Protein plus resistance exercise showed muscle-related changes in a small review
A review reported changes in strength, body composition and laboratory markers, but the abstract does not establish how much protein added beyond exercise.
Based on the published abstract. The full paper may contain additional methods, results and limitations.
The 30-second takeaway
The review reported gains in strength, fat-free mass and muscle fiber size alongside changes in inflammatory and growth-related biomarkers when protein supplements were paired with resistance exercise. However, the abstract does not describe comparison treatments or effect sizes. It therefore cannot establish protein's added contribution or the size of any clinical benefit.
The included trials varied in duration and sample size. Abstract-only access gives no numerical effects, confidence intervals or trial-level bias results, limiting confidence in the review's broad conclusions about preventing or treating sarcopenia.
Laboratory and functional outcomes were distinct
Reported changes included lower myostatin and activin and higher follistatin, alongside shifts in inflammatory markers. These laboratory measures accompanied changes in strength and body composition; they do not by themselves establish better daily functioning.
The combination needs a clear comparator
The authors describe the combined approach as synergistic, meaning the components may work together. Without the control conditions and comparative estimates, the abstract does not show whether the combination exceeded the effects of its separate components.
The original publication
Synergistic Effects of Protein Intake and Exercise on Biomarkers of Sarcopenia: A Systematic Review.
Cruz-Pierard S, Iñiguez-Jiménez S
Biomolecules · 2026
- PubMed ID
- 41750266
- Record checked
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