{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,27]],"date-time":"2026-03-27T02:38:28Z","timestamp":1774579108142,"version":"3.50.1"},"reference-count":37,"publisher":"MDPI AG","issue":"11","license":[{"start":{"date-parts":[[2021,5,31]],"date-time":"2021-05-31T00:00:00Z","timestamp":1622419200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Applied Sciences"],"abstract":"<jats:p>This study aims to explore the use of force vs. time data obtained from an isometric handgrip test to match a frailty state based on the TFI score. BodyGrip, a novel prototype system, is used for handgrip strength over 10 s time interval tests. A cross-sectional study with a non-probabilistic sample of community-dwelling elderly women was conducted. The force\/time data collected from the dominant handgrip strength test, together with the Tilburg Frailty Indicator (TFI) test results, were used to train artificial neural networks. Different models were tested, and the frailty matching of TFI scores reached a minimum accuracy of 75%. Despite the small sample size, the BodyGrip system appears to be a promising tool for exploring new frailty-related features. The adopted strategy foresees ultimately configuring the system to be used as an expedite mode for identifying individuals at risk, allowing an easy, quick, and frequent person-centered care approach. Additionally, it is suitable for following up of the elderly in particular, and it may assume a relevant role in the mitigation of the increase in frailty evolution during and after the imposed isolation of the COVID-19 pandemic. Further use of the system will improve the robustness of the artificial neural network algorithm.<\/jats:p>","DOI":"10.3390\/app11115134","type":"journal-article","created":{"date-parts":[[2021,5,31]],"date-time":"2021-05-31T21:42:06Z","timestamp":1622497326000},"page":"5134","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["Handgrip Strength Time Profile and Frailty: An Exploratory Study"],"prefix":"10.3390","volume":"11","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-4514-5484","authenticated-orcid":false,"given":"Diana","family":"Urbano","sequence":"first","affiliation":[{"name":"INEGI, Institute of Science and Innovation in Mechanical and Industrial Engineering, Rua Dr. Roberto Frias, 400, 4200-465 Porto, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1118-9331","authenticated-orcid":false,"given":"Maria Teresa","family":"Restivo","sequence":"additional","affiliation":[{"name":"INEGI, Institute of Science and Innovation in Mechanical and Industrial Engineering, Rua Dr. Roberto Frias, 400, 4200-465 Porto, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8112-5689","authenticated-orcid":false,"given":"Manuel Romano","family":"Barbosa","sequence":"additional","affiliation":[{"name":"INEGI, Institute of Science and Innovation in Mechanical and Industrial Engineering, Rua Dr. Roberto Frias, 400, 4200-465 Porto, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3882-4908","authenticated-orcid":false,"given":"\u00c2ngela","family":"Fernandes","sequence":"additional","affiliation":[{"name":"Escola Superior de Sa\u00fade do Instituto Polit\u00e9cnico do Porto, \u00c1rea Cient\u00edfica de Terapia Ocupacional, Centro de investiga\u00e7\u00e3o em Reabilita\u00e7\u00e3o\u2014Centro de Estudos de Movimento e Atividade Humana, Rua Dr. Ant\u00f3nio Bernardino de Almeida, 400, 4200-072 Porto, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2745-6951","authenticated-orcid":false,"given":"Paulo","family":"Abreu","sequence":"additional","affiliation":[{"name":"INEGI, Institute of Science and Innovation in Mechanical and Industrial Engineering, Rua Dr. Roberto Frias, 400, 4200-465 Porto, Portugal"}]},{"given":"Maria de F\u00e1tima","family":"Chousal","sequence":"additional","affiliation":[{"name":"INEGI, Institute of Science and Innovation in Mechanical and Industrial Engineering, Rua Dr. Roberto Frias, 400, 4200-465 Porto, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7847-2401","authenticated-orcid":false,"given":"Tiago","family":"Coelho","sequence":"additional","affiliation":[{"name":"Escola Superior de Sa\u00fade do Instituto Polit\u00e9cnico do Porto, \u00c1rea Cient\u00edfica de Terapia Ocupacional, Centro de investiga\u00e7\u00e3o em Reabilita\u00e7\u00e3o\u2014Centro de Estudos de Movimento e Atividade Humana, Rua Dr. Ant\u00f3nio Bernardino de Almeida, 400, 4200-072 Porto, Portugal"}]}],"member":"1968","published-online":{"date-parts":[[2021,5,31]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"2145","DOI":"10.1016\/S0140-6736(15)00516-4","article-title":"The World report on ageing and health: A policy framework for healthy ageing","volume":"387","author":"Beard","year":"2016","journal-title":"Lancet"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"752","DOI":"10.1016\/S0140-6736(12)62167-9","article-title":"Frailty in elderly people","volume":"381","author":"Clegg","year":"2013","journal-title":"Lancet"},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"392","DOI":"10.1016\/j.jamda.2013.03.022","article-title":"Frailty consensus: A call to action","volume":"14","author":"Morley","year":"2013","journal-title":"J. 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