Coordination of head and trunk accelerations during walking

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Title Coordination of head and trunk accelerations during walking
Author Kavanagh, Justin; Morrison, Steven; Barrett, Rod
Journal Name European Journal of Applied Physiology
Year Published 2005
Place of publication USA
Publisher SpringeR
Abstract The purpose of this study was to investigate the relationship between oscillatory dynamics of the head and trunk in each plane of motion during walking. Head and trunk accelerations of ten healthy subjects (age: 23±4 years) were measured in the vertical (VT), anterior–posterior (AP) and mediolateral (ML) directions using a pair of tri-axial accelerometers. All subjects performed five walking trials along a level 20 m walkway at their preferred gait velocity (1.30±0.15 m s–1). Acceleration data were analysed using power spectral, harmonic and regularity measures. Results indicated that: (1) oscillations of the head were smoother, with a greater proportion of power at lower frequencies than oscillations of the trunk, (2) differences in power spectral properties between the head and trunk were most pronounced in the ML direction, (3) coupling between VT–AP, VT–ML, and AP–ML accelerations were greater for the head than trunk, and (4) for both segments, the weakest coupling was observed for AP–ML acceleration relations. Overall, the results of this study suggest that accelerations of the head are significantly attenuated, and more tightly controlled, compared to accelerations of the lower trunk. This attenuation process was particularly evident for the ML direction, whereby head accelerations showed the greatest differences compared to ML accelerations at the trunk.
Peer Reviewed Yes
Published Yes
Alternative URI
Volume 94
Page from 468
Page to 475
ISSN 1439-6319
Date Accessioned 2005-12-13
Language en_AU
Research Centre Menzies Health Institute Qld; Centre for Musculoskeletal Research
Faculty Griffith Health Faculty
Subject PRE2009-Motor Control
Publication Type Journal Articles (Refereed Article)
Publication Type Code c1

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