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Deficient knee joint biomechanics in bilateral jumping after anterior cruciate ligament reconstruction

Krafft, Frieder Cornelius; Stetter, Bernd Josef; Stein, Thorsten; Ellermann, Andree; Flechtenmacher, Johannes; Eberle, Christian; Sell, Stefan; Potthast, Wolfgang

Abstract (englisch):
Background The purpose of this study was to analyze sagittal-plane knee biomechanics in individuals with ACL reconstructions in bilateral countermovement jumps. This aimed to determine potential knee compensation strategies during a high-demanding symmetrical movement task from pre to six months post-ACL reconstruction. Methods 20 ACL-reconstructed individuals were tested pre-operatively, and then seven weeks, three months, and six months after reconstruction. Additionally, a matched control group was analyzed. Data were sampled with 3D motion capture and two force plates. The following kinematic data were analyzed: peak knee flexion during countermovement, knee angle at toe-off, and knee flexion excursion during landing. The following kinetic data were analyzed: peak knee extension moments during countermovement and landing. Findings ACL-reconstructed individuals showed significant increases in knee flexion during countermovement and knee flexion excursion during landing from six weeks to six months after reconstruction but they remained significantly below the level of the controls. The reconstructed knee joint showed increased flexion at toe-off compared to the non-injured leg at all test sessions. ... mehr



Originalveröffentlichung
DOI: 10.1016/j.clinbiomech.2020.105048
Zugehörige Institution(en) am KIT Institut für Sport und Sportwissenschaft (IfSS)
Publikationstyp Zeitschriftenaufsatz
Publikationsmonat/-jahr 05.2020
Sprache Englisch
Identifikator ISSN: 0268-0033
KITopen-ID: 1000119665
Erschienen in Clinical biomechanics
Seiten Article no: 105048
Vorab online veröffentlicht am 16.05.2020
Schlagwörter knee joint functionality; knee joint rehabilitation; functional compensation strategies; injury biomechanics; functional testing.
Nachgewiesen in Scopus
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