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Using ground reaction force to predict knee kinetic asymmetry following anterior cruciate ligament reconstruction.

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Date
2014-12
Authors
Dai, B
Butler, RJ
Garrett, WE
Queen, RM
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Abstract
Asymmetries in sagittal plane knee kinetics have been identified as a risk factor for anterior cruciate ligament (ACL) re-injury. Clinical tools are needed to identify the asymmetries. This study examined the relationships between knee kinetic asymmetries and ground reaction force (GRF) asymmetries during athletic tasks in adolescent patients following ACL reconstruction (ACL-R). Kinematic and GRF data were collected during a stop-jump task and a side-cutting task for 23 patients. Asymmetry indices between the surgical and non-surgical limbs were calculated for GRF and knee kinetic variables. For the stop-jump task, knee kinetics asymmetry indices were correlated with all GRF asymmetry indices (P < 0.05), except for loading rate. Vertical GRF impulse asymmetry index predicted peak knee moment, average knee moment, and knee work (R(2)  ≥ 0.78, P < 0.01) asymmetry indices. For the side-cutting tasks, knee kinetic asymmetry indices were correlated with the peak propulsion vertical GRF and vertical GRF impulse asymmetry indices (P < 0.05). Vertical GRF impulse asymmetry index predicted peak knee moment, average knee moment, and knee work (R(2)  ≥ 0.55, P < 0.01) asymmetry indices. The vertical GRF asymmetries may be a viable surrogate for knee kinetic asymmetries and therefore may assist in optimizing rehabilitation outcomes and minimizing re-injury rates.
Type
Journal article
Subject
ACL injury
biomechanics
cutting
jump
landing
Adolescent
Anterior Cruciate Ligament Injuries
Anterior Cruciate Ligament Reconstruction
Biomechanical Phenomena
Female
Humans
Kinetics
Knee Joint
Male
Movement
Predictive Value of Tests
Recurrence
Weight-Bearing
Permalink
https://hdl.handle.net/10161/8909
Published Version (Please cite this version)
10.1111/sms.12118
Publication Info
Dai, B; Butler, RJ; Garrett, WE; & Queen, RM (2014). Using ground reaction force to predict knee kinetic asymmetry following anterior cruciate ligament reconstruction. Scand J Med Sci Sports, 24(6). pp. 974-981. 10.1111/sms.12118. Retrieved from https://hdl.handle.net/10161/8909.
This is constructed from limited available data and may be imprecise. To cite this article, please review & use the official citation provided by the journal.
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Scholars@Duke

Butler

Robert John Butler

Adjunct Associate Professor in the Department of Orthopaedic Surgery
Construction of standards for a functional testing continuum for ACL patients to optimize durability and performance.Development of field expedient tests to predict musculoskeletal injury. Predictors of the early presentation of knee osteoarthritis following a joint injury. 

Robin Marie Queen

Assistant Professor of Orthopaedic Surgery
This author no longer has a Scholars@Duke profile, so the information shown here reflects their Duke status at the time this item was deposited.
Alphabetical list of authors with Scholars@Duke profiles.
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