Statistical modelling of knee valgus during a continuous jump test

Y. Nagano, M. Sakagami, H. Ida, M. Akai, T. Fukubayashi

    Research output: Contribution to journalArticle

    14 Citations (Scopus)

    Abstract

    Landing with the knee in a valgus position is recognized as a risk factor for anterior cruciate ligament (ACL) injury. Using linear and non-linear regression analyses, the purpose of this study was to examine the correlation between two-dimensional (2D) knee valgus and three-dimensional (3D) knee kinematics measured during a jump landing task. Twenty-eight female collegiate athletes participated. All participants were required to perform a continuous jump test. The average maximum angles of abduction and internal tibial rotation during landing were measured using the Point Cluster Technique. Average peak knee valgus angle was measured using a 2D approach. Linear and non-linear regression analyses between 2D valgus and 3D knee abduction, and between 2D valgus and 3D internal tibial rotation, were performed. The R2 value between 2D valgus and 3D knee abduction was significantly different from zero and had a moderate correlation for all models, whereas the R2 value between 2D valgus and 3D internal tibial rotation was not significantly different from zero. The 2D approach could be used to screen a specific group of individuals for risk of ACL injury; however, using frontal plane 2D analysis of valgus motion to evaluate internal tibial rotation is not advised.

    Original languageEnglish
    Pages (from-to)342-350
    Number of pages9
    JournalSports Biomechanics
    Volume7
    Issue number3
    DOIs
    Publication statusPublished - 2008

    Keywords

    • Injury
    • Kinematics
    • Knee
    • Landing
    • Motion analysis

    ASJC Scopus subject areas

    • Orthopedics and Sports Medicine
    • Physical Therapy, Sports Therapy and Rehabilitation

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