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ID 30983
JaLCDOI
FullText URL
Author
Gutnik, Boris
Leaver, Jonathan
Standen, Clive
Longley, Christopher
Abstract

Although the identification and characterisation of a participant's lateral profile during quiet standing have not received much research attention, they have the potential to greatly extend our understanding of upright stance stability control. This study further examines limb load asymmetries during quiet bipedal stance. During voluntary frontal-plane weight shifting for 2 min, 300 centre-of-pressure displacements on 14 blindfolded right-handed young adults were recorded. Four biomechanical indices were used to assess postural behaviour. These were the bias of time and the magnitude of the partial ground reaction forces from both legs, and the bias in the number and magnitude of microshifts influencing stability. Our study identifies a significant level of asymmetry in the quiet bipedal stance of right-handed people. This asymmetry is associated with the right-sided bias of the ground reaction force and the angle of inclination to the upright (vertical) centroidal line. We found that the initial lateralisation of the partial ground reaction forces from both feet, as well as the period of ground reaction force bias, are important elements in any clinical tests involving quiet bipedal stance.

Keywords
laterality
asymmetry
handedness
stability
force
Amo Type
Original Article
Published Date
2008-06
Publication Title
Acta Medica Okayama
Volume
volume62
Issue
issue3
Publisher
Okayama University Medical School
Start Page
175
End Page
184
ISSN
0386-300X
NCID
AA00508441
Content Type
Journal Article
language
英語
File Version
publisher
Refereed
True
Submission Path
amo/vol62/iss3/5
PubMed ID
Web of Sience KeyUT