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Clin Geriatr Med. 2011 Aug;27(3):341-53. doi: 10.1016/j.cger.2011.04.001. Epub 2011 Jun 8.

Toward a definition of sarcopenia.

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Clinical Nutrition and Metabolism, Department of Public Health and Caring Sciences, Uppsala University, Uppsala Science Park, Dag Hammarskjöldsväg, Sweden.


The definition of sarcopenia has been thoroughly discussed by scientific stakeholders and industry representatives to increase the clinical applicability of the concept. The pooled consensus from 3 of 5 recent and parallel processes, of which 2 are pending, is that sarcopenia is mainly, but not only, an age-related condition defined by the combined presence of reduced muscle mass and muscle function. Contributing factors to sarcopenia are senescence, chronic disease, physical inactivity, and poor food intake. Cachexia may be considered as one etiologic pathway of an accelerated sarcopenia. The adjusted and extended definitions of sarcopenia promote the clinical use of the concept.

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