{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,18]],"date-time":"2026-08-18T04:45:36Z","timestamp":1787028336318,"version":"build-2736575974"},"reference-count":94,"publisher":"MDPI AG","issue":"24","license":[{"start":{"date-parts":[[2021,12,20]],"date-time":"2021-12-20T00:00:00Z","timestamp":1639958400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["IJERPH"],"abstract":"<jats:p>The global population aged 60 years and over rises due to increasing life expectancy. More older adults suffer from \u201cgeriatric giants\u201d. Mobility limitations, including immobility and instability, are usually accompanied by physical and cognitive decline, and can be further associated with gait changes. Improvements in physical and cognitive functions can be achieved with virtual reality exergame environments. This study investigated the usability of the newly developed VITAAL exergame in mobility-impaired older adults aged 60 years and older. Usability was evaluated with a mixed-methods approach including a usability protocol, the System Usability Scale, and a guideline-based interview. Thirteen participants (9 female, 80.5 \u00b1 4.9 years, range: 71\u201389) tested the exergame and completed the measurement. The System Usability Scale was rated in a marginal acceptability range (58.3 \u00b1 16.5, range: 30\u201385). The usability protocol and the guideline-based interview revealed general positive usability. The VITAAL exergame prototype received positive feedback and can be considered usable by older adults with mobility limitations. However, minor improvements to the system in terms of design, instructions, and technical aspects should be taken into account. The results warrant testing of the feasibility of the adapted multicomponent VITAAL exergame, and its effects on physical and cognitive functions, in comparison with conventional training, should be studied.<\/jats:p>","DOI":"10.3390\/ijerph182413422","type":"journal-article","created":{"date-parts":[[2021,12,20]],"date-time":"2021-12-20T08:43:32Z","timestamp":1639989812000},"page":"13422","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":21,"title":["Usability Study of a Multicomponent Exergame Training for Older Adults with Mobility Limitations"],"prefix":"10.3390","volume":"18","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-0293-4806","authenticated-orcid":false,"given":"Melanie","family":"Thalmann","sequence":"first","affiliation":[{"name":"Department of Health Sciences and Technology, Institute of Human Movement Science and Sport, ETH Z\u00fcrich, 8093 Zurich, Switzerland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lisa","family":"Ringli","sequence":"additional","affiliation":[{"name":"Department of Health Sciences and Technology, Institute of Human Movement Science and Sport, ETH Z\u00fcrich, 8093 Zurich, Switzerland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Manuela","family":"Adcock","sequence":"additional","affiliation":[{"name":"Department of Health Sciences and Technology, Institute of Human Movement Science and Sport, ETH Z\u00fcrich, 8093 Zurich, Switzerland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nathalie","family":"Swinnen","sequence":"additional","affiliation":[{"name":"Department of Rehabilitation Sciences, KU Leuven, 3001 Leuven, Belgium"},{"name":"University Psychiatric Centre, KU Leuven, 3070 Kortenberg, Belgium"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jacqueline","family":"de Jong","sequence":"additional","affiliation":[{"name":"Physio SPArtos, 3800 Interlaken, Switzerland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chantal","family":"Dumoulin","sequence":"additional","affiliation":[{"name":"School of Rehabilitation, Faculty of Medicine, Universit\u00e9 de Montr\u00e9al, Montreal, QC H3T 1J4, Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8133-0789","authenticated-orcid":false,"given":"V\u00e2nia","family":"Guimar\u00e3es","sequence":"additional","affiliation":[{"name":"Fraunhofer Portugal AICOS, 4200-135 Porto, Portugal"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6542-7385","authenticated-orcid":false,"given":"Eling D.","family":"de Bruin","sequence":"additional","affiliation":[{"name":"Department of Health Sciences and Technology, Institute of Human Movement Science and Sport, ETH Z\u00fcrich, 8093 Zurich, Switzerland"},{"name":"Division of Physiotherapy, Department of Neurobiology, Care Sciences and Society, Karolinska Institute, 171 77 Stockholm, Sweden"},{"name":"Department of Health, OST\u2014Eastern Swiss University of Applied Sciences, 9001 St. Gallen, Switzerland"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2021,12,20]]},"reference":[{"key":"ref_1","unstructured":"World Health Organization (2020). 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