Ethics
The study protocol was approved by the ethic committee of the Friedrich-Alexander-Universität Erlangen-Nürnberg, Germany (FAU). The study was registered at ClinicalTrials.gov (identifier: NCT04362514; 27/04/2022) and followed the principles set out in the Helsinki declaration. Prior to the assessments at the beginning of the baseline visit, all participants received a written information sheet containing the most relevant study components and had to sign informed consent forms prior. Changes to the protocol were reported to ClinicalTrials.gov and approved by the ethical committee. During the period of study participation, all participants were provided insurance for the intervention and all assessments.