Lower-limb adaptation during squatting after isolated posterior cruciate ligament injuries

Clinical Biomechanics
Mei-Fang LiuFong-Chin Su

Abstract

While many studies point out that posterior cruciate ligament plays an important role in squatting, not many, if any, have looked into knee kinematics or kinetics for isolated posterior cruciate ligament injuries. This study explores lower-limb adaptation during squatting for asymptomatic patients with isolated chronic posterior cruciate ligament injuries. Thirteen research subjects or test participants with isolated chronic posterior cruciate ligament injuries were recruited to analyze the kinematics and kinetics on both sides of their hip, knees and ankle joints during squatting. We adopted ExpertVision™ motion analysis system and two Kistler force plates to record the three-dimensional trajectories of the reflective markers used and the ground reaction forces respectively. The peak vertical ground reaction force exerted on the participants, their peak support moment and the knee-joint peak extension moment exhibited at their non-involved side are significantly greater than that at their involved side. We also find that the involved side's knee joint (extension moment) exhibits a reduced percentage on the peak support moment contributed by the individual joints, while the joints of the hip and ankle signify increased percenta...Continue Reading

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Citations

May 17, 2013·Journal of Athletic Training·Matthew K SeeleyJ Ty Hopkins
Jul 21, 2014·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Naoya OritaMitsuo Ochi
Sep 6, 2017·Journal of Sport Rehabilitation·Suzi Edwards, Mark Liberatore
Sep 17, 2019·Journal of Human Kinetics·Andrew W Smith, Del P Wong
Apr 26, 2017·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Kazunari IshidaRyosuke Kuroda
Jun 20, 2020·Orthopaedic Journal of Sports Medicine·Yuanyuan YuYingfang Ao

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