The main objective of the study is to estimate, by means of portable ultrasound, parameters of muscle quantity and quality (anterior rectus femoris muscle area, width and echostructure ) in older adults hospitalized in Acute Geriatric Units for medical reasons.
Observational prospective study in older adults admitted to an Acute Geriatric Unit, in which sarcopenia will be evaluated by ultrasound in the anterior rectus femoris muscle.