Quality of life and sarcopenic patients.

Sarcopenia is defined as a progressive and generalised loss of muscle strength, muscle mass and physical performance with advancing age. Among the multiple consequences of sarcopenia, the reduction in the quality of life associated with it can undeniably be considered as a major consequence. Quality of life is measured via generic or specific questionnaires. Current research, mainly using so-called "generic" questionnaires, has identified a reduced quality of life in patients with primary age-related sarcopenia, mainly in areas related to functional status and physical performance. A specific quality of life questionnaire could, in combination with a generic questionnaire, provide more precise data on the impact that sarcopenia has on patient's quality of life. The first quality of life questionnaire specific to sarcopenia, the SarQoL, was developed in 2015. Psychometric validation of the SarQoL has been carried out in several international patient populations indicating excellent internal consistency, reliability and convergent validity and sensitivity to change, as well as an absence of floor and ceiling effects. In combination with a generic questionnaire, this specific questionnaire is therefore suitable for measuring the quality of life of populations suffering from sarcopenia, both in research and in clinical practice and in the context of both observational or interventional evaluations.