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The challenge is not only to increase life expectancy, but also to ensure that the older adults can fully enjoy that moment in their lives, living where they wish to (private home, nursing home, \u2026). Physical activity (PA) is a representative parameter of a person\u2019s state of health, especially when we are getting older, because it plays an important role in the prevention of diseases, and that is the reason why it is promoted in older adults. One of the goals of this work is to assess the feasibility of objectively measuring the PA levels of older adults wherever they live. In addition, this work proposes long-term monitoring that helps to gather daily activity patterns. We fuse inertial measurements with other technologies (WiFi- and ultrasonic-based location) in order to provide not only PA, but also information about the place where the activities are carried out, including both room-level location and precise positioning (depending on the technology used). With this information, we would be able to generate information about the person\u2019s daily routines which can be very useful for the early detection of physical or cognitive impairment.<\/jats:p>","DOI":"10.3390\/s23208646","type":"journal-article","created":{"date-parts":[[2023,10,23]],"date-time":"2023-10-23T10:34:20Z","timestamp":1698057260000},"page":"8646","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":8,"title":["Multisensory System for Long-Term Activity Monitoring to Facilitate Aging-in-Place"],"prefix":"10.3390","volume":"23","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-0050-2807","authenticated-orcid":false,"given":"Sergio","family":"Lluva-Plaza","sequence":"first","affiliation":[{"name":"Department of Electronics, University of Alcal\u00e1, 28801 Madrid, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0713-0054","authenticated-orcid":false,"given":"Ana","family":"Jim\u00e9nez-Mart\u00edn","sequence":"additional","affiliation":[{"name":"Department of Electronics, University of Alcal\u00e1, 28801 Madrid, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2071-6260","authenticated-orcid":false,"given":"David","family":"Gualda-G\u00f3mez","sequence":"additional","affiliation":[{"name":"Department of Signal Theory and Communications, University Rey Juan Carlos, 28943 Fuenlabrada, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5900-0978","authenticated-orcid":false,"given":"Jos\u00e9 Manuel","family":"Villadangos-Carrizo","sequence":"additional","affiliation":[{"name":"Department of Electronics, University of Alcal\u00e1, 28801 Madrid, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7121-8651","authenticated-orcid":false,"given":"Juan Jes\u00fas","family":"Garc\u00eda-Dom\u00ednguez","sequence":"additional","affiliation":[{"name":"Department of Electronics, University of Alcal\u00e1, 28801 Madrid, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2023,10,23]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"133","DOI":"10.1016\/j.futures.2016.07.002","article-title":"Envisioning the future for older adults: Autonomy, health, well-being, and social connectedness with technology support","volume":"87","author":"Rogers","year":"2017","journal-title":"Futures"},{"key":"ref_2","doi-asserted-by":"crossref","unstructured":"Binette, J., and Kerri, V. 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