{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,12]],"date-time":"2026-05-12T08:43:59Z","timestamp":1778575439039,"version":"3.51.4"},"reference-count":29,"publisher":"MDPI AG","issue":"11","license":[{"start":{"date-parts":[[2020,6,2]],"date-time":"2020-06-02T00:00:00Z","timestamp":1591056000000},"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>Gait analysis is necessary to diagnose movement disorders. In order to reduce the costs of three-dimensional motion capture systems, new low-cost methods of motion analysis have been developed. The purpose of this study was to evaluate the inter- and intra-rater reliability of Kinovea\u00ae and the agreement with a three-dimensional motion system for detecting the joint angles of the hip, knee and ankle during the initial contact phase of walking. Fifty healthy subjects participated in this study. All participants were examined twice with a one-week interval between the two appointments. The motion data were recorded using the VICON Motion System\u00ae and digital video cameras. The intra-rater reliability showed a good correlation for the hip, the knee and the ankle joints (Intraclass Correlation Coefficient, ICC &gt; 0.85) for both observers. The ICC for the inter-rater reliability was &gt;0.90 for the hip, the knee and the ankle joints. The Bland\u2013Altman plots showed that the magnitude of disagreement was approximately \u00b15\u00b0 for intra-rater reliability, \u00b12.5\u00b0 for inter-rater reliability and around \u00b12.5\u00b0 to \u00b15\u00b0 for Kinovea\u00ae versus Vicon\u00ae. The ICC was good for the hip, knee and ankle angles registered with Kinovea\u00ae during the initial contact of walking for both observers (intra-rater reliability) and higher for the agreement between observers (inter-rater reliability). However, the Bland\u2013Altman plots showed disagreement between observers, measurements and systems (Kinovea\u00ae vs. three-dimensional motion system) that should be considered in the interpretation of clinical evaluations.<\/jats:p>","DOI":"10.3390\/s20113154","type":"journal-article","created":{"date-parts":[[2020,6,3]],"date-time":"2020-06-03T04:12:09Z","timestamp":1591157529000},"page":"3154","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":150,"title":["Reliability of Kinovea\u00ae Software and Agreement with a Three-Dimensional Motion System for Gait Analysis in Healthy Subjects"],"prefix":"10.3390","volume":"20","author":[{"given":"Pilar","family":"Fern\u00e1ndez-Gonz\u00e1lez","sequence":"first","affiliation":[{"name":"International Doctorate School, Rey Juan Carlos University, 28933 Madrid, Spain"},{"name":"Motion Analysis, Ergonomics, Biomechanics and Motor Control Laboratory (LAMBECOM), Department of Physical Therapy, Occupational Therapy, Rehabilitation and Physical Medicine, Faculty of Health Sciences, Universidad Rey Juan Carlos, 28922 Madrid, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Aikaterini","family":"Koutsou","sequence":"additional","affiliation":[{"name":"Motion Analysis, Ergonomics, Biomechanics and Motor Control Laboratory (LAMBECOM), Department of Physical Therapy, Occupational Therapy, Rehabilitation and Physical Medicine, Faculty of Health Sciences, Universidad Rey Juan Carlos, 28922 Madrid, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9507-2717","authenticated-orcid":false,"given":"Alicia","family":"Cuesta-G\u00f3mez","sequence":"additional","affiliation":[{"name":"Motion Analysis, Ergonomics, Biomechanics and Motor Control Laboratory (LAMBECOM), Department of Physical Therapy, Occupational Therapy, Rehabilitation and Physical Medicine, Faculty of Health Sciences, Universidad Rey Juan Carlos, 28922 Madrid, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mar\u00eda","family":"Carratal\u00e1-Tejada","sequence":"additional","affiliation":[{"name":"Motion Analysis, Ergonomics, Biomechanics and Motor Control Laboratory (LAMBECOM), Department of Physical Therapy, Occupational Therapy, Rehabilitation and Physical Medicine, Faculty of Health Sciences, Universidad Rey Juan Carlos, 28922 Madrid, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Juan Carlos","family":"Miangolarra-Page","sequence":"additional","affiliation":[{"name":"Motion Analysis, Ergonomics, Biomechanics and Motor Control Laboratory (LAMBECOM), Department of Physical Therapy, Occupational Therapy, Rehabilitation and Physical Medicine, Faculty of Health Sciences, Universidad Rey Juan Carlos, 28922 Madrid, Spain"},{"name":"Physical Medicine and Rehabilitation Service of the University Hospital of Fuenlabrada, 28942 Madrid, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8616-5505","authenticated-orcid":false,"given":"Francisco","family":"Molina-Rueda","sequence":"additional","affiliation":[{"name":"Motion Analysis, Ergonomics, Biomechanics and Motor Control Laboratory (LAMBECOM), Department of Physical Therapy, Occupational Therapy, Rehabilitation and Physical Medicine, Faculty of Health Sciences, Universidad Rey Juan Carlos, 28922 Madrid, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2020,6,2]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"501","DOI":"10.1016\/j.gaitpost.2010.11.025","article-title":"Video gait analysis for ambulatory children with cerebral palsy: Why, when, where and how!","volume":"33","author":"Harvey","year":"2011","journal-title":"Gait Posture"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"334","DOI":"10.1016\/j.jneumeth.2008.12.016","article-title":"Development and testing of the Gait Assessment and Intervention Tool (G.A.I.T.): A measure of coordinated gait components","volume":"178","author":"Daly","year":"2009","journal-title":"J. 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