This is a prospective single-center study to evaluate a diagnostic method. The main objective of the study is to evaluate the performance of calf circumference as a diagnostic method for sarcopenia in hospitalized elderly people, compared to a gold standard method which is X-ray absorptiometry. The study population are hospitalizing participants aged 75 years and older with an indication to search for sarcopenia.
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
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)
Single group
Dual-energy X-ray absorptiometry
RadiationWhole body x-ray absorptiometry
Measurement of muscle mass using calf circumference
Measurement with a tape measure (in centimetres) of the maximum circumference of the calf
Measurement of muscle mass using X-ray absorptiometry
Measurement of appendicular mass by X-ray absorptiometry in kilograms
Arm circumference
Measurement with a tape measure (in centimetres) of the maximum circumference of the arm
Circumference of the thigh
Measurement with a tape measure (in centimetres) of the maximum circumference of the thigh
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