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Gepubliceerd in: Journal of Foot and Ankle Research 1/2014

Open Access 01-04-2014 | Meeting abstract

Analysis of vertical ground reaction force variables by Foot scan in hemiplegic patients

Auteurs: HyunDong Kim, Geun-Yeol Jo, NaMi Han, Mi-Ja Eom

Gepubliceerd in: Journal of Foot and Ankle Research | bijlage 1/2014

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Purpose

Our purpose was to analyze the differences in the vertical ground reaction force (GFR) records of hemiplegic patients to a normal healthy control group and between affected and unaffected limbs of hemiplegic patients using an F-Scan in-shoe transducer.

Material and methods

Twenty patients with hemiplegia due to vascular causes underwent gait analysis (by the F-Scan system). All patients had steady neurological status and were able to gait independently more than 8 m. The following vertical ground reaction force variables were measured: the first peak force during early stance(F1Y) and the percent stance at which it occurred(F1X); the second peak force evident through push-off(F2Y) and the percent stance that it occurred(F2X); loading rate, push-off rate, vertical force impulse, and stance time. Comparison of the GFR records was performed between hemiplegic patients and healthy control group and affected and unaffected limbs of hemiplegics. The group control consisted of 20 healthy volunteer subjects.

Results

F1Y of affected side was significantly less than that of unaffected side and normal control group(p<0.05). There was no difference in the F2Y between affected side and control group but that of unaffected side was significantly less than the other groups(p<0.05). F1X of both affected and unaffected side of patients was greater and F2X was less than the control group(p<0.05). Loading rate and push-off rate were significantly less on the both affected and unaffected sides of patients when compared to the control group(p<0.05). Greater impulse and stance time were recorded in both sides of patients than the control group(p<0.05).

Conclusions

Measuring vertical ground reaction force variables using a F-scan system is an objective and useful way to analyze hemiplegic gait after stroke. From this study, we identified abnormal GFR variables in affected limb and even on unaffected limb of hemiplegic patients. Abnormalities in GFR variables of the unaffected limb in hemiplegic patients may not be the principle target of rehabilitation programs aiming at restoring gait pattern. Instead it is suggested that more account should be taken to the unaffected limb
This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://​creativecommons.​org/​licenses/​by/​4.​0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The Creative Commons Public Domain Dedication waiver (http://​creativecommons.​org/​publicdomain/​zero/​1.​0/​) applies to the data made available in this article, unless otherwise stated.
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Metagegevens
Titel
Analysis of vertical ground reaction force variables by Foot scan in hemiplegic patients
Auteurs
HyunDong Kim
Geun-Yeol Jo
NaMi Han
Mi-Ja Eom
Publicatiedatum
01-04-2014
Uitgeverij
BioMed Central
Gepubliceerd in
Journal of Foot and Ankle Research / Uitgave bijlage 1/2014
Elektronisch ISSN: 1757-1146
DOI
https://doi.org/10.1186/1757-1146-7-S1-A98

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