Effect of repeated passive anterior loading on human knee anterior laxity

Renata Vauhnik*, Maja Pohar Perme, Massimo G. Barcellona, Matthew C. Morrissey, France Sevšek, Darja Rugelj

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    2 Citations (Scopus)

    Abstract

    Background: Increased knee anterior laxity results when the anterior cruciate ligament is injured. This increased laxity can cause knee dysfunction. Until recently this laxity was believed to be only diminished through surgery. But recent findings indicate that knee anterior laxity may be decreased with repeated loading of the knee. Objective: The purpose of this study was to test the hypothesis that regular passive anterior loading of the uninjured human knee would enhance its stiffness. Study design: Randomized controlled trial. Methods: Knee anterior laxity was tested using an arthrometer in 22 young, uninjured females before, during and after a 3 month period during which passive anterior loading was applied by a trained physiotherapist over 5 sessions per week to a randomly assigned knee. Results: Knee anterior laxity was not affected by the passive anterior loading of the knee. Conclusions: Given that in this study repeated passive loading of the knee did not change knee anterior laxity, it would be easy to conclude that this training is ineffective and no further research is required. We caution against this given the relatively short duration and possibly insufficient intensity of the training and the population studied; individuals with normal joint laxity. We recommend that future research be performed that consists of individuals with lax joints who receive training for prolonged periods.

    Original languageEnglish
    Pages (from-to)709-714
    Number of pages6
    JournalManual Therapy
    Volume20
    Issue number5
    Early online date2 Mar 2015
    DOIs
    Publication statusPublished - 1 Oct 2015

    Keywords

    • Anterior cruciate ligament
    • Arthrometry
    • Force
    • Manual therapy

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