Reliability of a Custom Device Used to Measure Isometric Knee Flexor and Extensor Strength in Standing Position

Autor: Tommaso Minuti, Paolo Cigni, Michele Costagli, Alessandro Cucini, Erika Cione, Samuele Melotto, Stefano Rapetti, Leonardo Ricotti, Roberto Cannataro
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Life, Vol 13, Iss 2, p 458 (2023)
Druh dokumentu: article
ISSN: 2075-1729
DOI: 10.3390/life13020458
Popis: Background: Assessing lower limb strength in the field is problematic, as the “gold standard assessment” with isokinetic strength is cumbersome, and the device is costly and not transportable and keeps the angle of the hip at around 90°. Methods: We evaluated isometric muscle strength in a standing position with the help of an exoskeleton that holds the subject and makes the test easily repeatable. Results: The optimal device angles for hip and knee were, respectively, 20° and 80° for flexor tests and 30° and 40° for extensor tests. Test–retest reliability was very high for the right knee extensor (ICC 0.96–0.98), left knee extensor (ICC 0.96–0.97), right knee flexor (ICC 0.91–0.96), and left knee flexor (ICC 0.96–0.97). Furthermore, the typical error in percent (T.E.%) ranged from 2.50 to 5.50%, and the change in the mean in percent ranged from 0.84 to 7.72%, making it possible to determine even a slight variation in force. Conclusions: this new method could represent a valid alternative for assessing strength, due to the high reliability and the favorable joint position, particularly in football.
Databáze: Directory of Open Access Journals
Nepřihlášeným uživatelům se plný text nezobrazuje