Design and Implementation of Automated Ankle Foot Orthosis for Foot Drop Patients Using Gait Cycle EMG Analysis
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An automated AFO has been developed and implemented to test the feasibility and effectiveness on patients and shows that the effect of GBS on swing phase can be lessened as the value of correlation coefficient increases.Abstract:
Foot drop is known as gait abnormality in which the dropping of the forefoot happens due to the weakness of Tibialis Anterior Muscle for the damage of the common fibular nerve in the anterior portion of the lower leg. In this research, those patients are considered who have foot drop for Guillain–Barre syndrome (GBS). GBS is a peripheral nerve disorder for which bilateral foot drop happens to the patients. So, the aim of this research is to develop an automated Ankle Foot Orthosis (AFO) which will aid the GBS patients in their gait cycle while walking. For the development of this AFO, an EMG analysis has been conducted on both normal people (20 persons, Male 20-45 years) and GBS patients (10 patients, Male 20-45 years) and compared to find out the deviation of the patient’s one from the normal people. The findings of the EMG study show that the stance phase of the gait cycle is not affected by the GBS as correlation coefficient values are in between 0.95 to 1 where the swing phase very much deviates from the normal pattern as the coefficient values are in between 0.6 to 0.7 as well as short swing phase and no heel strike during walking. Considering these, automated AFO has been developed and implemented to test the feasibility and effectiveness on patients. The experimental results show that the effect of GBS on swing phase can be lessened as the value of correlation coefficient increases to 0.85 to 0.9 with long swing phase and proper heel strike on terminal swing phase.read more
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[Guillain-Barré syndrome].
TL;DR: High-dose of intravenous immunoglobulin (0.4 g/kg daily for 5 days) and PE are equally effective in intermediate and severe forms and the choice between the two treatments depends on their respective contra-indications and local availability.
References
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Journal Article
[Guillain-Barré syndrome].
TL;DR: High-dose of intravenous immunoglobulin (0.4 g/kg daily for 5 days) and PE are equally effective in intermediate and severe forms and the choice between the two treatments depends on their respective contra-indications and local availability.
Journal ArticleDOI
Comparison of a dynamic and a hinged ankle–foot orthosis by gait analysis in patients with hemiplegic cerebral palsy
TL;DR: The benefits of controlling plantar Flexion by a longer lever arm fror the h-AFO to the proximal calf included a heel-toe gait pattern, reduced plantarflexion, increased step and stride length and reduced power absorption.
Journal ArticleDOI
Polypropylene Ankle Foot Orthoses to Overcome Drop-Foot Gait in Central Neurological Patients: A Mechanical and Functional Evaluation
Daan J. J. Bregman,Vincent de Groot,Peter van Diggele,Hubert Meulman,Han Houdijk,Jaap Harlaar +5 more
TL;DR: Functional benefit from the AFO was only found when the mechanical AFO characteristics met the need to support the patients’ mechanical deficiencies, and not in terms of a reduced energy cost of walking.
Journal ArticleDOI
Design of a stiffness-adjustable ankle-foot orthosis and its effect on ankle joint kinematics in patients with stroke
TL;DR: The aim of this study was to design an experimental AFO (EAFO) whose stiffness was adjustable using commercially available oil-damper joints, and to demonstrate its potential capability in investigating the effects of altering AFO stiffness on gait.
Journal ArticleDOI
The influence of passive-dynamic ankle-foot orthosis bending axis location on gait performance in individuals with lower-limb impairments.
TL;DR: In this study, altering bending axis location did not produce large and consistent changes in gait performance, suggesting individual preference and comfort may be more important factors guiding prescription.