Document Detail


Forefoot angle at initial contact determines the amplitude of forefoot and rearfoot eversion during running.
MedLine Citation:
PMID:  25001326     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
BACKGROUND: Clinically, foot structures are assessed intrinsically - relation of forefoot to rearfoot and rearfoot to leg. We have argued that, from a biomechanical perspective, the interaction of the foot with the ground may influence forces and torques that are propagated through the lower extremity. We proposed that a more appropriate measure is an extrinsic one that may predict the angle the foot makes with ground at contact. The purposes of this study were to determine if the proposed measure predicts contact angles of the forefoot and rearfoot and assess if the magnitude of those angles influences amplitude and duration of foot eversion during running.
METHODS: With the individual in prone, extrinsic clinical forefoot and rearfoot angles were measured relative to the caudal edge of the examination table. Participants ran over ground while frontal plane forefoot and rearfoot contact angles, forefoot and rearfoot eversion amplitude and duration were measured. Participants were grouped twice, once based on forefoot contact inversion angle (moderate<median and large>median) and once based on rearfoot contact inversion angle (moderate<median and large>median).
FINDINGS: The forefoot and rearfoot extrinsic clinical angles predicted, respectively, the forefoot and rearfoot angles at ground contact. Large forefoot contact angles were associated with greater amplitudes (but not durations) of forefoot and rearfoot eversion during stance. Rearfoot contact angles, however, were associated with neither amplitudes nor durations of forefoot and rearfoot eversion.
INTERPRETATION: Possible mechanisms for the increased risk of running injuries associated with large forefoot angles are discussed.
Authors:
Gail M Monaghan; Wen-Hao Hsu; Cara L Lewis; Elliot Saltzman; Joseph Hamill; Kenneth G Holt
Related Documents :
20057656 - Measurements of infrared fluorescence of certain optical materials as stimulated by vis...
10558856 - The emitting species dissociated from the enzyme can emit the light in photinus pyralis...
16777056 - Dark recovery of the chl a fluorescence transient (ojip) after light adaptation: the qt...
21124616 - Influence of finite spatial resolution on single- and double-pass femtosecond pulse sha...
8271816 - An in vivo technique for 3-dimensional field mapping in the rodent spinal cord.
16119546 - Seasonality in diurnal locomotory patterns of adult blacklegged ticks (acari: ixodidae).
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2014-6-26
Journal Detail:
Title:  Clinical biomechanics (Bristol, Avon)     Volume:  -     ISSN:  1879-1271     ISO Abbreviation:  Clin Biomech (Bristol, Avon)     Publication Date:  2014 Jun 
Date Detail:
Created Date:  2014-7-8     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8611877     Medline TA:  Clin Biomech (Bristol, Avon)     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2014 Elsevier Ltd. All rights reserved.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Protic acid resin enhanced 1-butyl-3-methylimidazolium chloride pretreatment of Arundo donax Linn.
Next Document:  Intraoperative experiments show relevance of inter-antagonistic mechanical interaction for spastic m...