physiology and Disorders

Efficacy of Whey Protein Supplementation on Resistance Exercise–Induced Changes in Lean Mass, Muscle Strength, and Physical Function in Mobility-Limited Older Adults

Open access
Chalé, Angela, Cloutier, Gregory J., Hau, Cynthia, Phillips, Edward M., Dallal, Gerard E., Fielding, Roger A.·2013·The Journals of Gerontology: Series A

Abstract

BACKGROUND: Whey protein supplementation may augment resistance exercise-induced increases in muscle strength and mass. Further studies are required to determine whether this effect extends to mobility-limited older adults. The objectives of the study were to compare the effects of whey protein concentrate (WPC) supplementation to an isocaloric control on changes in whole-body lean mass, mid-thigh muscle cross-sectional area, muscle strength, and stair-climbing performance in older mobility-limited adults in response to 6 months of resistance training (RT). METHODS: Eighty mobility-limited adults aged 70-85 years were randomized to receive WPC (40g/day) or an isocaloric control for 6 months. All participants also completed a progressive high-intensity RT intervention. Sample sizes were calculated based on the primary outcome of change in whole-body lean mass to give 80% power for a 0.05-level, two-sided test. RESULTS: Lean mass increased 1.3% and 0.6% in the WPC and control groups, respectively. Muscle cross-sectional area was increased 4.6% and 2.9% in the WPC and control groups, respectively, and muscle strength increased 16%-50% in WPC and control groups. Stair-climbing performance also improved in both groups. However, there were no statistically significant differences in the change in any of these variables between groups. CONCLUSIONS: These data suggest that WPC supplementation at this dose does not offer additional benefit to the effects of RT in mobility-limited older adults.

Integrity signals

Registry

Crossref · 10.1093/gerona/gls221

Cites

7 of 7 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

We couldn’t retrieve this paper’s full text, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • A trial in mobility-limited older adults comparing resistance training with whey protein supplementation or an isocaloric diet over 6 months found no statistically different changes in lean body mass, muscle cross-sectional area, muscle strength, or stair-climbing.

    “Yet another trial compared resistance training in mobility-limited older adults in subgroups who received either whey protein supplementation or an isocaloric diet over 6 months; no statistically different changes were seen in lean body mass, muscle cross-sectional area, muscle strength, PROT-AGE recommendations for exercise and protein intake for older adults Endurance exercise is recommended at”

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Chalé, A., Cloutier, G. J., Hau, C., Phillips, E. M., Dallal, G. E., & Fielding, R. A.
Affiliations
Tufts University (US)
Venue
The Journals of Gerontology: Series A
Published
2012-10-31
Volume
68
Issue
6
Pages
682-690
ISSN
  • 1079-5006 (ISSN-L)
  • 1758-535X
OpenAlex
W2111002841
Cited by
208
References
7
Citations by year
2026: 3 · 2025: 4 · 2024: 9 · 2023: 8 · 2022: 14 · 2021: 21 · 2020: 24 · 2019: 16 · 2018: 24 · 2017: 20 · 2016: 17 · 2015: 23 · 2014: 15 · 2013: 9 · 2012: 1
FWCI
7.28
Type
journal article
Language
en
Open access
Locations
  • The Journals of Gerontology Series A (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • Research Repository (Kingston University London) (submittedVersion)
Funders
  • U.S. Department of Agriculture (No. 58-1950-0-014, #58–1950-0-014, 1P30AG031679)
  • National Institutes of Health (5p30ag031679-15, 5t32dk007651-19)
  • National Institute on Aging (1 P30 AG031679)
  • National Institute of Diabetes and Digestive and Kidney Diseases (DK007651)
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
whey protein concentrate, protein supplementation, resistance training, older adults, lean body mass, muscle strength, muscle cross-sectional area, physical function, sarcopenia
MeSH terms
Whey Proteins, Aged, Aged, 80 and over, Aging, Body Composition, Energy Intake, Double-Blind Method, Female, Humans, Male, Milk Proteins, Physical Endurance, Absorptiometry, Photon, Case-Control Studies, Range of Motion, Articular, Treatment Outcome, Muscle, Skeletal, Dietary Supplements, Muscle Stretching Exercises, Muscle Strength

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review