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Article History

Received: 25 September 2025

Accepted: 25 February 2026

First Online: 4 March 2026

Declarations

:

: In consultation with the German Pension Insurance (Deutsche Rentenversicherung Bund), formal ethical approval was not required for this project, as it focused on the development of practice recommendations and stakeholder consultation without the collection of sensitive personal or patient-level health data. For participatory components involving rehabilitation patients, all participants were fully informed about the aims of the project, data protection procedures, and the voluntary nature of participation, and written informed consent to participate was obtained prior to their involvement.

: Not applicable.

: The authors declare no competing interests.