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Declining muscle mass is not always accompanied by declining muscle strength in older adults, challenging the notion that low muscle mass is the sole criterion for diagnosing sarcopenia.

This review aims to find out the relationships between muscle mass and muscle strength with physical performance in older adults.

This article was a systematic review using Preferred Reporting Items for Systematic Reviews and Meta-Analysis guidelines.

We do a systematic search of observational studies that are published between 2013 and August 2023 in PubMed, ScienceDirect, Sage journal, Tripdatabase, Cochrane Library, Embase, and CINAHL. Two reviewers selected and extracted data independently and an association measure was recorded from included studies.

The review analyzed 17 observational studies conducted between 2013 and September …