A Beta Version of an Application Based on Computer Vision for the Assessment of Knee Valgus Angle: A Validity and Reliability Study
| Autor: | Luis Ceballos-Laita, Xavier Marimon, Albert Masip-Alvarez, Sara Cabanillas-Barea, Sandra Jiménez-del-Barrio, Andoni Carrasco-Uribarren |
|---|---|
| Přispěvatelé: | Universitat Politècnica de Catalunya. Doctorat en Automàtica, Robòtica i Visió, Universitat Politècnica de Catalunya. SIC - Sistemes Intel·ligents de Control |
| Jazyk: | angličtina |
| Rok vydání: | 2023 |
| Předmět: |
Kinemáticos
Esportistes Kinematics Estudi de validesa Leadership and Management Cames -- Ferides i lesions Health Informatics Cinemàtica Health Information Management Estudio de validez Cinemàtics athletes kinematics computer-vision validity study Visión por computador Cinemáticos Leg -- Wounds and injuries Health Policy Visió per ordinador Atletas Enginyeria mecànica::Mecànica::Cinemàtica [Àrees temàtiques de la UPC] Handball Handbol Athletes Atletes Computer vision Validity study Computer-vision |
| Zdroj: | Healthcare; Volume 11; Issue 9; Pages: 1258 |
| ISSN: | 2227-9032 |
| DOI: | 10.3390/healthcare11091258 |
| Popis: | Background: In handball, the kinematics of the frontal plane seem to be one of the most important factors for the development of lower limb injuries. The knee valgus angle is a fundamental axis for injury prevention and is usually measured with 2D systems such as Kinovea software (Version 0.9.4.). Technological advances such as computer vision have the potential to revolutionize sports medicine. However, the validity and reliability of computer vision must be evaluated before using it in clinical practice. The aim of this study was to analyze the test-retest and inter-rater reliability and the concurrent validity of a beta version app based on computer vision for the measurement of knee valgus angle in elite handball athletes. Methods: The knee valgus angle of 42 elite handball athletes was measured. A frontal photo during a single-leg squat was taken, and two examiners measured the angle by the beta application based on computer vision at baseline and at one-week follow-up to calculate the test-retest and inter-rater reliability. A third examiner assessed the knee valgus angle using 2D Kinovea software to calculate the concurrent validity. Results: The knee valgus angle in the elite handball athletes was 158.54 ± 5.22°. The test-retest reliability for both examiners was excellent, showing an Intraclass Correlation Coefficient (ICC) of 0.859–0.933. The inter-rater reliability showed a moderate ICC: 0.658 (0.354–0.819). The standard error of the measurement with the app was stated between 1.69° and 3.50°, and the minimum detectable change was stated between 4.68° and 9.70°. The concurrent validity was strong r = 0.931; p < 0.001. Conclusions: The computer-based smartphone app showed an excellent test-retest and inter-rater reliability and a strong concurrent validity compared to Kinovea software for the measurement of the knee valgus angle. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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