Document Detail

The variability of force platform data in normal and cerebral palsy gait.
MedLine Citation:
PMID:  10619106     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: To determine the natural variability and symmetry of force platform parameters in normal and cerebral palsy gait. DESIGN: Force platform data has been analysed using coefficient of variation, analysis of variances and symmetry index. BACKGROUND: It is important to establish the natural variability of force platform data so that changes in gait due to natural variability and those due to intervention can be determined. METHODS: Force platform data and walking speed were recorded in 15 normal volunteers and 11 children with cerebral palsy on 3 consecutive days. Five recordings were made of each leg on each day. RESULTS: The force platform parameters in both groups showed greater asymmetry in the horizontal plane. In the cerebral palsy group significant asymmetry was found in all 3 directions. The variation of the vertical ground reaction force peaks (Fz1 and Fz3) and of the anterior-posterior negative peak (Fy3) for both groups was low. Fz3 was the most reproducible force parameter. The other force parameters showed high variability and are not considered reliable measures of gait. The temporal parameters and the walking speed were reproducible measures. CONCLUSIONS: Only selected ground reaction force parameters showed acceptable stability and reproducibility. Therefore caution has to be taken in the selection of these parameters, when assessing the effects of any intervention on cerebral palsy gait.
R White; I Agouris; R D Selbie; M Kirkpatrick
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Publication Detail:
Type:  Clinical Trial; Comparative Study; Controlled Clinical Trial; Journal Article    
Journal Detail:
Title:  Clinical biomechanics (Bristol, Avon)     Volume:  14     ISSN:  0268-0033     ISO Abbreviation:  Clin Biomech (Bristol, Avon)     Publication Date:  1999 Mar 
Date Detail:
Created Date:  2000-01-27     Completed Date:  2000-01-27     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8611877     Medline TA:  Clin Biomech (Bristol, Avon)     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  185-92     Citation Subset:  IM    
Department of Biomedical Physics and Bioengineering, University of Aberdeen/Aberdeen Royal Hospitals, Foresterhill, UK.
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MeSH Terms
Analysis of Variance
Cerebral Palsy / physiopathology,  rehabilitation*
Child, Preschool
Confidence Intervals
Gait / physiology*
Reference Values
Reproducibility of Results
Sensitivity and Specificity
Video Recording*

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

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