Document is current

Article History

Received: 23 January 2023

Accepted: 9 March 2023

First Online: 25 April 2023

Declarations

:

: The investigation conforms to the principles outlined in the Declaration of Helsinki. The Ethics Committee of the University of Lübeck (21–462) gave approval to the study protocol. Participation in the study is voluntary. Written and informed consent is necessary to participate in the study. Model consent forms and patient information forms given to the participants are presented as Additional files InternalRef removed and InternalRef removed. The study has been registered in the German Clinical Trials Register (DRKS00028770). This paper contains the original study protocol. Any substantial modifications to the study protocol will be communicated to the Ethics Committee of the University of Lübeck for approval prior to implementation. These amendments will be documented in detail in the German Clinical Trials Register and will be described transparently in trial reports.

: Not applicable, because no personal data is used in this manuscript.

: MB has received funding for studies on rehabilitation from the German Research Foundation, the Federal Ministry of Labor and Social Affairs, as well as the Federal German Pension Insurance and the Pension Insurance North, Berlin-Brandenburg and Knappschaft-Bahn-See. GK is chief physician at the outpatient rehabilitation center in Friedrichshafen and chairman of the Central Functional Area Medicine at the Nanz Medico GmbH & Co. KG group—all participants are derived from outpatient rehabilitation centers which belong to the Nanz Medico GmbH & Co. KG group. SK is employed at the German company, GOREHA GmbH, which distributes the Caspar application for the digital rehabilitation evaluated in this study. RA and SL declare that they have no competing interests.