Cited by 95Muscle metabolism and nutritionSports Performance and TrainingNutrition and Health in Aging

The Effects of Creatine Supplementation Combined with Resistance Training on Regional Measures of Muscle Hypertrophy: A Systematic Review with Meta-Analysis

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Burke, Ryan, Piñero, Alec, Coleman, Max, Mohan, Adam, Sapuppo, Max, Augustin, Francesca, Aragon, Alan A., Candow, Darren G. +3 more·2023·Nutrients

Abstract

The purpose of this paper was to carry out a systematic review with a meta-analysis of randomized controlled trials that examined the combined effects of resistance training (RT) and creatine supplementation on regional changes in muscle mass, with direct imaging measures of hypertrophy. Moreover, we performed regression analyses to determine the potential influence of covariates. We included trials that had a duration of at least 6 weeks and examined the combined effects of creatine supplementation and RT on site-specific direct measures of hypertrophy (magnetic resonance imaging (MRI), computed tomography (CT), or ultrasound) in healthy adults. A total of 44 outcomes were analyzed across 10 studies that met the inclusion criteria. A univariate analysis of all the standardized outcomes showed a pooled mean estimate of 0.11 (95% Credible Interval (CrI): −0.02 to 0.25), providing evidence for a very small effect favoring creatine supplementation when combined with RT compared to RT and a placebo. Multivariate analyses found similar small benefits for the combination of creatine supplementation and RT on changes in the upper and lower body muscle thickness (0.10–0.16 cm). Analyses of the moderating effects indicated a small superior benefit for creatine supplementation in younger compared to older adults (0.17 (95%CrI: −0.09 to 0.45)). In conclusion, the results suggest that creatine supplementation combined with RT promotes a small increase in the direct measures of skeletal muscle hypertrophy in both the upper and lower body.

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Crossref · 10.3390/nu15092116

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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 [166]

    The Introduction (page not available) says creatine supports ATP resynthesis and influences factors that may contribute to muscle accretion during resistance training. That supports the metabolic and signalling aspect of the claim about creatine, but the paper does not connect those effects to nucleolar expansion. The citrulline and leucine portions are attributed to other citations, not this source. (LLM, conf=0.84)

    Experimental — accuracy not yet measured
  • Meta-analytic evidence indicates that creatine supplementation combined with resistance training may provide a small additional benefit for directly measured muscle hypertrophy.

    “Meta-analytic evidence indicates that creatine supplementation combined with resistance training may provide a small additional benefit for directly measured muscle hypertrophy [166]”
  • Among nutritional supplements, creatine has one of the strongest evidence bases for supporting resistance-training adaptations.

    “Among nutritional supplements, creatine has one of the strongest evidence bases for supporting resistance-training adaptations.”
  • Creatine is best interpreted as a plausible indirect supporter of ribosome biogenesis, not as a proven direct activator of nucleolar output.

    “creatine is best interpreted as a plausible indirect supporter of ribosome biogenesis, not as a proven direct activator of nucleolar output [166,167]”

    From Ribosome Biogenesis as a Putative Bottleneck to Skeletal Muscle Hypertrophy: Mechanisms, Human Evidence, and Practical Modulators (2026) · cites this paper as [166]

    The Introduction discusses creatine’s effects on energy availability and factors that may contribute to muscle accretion; the Discussion reports a small hypertrophy effect. Neither section addresses ribosome biogenesis or direct activation of nucleolar output (searched: “ribosome biogenesis” and “nucleolar output”). (LLM, conf=0.72)

    Experimental — accuracy not yet measured

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Authors
Burke, R., Piñero, A., Coleman, M., Mohan, A., Sapuppo, M., Augustin, F., Aragon, A. A., Candow, D. G., Forbes, S. C., Swinton, P., & Schoenfeld, B. J.
Affiliations
  • Lehman College (US)
  • California State University, Northridge (US)
  • University of Regina (CA)
  • Brandon University (CA)
  • Robert Gordon University (GB)
Corresponding author
Schoenfeld, Brad J.
Venue
Nutrients
Publisher
MDPI AG
Published
2023-04-28
Volume
15
Issue
9
Pages
2116
ISSN
2072-6643 (ISSN-L)
OpenAlex
W4367317704
Cited by
80
References
45
Citations by year
2026: 31 · 2025: 31 · 2024: 13 · 2023: 5
FWCI
2.59
Type
journal article
Language
en
Open access
Locations
  • Nutrients (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Open Access Institutional Repository at Robert Gordon University (Robert Gordon University) (submittedVersion, cc-by)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Muscle metabolism and nutrition
  • Health Sciences › Medicine › Orthopedics and Sports Medicine › Sports Performance and Training
  • Health Sciences › Medicine › Physiology › Nutrition and Health in Aging
Keywords
creatine supplementation, resistance training, muscle hypertrophy, skeletal muscle mass, healthy adults, age differences
MeSH terms
Aged, Creatine, Humans, Hypertrophy, Muscles, Dietary Supplements, Resistance Training

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