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Plantar loading during jumping while wearing a rigid carbon graphite footplate

dc.contributor.author Queen, Robin M
dc.contributor.author Verma, Ravi
dc.contributor.author Abbey, Alicia N
dc.contributor.author Nunley, James A
dc.contributor.author Butler, Robert J
dc.date.accessioned 2014-06-20T02:20:47Z
dc.date.issued 2014-02-01
dc.identifier.issn 0966-6362
dc.identifier.uri https://hdl.handle.net/10161/8905
dc.description.abstract Fifth metatarsal stress fractures are common in sports and often result in delayed and non-union. The purpose of this study was to examine the effect of a rigid carbon graphite footplate (CGF) on plantar loading during take-off and landing from a jump. Nineteen recreational male athletes with no history of lower extremity injury in the past 6 months and no foot or ankle surgery in the past 3 years participated in this study. Subjects completed 7 jumping tasks while wearing a standard running shoe and then the shoe plus the CGF while plantar loading data was recorded. A series of paired t-tests were used to examine differences between the two footwear conditions independently for both takeoff and landing (α=0.05). The contact area in the medial midfoot (p<.001) and forefoot (p=.010) statistically decreased when wearing the CGFP. The force-time integral was significantly greater when wearing the CGFP in the middle (p<.001) and lateral forefoot (p=.019). Maximum force was significantly greater beneath the middle (p<.001) and lateral forefoot (p<.001) when wearing the CGFP, while it was decreased beneath the medial midfoot (p<.001). During landing, the contact area beneath the medial (p=.017) and lateral midfoot (p=.004) were significantly decreased when wearing the CGFP. The force-time integral was significantly decrease beneath the medial midfoot (p<.001) when wearing the CGFP. The maximum force was significantly greater beneath the medial (p=.047) and middle forefoot (p=.001) when the subject was wearing the CGFP. The maximum force beneath the medial midfoot (p<.001) was significantly reduced when wearing the carbon graphite footplate. The results of the study indicate that the CGF is ineffective at reducing plantar loading during jumping and landing. © 2013 Elsevier B.V.
dc.publisher Elsevier BV
dc.relation.ispartof Gait and Posture
dc.relation.isversionof 10.1016/j.gaitpost.2013.10.002
dc.title Plantar loading during jumping while wearing a rigid carbon graphite footplate
dc.type Journal article
duke.contributor.id Queen, Robin M|0333217
duke.contributor.id Nunley, James A|0101376
duke.contributor.id Butler, Robert J|0535237
pubs.begin-page 707
pubs.end-page 711
pubs.issue 2
pubs.organisational-group Clinical Science Departments
pubs.organisational-group Duke
pubs.organisational-group Faculty
pubs.organisational-group Orthopaedics
pubs.organisational-group Orthopaedics, Physical Therapy
pubs.organisational-group School of Medicine
pubs.publication-status Published
pubs.volume 39
dc.identifier.eissn 1879-2219


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