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

dc.contributor.author

Dai, B

dc.contributor.author

Butler, RJ

dc.contributor.author

Garrett, WE

dc.contributor.author

Queen, RM

dc.coverage.spatial

Denmark

dc.date.accessioned

2014-06-20T02:42:38Z

dc.date.issued

2014-12

dc.description.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.

dc.identifier

http://www.ncbi.nlm.nih.gov/pubmed/24118495

dc.identifier.eissn

1600-0838

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https://hdl.handle.net/10161/8909

dc.language

eng

dc.publisher

Wiley

dc.relation.ispartof

Scand J Med Sci Sports

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10.1111/sms.12118

dc.subject

ACL injury

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biomechanics

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cutting

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jump

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landing

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Adolescent

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Anterior Cruciate Ligament Injuries

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Anterior Cruciate Ligament Reconstruction

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Biomechanical Phenomena

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Female

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Humans

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Kinetics

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Knee Joint

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Male

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Movement

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Predictive Value of Tests

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Recurrence

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Weight-Bearing

dc.title

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

dc.type

Journal article

pubs.author-url

http://www.ncbi.nlm.nih.gov/pubmed/24118495

pubs.begin-page

974

pubs.end-page

981

pubs.issue

6

pubs.organisational-group

Clinical Science Departments

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Duke

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Faculty

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Orthopaedics

pubs.organisational-group

Orthopaedics, Physical Therapy

pubs.organisational-group

School of Medicine

pubs.publication-status

Published

pubs.volume

24

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