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Plantar Loading During Cutting While Wearing a Rigid Carbon Fiber Insert.

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Date
2014-02-12
Authors
Queen, Robin M
Abbey, Alicia N
Verma, Ravi
Butler, Robert J
Nunley, James A
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Abstract
Context : Stress fractures are one of the most common injuries in sports, accounting for approximately 10% of all overuse injuries. Treatment of fifth metatarsal stress fractures involves both surgical and nonsurgical interventions. Fifth metatarsal stress fractures are difficult to treat because of the risks of delayed union, nonunion, and recurrent injuries. Most of these injuries occur during agility tasks, such as those performed in soccer, basketball, and lacrosse. Objective : To examine the effect of a rigid carbon graphite footplate on plantar loading during 2 agility tasks. Design :  Crossover study. Setting : Laboratory. Patients or Other Participants : A total of 19 recreational male athletes with no history of lower extremity injury in the past 6 months and no previous metatarsal stress fractures were tested. Main Outcome Measure(s) :  Seven 45° side-cut and crossover-cut tasks were completed in a shoe with or without a full-length rigid carbon plate. Testing order between the shoe conditions and the 2 cutting tasks was randomized. Plantar-loading data were recorded using instrumented insoles. Peak pressure, maximum force, force-time integral, and contact area beneath the total foot, the medial and lateral midfoot, and the medial, middle, and lateral forefoot were analyzed. A series of paired t tests was used to examine differences between the footwear conditions (carbon graphite footplate, shod) for both cutting tasks independently (α = .05). Results : During the side-cut task, the footplate increased total foot and lateral midfoot peak pressures while decreasing contact area and lateral midfoot force-time integral. During the crossover-cut task, the footplate increased total foot and lateral midfoot peak pressure and lateral forefoot force-time integral while decreasing total and lateral forefoot contact area. Conclusions : Although a rigid carbon graphite footplate altered some aspects of the plantar- pressure profile during cutting in uninjured participants, it was ineffective in reducing plantar loading beneath the fifth metatarsal.
Type
Journal article
Permalink
https://hdl.handle.net/10161/8903
Published Version (Please cite this version)
10.4085/1062-6050-48.6.18
Publication Info
Queen, Robin M; Abbey, Alicia N; Verma, Ravi; Butler, Robert J; & Nunley, James A (2014). Plantar Loading During Cutting While Wearing a Rigid Carbon Fiber Insert. J Athl Train. 10.4085/1062-6050-48.6.18. Retrieved from https://hdl.handle.net/10161/8903.
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. 
Nunley

James Albert Nunley II

Goldner Jones Distinguished Professor of Orthopaedic Surgery
My current research interests are both clinical and basic science. Currently, in the Orthopaedic Research Laboratory, we are investigating the biomechanical properties of the deltoid ligament in the ankle. This is a clinically relevant problem and we will hopefully identify ways to improve the correction of the adult relaxed flat foot. We are also performing a preliminary investigation into the blood supply of the distal tibia to look for a vascularized bone transfer. We have

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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