Clinical Research Directory

Inclusion Criteria: * Age greater than or equal to 75 years * Hospitalization in a medical department or in the follow-up care or rehabilitation department of the Hospital Center of Orléans * Presence of an etiological criterion of undernutrition * Presence of a decrease in muscle strength Exclusion Criteria: * Presence of one of two phenotypic criteria for undernutrition other than sarcopenia, which are body mass index less than 22 kilogram per square meter and weight loss (≥ 5 percent over 1 month or ≥ 10 percent over 6 months or ≥10 percent compared with usual weight before the disease). * Refusal to participate in the study * Patient under legal protection * Impossible to perform X-ray absorptiometry (behavioral problems, functional constraints to climb on the DXA machine) * Person not affiliated to a social security system