Cited by 556Muscle metabolism and nutritionNutrition and Health in AgingMuscle Physiology and Disorders

Protein Supplementation Increases Muscle Mass Gain During Prolonged Resistance-Type Exercise Training in Frail Elderly People: A Randomized, Double-Blind, Placebo-Controlled Trial

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Tieland, Michael, Dirks, Marlou L., van der Zwaluw, Nikita, Verdijk, Lex B., van de Rest, Ondine, de Groot, Lisette C.P.G.M., van Loon, Luc J.C.·2012·Journal of the American Medical Directors Association

Abstract

Objectives Protein supplementation has been proposed as an effective dietary strategy to augment the skeletal muscle adaptive response to prolonged resistance-type exercise training in elderly people. Our objective was to assess the impact of protein supplementation on muscle mass, strength, and physical performance during prolonged resistance-type exercise training in frail elderly men and women. Design/setting/participants A randomized, double-blind, placebo-controlled trial with 2 arms in parallel among 62 frail elderly subjects (78 ± 1 year). These elderly subjects participated in a progressive resistance-type exercise training program (2 sessions per week for 24 weeks) during which they were supplemented twice daily with either protein (2 * 15 g) or a placebo. Measurements Lean body mass (DXA), strength (1-RM), and physical performance (SPPB) were assessed at baseline, and after 12 and 24 weeks of intervention. Results Lean body mass increased from 47.2 kg (95% CI, 43.5-50.9) to 48.5 kg (95% CI, 44.8-52.1) in the protein group and did not change in the placebo group (from 45.7 kg, 95% CI, 42.1-49.2 to 45.4 kg, 95% CI, 41.8-48.9) following the intervention (P value for treatment × time interaction = .006). Strength and physical performance improved significantly in both groups (P = .000) with no interaction effect of dietary protein supplementation. Conclusions Prolonged resistance-type exercise training represents an effective strategy to improve strength and physical performance in frail elderly people. Dietary protein supplementation is required to allow muscle mass gain during exercise training in frail elderly people. Trial registration clinicaltrials.gov identifier: NCT01110369.

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Crossref · 10.1016/j.jamda.2012.05.020

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  • In a clinical study, frail older people who engaged in resistance training and consumed supplemental dietary protein for 24 weeks showed significant muscle hypertrophy, together with increases in muscle strength and performance; researchers concluded that protein intake was necessary for training-associated gains in muscle mass.

    “In a clinical study, frail older people who engaged in resistance training and consumed supplemental dietary protein for 24 weeks showed significant muscle hypertrophy, together with increases in muscle strength and performance; study researchers concluded that protein intake was necessary for training-associated gains in muscle mass.142”

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Authors
Tieland, M., Dirks, M. L., van der Zwaluw, N., Verdijk, L. B., van de Rest, O., de Groot, L. C. P. G. M., & van Loon, L. J. C.
Affiliations
  • TiFN (NL)
  • Maastricht University Medical Centre (NL)
Corresponding author
Tieland, Michael
Venue
Journal of the American Medical Directors Association
Publisher
Elsevier BV
Published
2012-10
Volume
13
Issue
8
Pages
713-719
ISSN
1525-8610 (ISSN-L)
OpenAlex
W2054574324
Cited by
556
References
42
Citations by year
2026: 21 · 2025: 35 · 2024: 17 · 2023: 26 · 2022: 24 · 2021: 42 · 2020: 44 · 2019: 42 · 2018: 57 · 2017: 64 · 2016: 52 · 2015: 41 · 2014: 39 · 2013: 33 · 2012: 16
FWCI
19.56
Type
journal article
Language
en
Open access
Locations
  • Journal of the American Medical Directors Association (publishedVersion)
  • PubMed (publishedVersion)
  • Research Bank (Australian Catholic University) (submittedVersion)
  • Research Publications (Maastricht University) (submittedVersion)
  • Figshare (submittedVersion, cc-by)
  • Socio-Environmental Systems Modeling (submittedVersion)
  • Data Archiving and Networked Services (DANS) (submittedVersion)
Funders
Wageningen University and Research
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
protein supplementation, frail elderly, muscle mass gain, lean body mass, muscle strength, physical performance, sarcopenia, older adults
MeSH terms
Aged, Dietary Proteins, Double-Blind Method, Exercise Therapy, Female, Humans, Male, Netherlands, Frail Elderly, Muscle, Skeletal, Dietary Supplements, Muscle Strength, Resistance Training

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