Using ground reaction force to predict knee kinetic asymmetry following anterior cruciate ligament reconstruction.
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 articleSubject
ACL injurybiomechanics
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/10161/8909Published Version (Please cite this version)
10.1111/sms.12118Publication 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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Show full item recordScholars@Duke
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.
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