Perceptions of sarcopenia in patients, health and care professionals, and the public: a scoping review of studies from different countries.

Rationale and objective: Perceptions of sarcopenia have rarely been explored, yet understanding these will be key for successful translation of sarcopenia research findings into meaningful benefits for patients and the public. This scoping review aimed to explore how sarcopenia is perceived amongst patients, health and care professionals (HCP), and the public in different countries.

Methods: Seven electronic databases were searched from inception up to December 2023 with no geographical or language limitations. Studies were included if they were peer-reviewed research of any design where the focus related to perceptions of sarcopenia. Studies using alternative descriptors only, such as "skeletal muscle weakness/loss" were excluded. Study characteristics were charted, and thematic synthesis conducted.

Results: Following independent screening of 11,533 records, 20 articles were included in this review representing 19 countries. Five studies focused on patient perceptions, 11 investigated HCP, and four the public. Three key themes were identified: (1) Low awareness of sarcopenia-among all groups, its nature as a disease was contested. (2) The "know-do" gap in healthcare-even where knowledge among HCP existed, this had not translated into clinical practice, in part, due to perceptions of sarcopenia and its management. (3) Experiencing weakness-living with sarcopenia had physical and psychological sequalae.

Key conclusions: These findings reveal perceptions that may be contributing to the slow adoption of sarcopenia prevention, screening, diagnosis, and management. Addressing these areas has the potential to aid translation of sarcopenia research findings into improved clinical care and benefits for patients and the public.