{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,7]],"date-time":"2026-05-07T16:16:41Z","timestamp":1778170601532,"version":"3.51.4"},"reference-count":20,"publisher":"MDPI AG","issue":"14","license":[{"start":{"date-parts":[[2023,7,17]],"date-time":"2023-07-17T00:00:00Z","timestamp":1689552000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"European Regional Development Fund of the EU","award":["5131369"],"award-info":[{"award-number":["5131369"]}]},{"name":"Greek national funds through the Operational Program Competitiveness, Entrepreneurship and Innovation","award":["5131369"],"award-info":[{"award-number":["5131369"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>Impaired hand function is one of the most frequently persistent consequences of stroke. Throughout the rehabilitation process, physicians consistently monitor patients and perform kinematic evaluations in order to assess their overall progress in motor recovery. The Sollerman Hand Function Test (SHT) is a valuable assessment tool used to evaluate a patient\u2019s capacity to engage in daily activities. It holds great importance in the field of medicine as it aids in the assessment of treatment effectiveness. Nevertheless, the requirement for a therapist\u2019s physical presence and the use of specialized materials make the test time-consuming and reliant on clinic availability. In this paper, we propose a computer-vision-based approach to the \u201cWrite with a pen\u201d sub-test, originally included in the SHT. Our implementation does not require extra hardware equipment and is able to run on lower-end hardware specifications, using a single RGB camera. We have incorporated all the original test\u2019s guidelines and scoring methods into our application, additionally providing an accurate hand spasticity evaluator. After briefly presenting the current research approaches, we analyze and demonstrate our application, as well as discuss some issues and limitations. Lastly, we share some preliminary findings from real-world application usage conducted at the University campus and outline our future plans.<\/jats:p>","DOI":"10.3390\/s23146449","type":"journal-article","created":{"date-parts":[[2023,7,17]],"date-time":"2023-07-17T01:06:36Z","timestamp":1689555996000},"page":"6449","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":15,"title":["Sollerman Hand Function Sub-Test \u201cWrite with a Pen\u201d: A Computer-Vision-Based Approach in Rehabilitation Assessment"],"prefix":"10.3390","volume":"23","author":[{"given":"Orestis N.","family":"Zestas","sequence":"first","affiliation":[{"name":"Communication Networks and Applications Laboratory (CNALab), Department of Informatics and Telecommunications, University of Peloponnese, 221 00 Tripoli, Greece"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5799-3558","authenticated-orcid":false,"given":"Nikolaos D.","family":"Tselikas","sequence":"additional","affiliation":[{"name":"Communication Networks and Applications Laboratory (CNALab), Department of Informatics and Telecommunications, University of Peloponnese, 221 00 Tripoli, Greece"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2023,7,17]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"795","DOI":"10.1016\/S1474-4422(21)00252-0","article-title":"Global, regional, and national burden of stroke and its risk factors, 1990\u20132019: A systematic analysis for the Global Burden of Disease Study 2019","volume":"20","author":"Feigin","year":"2021","journal-title":"Lancet Neurol."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"1279","DOI":"10.1161\/01.STR.32.6.1279","article-title":"Estimates of the Prevalence of Acute Stroke Impairments and Disability in a Multiethnic Population","volume":"32","author":"Coshall","year":"2001","journal-title":"Stroke"},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"1840","DOI":"10.1161\/01.STR.0000019289.15440.F2","article-title":"Persisting Consequences of Stroke Measured by the Stroke Impact Scale","volume":"33","author":"Lai","year":"2002","journal-title":"Stroke"},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"e98","DOI":"10.1161\/STR.0000000000000098","article-title":"Guidelines for Adult Stroke Rehabilitation and Recovery: A Guideline for Healthcare Professionals from the American Heart Association\/American Stroke Association","volume":"47","author":"Winstein","year":"2016","journal-title":"Stroke"},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"167","DOI":"10.3109\/02844319509034334","article-title":"Sollerman Hand Function Test: A Standardised Method and its Use in Tetraplegic Patients","volume":"29","author":"Sollerman","year":"1995","journal-title":"Scand. 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