Conclusions
This study revealed some differences between OAs and HPs in terms of their perception of usability and acceptance of the COCARE system. OAs demonstrated higher acceptance of the system and better performance on the Senso and Senso Flex and found the setup of the Senso Flex to be easier than expected by most HPs. Furthermore, OAs were less concerned about the potential risk of falls compared with HPs.Disparities also emerged among the study sites concerning all usability and acceptance ratings, possibly stemming from cultural differences in the significance and proximity of family and the resulting motivation to integrate ICTs into everyday life.Several important requirements were identified by both OAs and HPs, which should be considered in further development efforts to enhance the usability of these and other technology-based telerehabilitation training systems. These include improvements in mat sensitivity, markings on the mat for a better orientation, stable internet connection, simplification of the instructions and results presentation for some assessments, adaptation of some games and their instructions (eg, video instructions) to be more usable and enjoyable for OAs (especially This work was funded by the European Union and the national funding authorities involved (Innosuisse [the Swiss Innovation Agency], the Italian Ministry of Health, and the Cyprus Research and Innovation Foundation) as part of the AAL Joint Program under grant aal-2020-7-145-CP. Open-access funding was provided by ETH Zürich. The authors did not use the generative artificial intelligence (AI) tool ChatGPT or other generative AI tools in any portion of the manuscript.Authors' Contributions: JS was responsible for conceptualization, methodology, data curation, formal analysis, and writing—original draft, whereas EG contributed to conceptualization, methodology, supervision, and writing—original draft. EDdB was responsible for methodology and cosupervision. ES, FR, IC, MF, SM, and TR contributed to methodology, data curation, and writing—review and editing. All authors revised the manuscript and approved the version submitted for publication, and they agree to be accountable for all aspects of the work.Conflicts of Interest: EDdB was a cofounder of Dividat, the spin-off company that created and developed the Continuum-of-Care system used in this study. However, no revenue was paid (or promised to be paid) directly to EDdB or his institution. SM was employed by the company Materia Group. The remaining authors declare no conflicts of interest.STROBE (Strengthening the Reporting of Observational Studies in Epidemiology) checklist.Usability protocol: comments, questions, and observations by older adults and the investigator.Performance of older adults in games and assessments.Usability protocol: comments, questions, and observations by health care professionals and the investigator.