1) Aging-associated disease 
Sarcopenia (from Greek σάρξ sarx, `flesh` and πενία penia, `poverty`) is the degenerative loss of skeletal muscle mass (0.5-1% loss per year after the age of 25), quality, and strength associated with aging. Sarcopenia is a component of the frailty syndrome. It can be differentiated from cachexia in that cachexia includes malaise and ...
Type: Term Pronunciation: sar-kō-pē′nē-ă Definitions: 1. Loss of skeletal mass normally seen in association with aging.