{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T02:55:23Z","timestamp":1760151323405,"version":"build-2065373602"},"reference-count":47,"publisher":"MDPI AG","issue":"5","license":[{"start":{"date-parts":[[2022,3,7]],"date-time":"2022-03-07T00:00:00Z","timestamp":1646611200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>The negative effects of SARS-CoV-2 infection on the musculoskeletal system include symptoms of fatigue and sarcopenia. The aim of this study is to assess the impact of COVID-19 on foot muscle strength and evaluate the reproducibility of peak ankle torque measurements in time by using a custom-made electronic dynamometer. In this observational cohort study, we compare two groups of four participants, one exposed to COVID-19 throughout measurements and one unexposed. Peak ankle torque was measured using a portable custom-made electronic dynamometer. Ankle plantar flexor and dorsiflexor muscle strength was captured for both feet at different ankle angles prior and post COVID-19. Average peak torque demonstrated no significant statistical differences between initial and final moment for both groups (p = 0.945). An increase of 4.8%, p = 0.746 was obtained in the group with COVID-19 and a decrease of 1.3%, p = 0.953 was obtained in the group without COVID-19. Multivariate analysis demonstrated no significant differences between the two groups (p = 0.797). There was a very good test\u2013retest reproducibility between the measurements in initial and final moments (ICC = 0.78, p &lt; 0.001). In conclusion, peak torque variability is similar in both COVID-19 and non-COVID-19 groups and the custom-made electronic dynamometer is a reproducible method for repetitive ankle peak torque measurements.<\/jats:p>","DOI":"10.3390\/s22052073","type":"journal-article","created":{"date-parts":[[2022,3,9]],"date-time":"2022-03-09T01:50:53Z","timestamp":1646790653000},"page":"2073","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["A Custom-Made Electronic Dynamometer for Evaluation of Peak Ankle Torque after COVID-19"],"prefix":"10.3390","volume":"22","author":[{"given":"Iulia Iovanca","family":"Dragoi","sequence":"first","affiliation":[{"name":"Department of Vascular Surgery and Reconstructive Microsurgery, \u201cVictor Babes\u201d University of Medicine and Pharmacy, 2 Eftimie Murgu Square, 300041 Timisoara, Romania"}]},{"given":"Florina Georgeta","family":"Popescu","sequence":"additional","affiliation":[{"name":"Discipline of Occupational Health, \u201cVictor Babes\u201d University of Medicine and Pharmacy, 2 Eftimie Murgu Square, 300041 Timisoara, Romania"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7267-3069","authenticated-orcid":false,"given":"Teodor","family":"Petrita","sequence":"additional","affiliation":[{"name":"Department of Communications, Politehnica University Timisoara, 2 Vasile Parvan, 300223 Timisoara, Romania"}]},{"given":"Florin","family":"Alexa","sequence":"additional","affiliation":[{"name":"Department of Communications, Politehnica University Timisoara, 2 Vasile Parvan, 300223 Timisoara, Romania"}]},{"given":"Romulus Fabian","family":"Tatu","sequence":"additional","affiliation":[{"name":"Department of Orthopaedics-Traumatology-Urology and Imagistics, \u201cVictor Babes\u201d University of Medicine and Pharmacy, 2 Eftimie Murgu Square, 300041 Timisoara, Romania"}]},{"given":"Cosmina Ioana","family":"Bondor","sequence":"additional","affiliation":[{"name":"Department of Medical Informatics and Biostatistics, University of Medicine and Pharmacy \u201cIuliu Hatieganu\u201d, 8 Victor Babes, 400012 Cluj-Napoca, Romania"}]},{"given":"Carmen","family":"Tatu","sequence":"additional","affiliation":[{"name":"Department of Functional Sciences, Physiology, Center of Immuno-Physiology and Biotechnologies, \u201cVictor Babes\u201d University of Medicine and Pharmacy, 2 Eftimie Murgu Square, 300041 Timisoara, Romania"}]},{"given":"Frank L.","family":"Bowling","sequence":"additional","affiliation":[{"name":"Department of Vascular Surgery and Reconstructive Microsurgery, \u201cVictor Babes\u201d University of Medicine and Pharmacy, 2 Eftimie Murgu Square, 300041 Timisoara, Romania"},{"name":"Department of Surgery & Translational Medicine, Faculty of Medical and Human Sciences, University of Manchester, Oxford Rd., Manchester M13 9PL, UK"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9213-4580","authenticated-orcid":false,"given":"Neil D.","family":"Reeves","sequence":"additional","affiliation":[{"name":"Research Centre for Musculoskeletal Science & Sports Medicine, Department of Life Sciences, Faculty of Science and Engineering, Manchester Metropolitan University, Oxford Rd., Manchester M1 5GD, UK"}]},{"given":"Mihai","family":"Ionac","sequence":"additional","affiliation":[{"name":"Department of Vascular Surgery and Reconstructive Microsurgery, \u201cVictor Babes\u201d University of Medicine and Pharmacy, 2 Eftimie Murgu Square, 300041 Timisoara, Romania"}]}],"member":"1968","published-online":{"date-parts":[[2022,3,7]]},"reference":[{"key":"ref_1","first-page":"412","article-title":"European Working Group on Sarcopenia in Older People. 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