Gender differences in the variability of lower extremity kinematics during treadmill locomotion

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Title Gender differences in the variability of lower extremity kinematics during treadmill locomotion
Author Barrett, Rod; Vonknoordegraaf, Maarten; Morrison, Steven
Journal Name Journal of Motor Behavior
Editor Richard G. Carson, Robert L. Sainburg & Dagmar Sternad
Year Published 2008
Place of publication United States
Publisher Heldref Publications
Abstract The authors examined whether there were gender differences in the variability of basic gait parameters (stride length, stride time) and 3-dimensional (3D) rotations of the hip, knee, and ankle joints during treadmill locomotion of 18 men and 15 women at 4 different gait speeds (walking at 5 km/hr, running at 8, 10, and 12 km/hr). The authors used 2-way analyses of variance to assess the data. No gender differences in the mean values or variability of basic gait parameters were detected. However, the women exhibited lower variability than did the men for 6 individual joint rotations: (a) transverse plane rotations of the ankle joint at 8, 10, and 12 km/hr, (b) transverse plane rotations of the hip and knee joints at 12 km/hr, and (c) sagittal plane rotations of the ankle joint at 12 km/hr. When collapsed across all 3D lower extremity rotations, the data showed that the women had lower variability than did the men at 12 km/hr. Reduced variability may result in more localized mechanical stress on anatomical structures and could therefore be a risk factor for injury in women at high gait speeds. The results also suggested that gender differences in variability may not be consistent across different levels of the motor system.
Peer Reviewed Yes
Published Yes
Publisher URI http://www.heldref.org
Alternative URI http://dx.doi.org/10.3200/JMBR.40.1.62-70
Copyright Statement Copyright 2008 Heldref Publications. The attached file is reproduced here in accordance with the copyright policy of the publisher.Please refer to the journal's website for access to the definitive, published version.
Volume 40
Issue Number 1
Page from 62
Page to 70
ISSN 0022-2895
Date Accessioned 2008-07-07
Language en_AU
Research Centre Griffith Health Institute; Centre for Musculoskeletal Research
Faculty Griffith Health Faculty
Subject PRE2009-Biomechanics
URI http://hdl.handle.net/10072/20448
Publication Type Journal Articles (Refereed Article)
Publication Type Code c1

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