Exercise and nutrition strategies for sarcopenia in older adults: evidence from a network meta-analysis based on EWGSOP and AWGS criteria
Open accessAbstract
Objectives: This network meta-analysis aimed to evaluate the comparative effectiveness of different exercise and nutritional interventions on muscle strength, skeletal muscle mass, and physical function in older adults with sarcopenia diagnosed according to the European Working Group on Sarcopenia in Older People and Asian Working Group for Sarcopenia criteria. Methods: We systematically searched PubMed, Embase, Web of Science, and the Cochrane Central Register of Controlled Trials up to July 2025. A Bayesian random-effects network meta-analysis was performed, with additional subgroup and meta-regression analyses. Certainty of evidence was assessed using the Confidence in Network Meta-Analysis (CINeMA) framework, and interventions were ranked according to their relative effectiveness and certainty of evidence. This study was registered in PROSPERO (CRD420251124534). Results: A total of 35 randomised controlled trials involving 2,331 participants were included. Exercise combined with nutritional supplementation was the most effective intervention for improving handgrip strength (MD = 3.69, 95% CrI 0.72 to 5.10; SUCRA 99.04%), gait speed (MD = 0.11, 95% CrI 0.03 to 0.17; SUCRA 87.12%), and appendicular skeletal muscle mass index (ASMI) (MD = 0.35, 95% CrI 0.19 to 0.49; SUCRA 99.82%), with improvements in handgrip strength and ASMI significantly greater than those achieved with Exercise or Nutrition alone. Exercise alone improved handgrip strength, gait speed, and ASMI, whereas protein supplementation alone improved handgrip strength and gait speed but had no significant effect on ASMI. Subgroup analyses indicated that resistance training with protein supplementation produced the most significant improvements in handgrip strength and gait speed. In contrast, resistance training with protein and vitamin D supplementation was most effective for improving ASMI. Meta-regression analysis did not identify any significant sources of heterogeneity. Conclusion: These findings support combined exercise and nutritional interventions as a preferred treatment option for improving muscle strength, muscle mass, and physical function in older adults with sarcopenia. However, the overall certainty of the evidence ranged from low to very low. In particular, multicomponent exercise programmes centred on resistance training and combined with protein supplementation may offer superior benefits for enhancing muscle strength and physical function.
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The effects of GLP-1 receptor agonists on muscle appear to be mediated at least in part by reductions in systemic and local low-grade inflammation and improvements in metabolic and mitochondrial efficiency.
“These effects appear to be mediated, at least in part, by reductions in systemic and local low-grade inflammation and improvements in metabolic and mitochondrial efficiency [56,57,58].”
From A Narrative Review on GLP-1 Receptor Agonists for Obesity in Older Women: Maximizing Weight Loss While Preserving Lean Mass (2026) · cites this paper as [58]
The Introduction and Discussion address exercise and nutritional interventions for sarcopenia, not GLP-1 receptor agonists. Searches for GLP-1, inflammation, and mitochondrial efficiency found no passage in our copy addressing the proposed mechanism. The paper’s discussion of HIIT (Discussion; page unavailable) does not establish it. (LLM, conf=0.76)
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- Authors
- Zhao, R., Dong, Y., Zheng, Q., & Yao, J.
- Affiliations
- Guangxi Normal University (CN)
- China Three Gorges University (CN)
- Corresponding author
- Yao, Jiwei
- Venue
- Frontiers in Nutrition
- Publisher
- Frontiers Media SA
- Published
- 2025-10-16
- Volume
- 12
- Pages
- 1685014-1685014
- ISSN
- 2296-861X (ISSN-L)
- PMC
- PMC12571659
- OpenAlex
- W4415234443
- Cited by
- 16
- References
- 58
- Citations by year
- 2026: 15 · 2025: 1
- FWCI
- 2.09
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Licence
- Locations
- Frontiers in Nutrition (publishedVersion, cc-by)
- Europe PMC (PubMed Central) (publishedVersion, cc-by)
- PubMed (publishedVersion)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
- Topics
- Health Sciences › Medicine › Physiology › Nutrition and Health in Aging
- Health Sciences › Medicine › Geriatrics and Gerontology › Frailty in Older Adults
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Muscle Physiology and Disorders
- Keywords
- sarcopenia, older adults, resistance training, protein supplementation, vitamin D supplementation, grip strength, appendicular skeletal muscle mass index, walking speed, physical function, EWGSOP criteria, AWGS criteria, meta-regression
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