{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,19]],"date-time":"2026-03-19T02:19:45Z","timestamp":1773886785489,"version":"3.50.1"},"reference-count":36,"publisher":"MDPI AG","issue":"8","license":[{"start":{"date-parts":[[2018,8,11]],"date-time":"2018-08-11T00:00:00Z","timestamp":1533945600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001871","name":"Funda\u00e7\u00e3o para a Ci\u00eancia e a Tecnologia","doi-asserted-by":"publisher","award":["SFRH\/BPD\/102696\/2014"],"award-info":[{"award-number":["SFRH\/BPD\/102696\/2014"]}],"id":[{"id":"10.13039\/501100001871","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100003329","name":"Ministerio de Econom\u00eda y Competitividad","doi-asserted-by":"publisher","award":["TIN2016-76515-R"],"award-info":[{"award-number":["TIN2016-76515-R"]}],"id":[{"id":"10.13039\/501100003329","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100003329","name":"Ministerio de Econom\u00eda y Competitividad","doi-asserted-by":"publisher","award":["TIN2015-65515-C4-1-R"],"award-info":[{"award-number":["TIN2015-65515-C4-1-R"]}],"id":[{"id":"10.13039\/501100003329","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>The great demographic change leading to an ageing society demands technological solutions to satisfy the increasing varied elderly needs. This paper presents PHAROS, an interactive robot system that recommends and monitors physical exercises designed for the elderly. The aim of PHAROS is to be a friendly elderly companion that periodically suggests personalised physical activities, promoting healthy living and active ageing. Here, it is presented the PHAROS architecture, components and experimental results. The architecture has three main strands: a Pepper robot, that interacts with the users and records their exercises performance; the Human Exercise Recognition, that uses the Pepper recorded information to classify the exercise performed using Deep Leaning methods; and the Recommender, a smart-decision maker that schedules periodically personalised physical exercises in the users\u2019 agenda. The experimental results show a high accuracy in terms of detecting and classifying the physical exercises (97.35%) done by 7 persons. Furthermore, we have implemented a novel procedure of rating exercises on the recommendation algorithm. It closely follows the users\u2019 health status (poor performance may reveal health problems) and adapts the suggestions to it. The history may be used to access the physical condition of the user, revealing underlying problems that may be impossible to see otherwise.<\/jats:p>","DOI":"10.3390\/s18082633","type":"journal-article","created":{"date-parts":[[2018,8,13]],"date-time":"2018-08-13T11:27:13Z","timestamp":1534159633000},"page":"2633","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":66,"title":["PHAROS\u2014PHysical Assistant RObot System"],"prefix":"10.3390","volume":"18","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-6170-4912","authenticated-orcid":false,"given":"Angelo","family":"Costa","sequence":"first","affiliation":[{"name":"ALGORITMI Center, University of Minho, 4704-553 Braga, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4495-6912","authenticated-orcid":false,"given":"Ester","family":"Martinez-Martin","sequence":"additional","affiliation":[{"name":"RoViT, University of Alicante, 03690 San Vicente del Raspeig (Alicante), Spain"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6805-3633","authenticated-orcid":false,"given":"Miguel","family":"Cazorla","sequence":"additional","affiliation":[{"name":"RoViT, University of Alicante, 03690 San Vicente del Raspeig (Alicante), Spain"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2743-6037","authenticated-orcid":false,"given":"Vicente","family":"Julian","sequence":"additional","affiliation":[{"name":"Departamento Sistemas Inform\u00e1ticos y Computaci\u00f3n, Universitat Polit\u00e8cnica de Val\u00e8ncia, 46022 Valencia, Spain"}]}],"member":"1968","published-online":{"date-parts":[[2018,8,11]]},"reference":[{"key":"ref_1","unstructured":"United Nations (2018, June 28). 2017 Revision of World Population Prospects. 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