Knee Loading Deficits During Dynamic Tasks in Individuals Following Anterior Cruciate Ligament Reconstruction

The Journal of Orthopaedic and Sports Physical Therapy
Kristamarie Pratt, Susan M Sigward

Abstract

Study Design Controlled laboratory study, cross-sectional. Background Well-documented deficits in sagittal plane knee loading during dynamic tasks indicate that individuals limit the magnitude of knee loading following anterior cruciate ligament reconstruction (ACLR). It is unknown how these individuals modulate the speed of knee flexion during loading, which is particularly important as they progress to running during rehabilitation. Objective To investigate how individuals following ACLR perform dynamic knee loading tasks compared to healthy controls. Methods Two groups of recreationally active individuals participated: 15 healthy controls and 15 individuals post-ACLR (ACLR group). Participants performed 3 trials of overground running and a single-limb loading (SLL) task. Sagittal plane range of motion, peak knee extensor moment, peak knee flexion angular velocity, peak knee power absorption, and rate of knee extensor moment were calculated during deceleration. A mixed-factor multivariate analysis of variance was performed to compare differences in variables between groups (ACLR and control), limbs (within ACLR), and tasks (within control). Results Knee power absorption, knee flexion angular velocity, and rate of knee extenso...Continue Reading

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Citations

Jul 19, 2018·The Journal of Bone and Joint Surgery. American Volume·Jacob J CapinLynn Snyder-Mackler
Jul 24, 2018·The Journal of Orthopaedic and Sports Physical Therapy·Derek N PamukoffMichael N Vakula
May 19, 2019·Sports Medicine·Benoit Pairot-de-FontenayJean-Sébastien Roy
Jul 13, 2018·The Journal of Orthopaedic and Sports Physical Therapy·Kristamarie A Pratt, Susan M Sigward
Apr 18, 2021·Physical Therapy in Sport : Official Journal of the Association of Chartered Physiotherapists in Sports Medicine·Jack MalafronteTrevor Kovacs

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