ESTIMATION OF TIBIALIS ANTERIOR FES ENVELOP FOR UNILATERAL DROP FOOT GAIT CORRECTION USING MACHINE LEARNING TECHNIQUES

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Kordjazi Neda; Kobravi Hamidreza; ASGHAR HOSSEINI HOSSEIN; FIROUZABADI ALI

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Seminar Paper

Paper Information

Seminar: IRANIAN CONFERENCE ON BIOMEDICAL ENGINEERING
Year:2012 | Issue:19

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Title

ESTIMATION OF TIBIALIS ANTERIOR FES ENVELOP FOR UNILATERAL DROP FOOT GAIT CORRECTION USING MACHINE LEARNING TECHNIQUES

Author(s)

Kordjazi Neda | Kobravi Hamidreza | ASGHAR HOSSEINI HOSSEIN | FIROUZABADI ALI

Keywords

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Abstract

A CONTROL STRATEGY BASED ON MACHINE LEARNING TECHNIQUES IS PRESENTED, FOR GAIT CORRECTION IN UNILATERAL DROP FOOT, USING FUNCTIONAL ELECTRICAL STIMULATION (FES). IN THE PRESENTED STRATEGY, THE ELECTRICAL STIMULATION INTENSITY FOR THE DISABLED TIBIALIS ANTERIOR (TA) MUSCLE IS CONTROLLED, CONSIDERING THE EXISTING COORDINATION PATTERNS BETWEEN ACTIVITIES OF THE IPSILATERAL ANKLE TA MUSCLE, AND THE CONTRALATERAL ANKLE PLANTARFLEXOR (GASTROCNEMIUS(GC)) MUSCLES DURING NORMAL GAIT. THE COORDINATION PATTERNS DESCRIBE THE QUALITY OF SIMULTANEOUS TA AND GC MUSCLES ACTIVATION, IN THE OPPOSITE LEGS. THEREFORE IN THIS PAPER, A NARX NEURAL NETWORK HAS BEEN TRAINED USING THE HYBRID LMA-PSO TRAINING METHOD, TO FORECAST TH &NBSP;DISABLED TA MUSCLE ACTIVITY BASED ON THE INPUT FROM THE HEALTHYCALF MUSCLE OF THE OPPOSITE LEG. THE PREDICTED TA ACTIVATION IS THEN USED TO CONTROL THE TA MUSCLE FES INTENSITY IN REAL TIME. SEVEN HEALTHY VOLUNTEERS PARTICIPATED IN THE EXPERIMENTS. SURFACE ELECTROMYOGRAM WAS RECORDED FROM TA AND CALF MUSCLE SIMULTANEOUSLY ON THE OPPOSITE LEGS WHILE WALKING IN DIFFERENT GAIT FREQUENCIES. RESULTS OBTAINED FROM THE CONTROLLER ARE QUITE PROMISING AND SHOW IMPRESSIVE GENERALIZATION ABILITY BETWEEN&NBSP;SUBJECTS.

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APA: Copy

Kordjazi, Neda, Kobravi, Hamidreza, ASGHAR HOSSEINI, HOSSEIN, & FIROUZABADI, ALI. (2012). ESTIMATION OF TIBIALIS ANTERIOR FES ENVELOP FOR UNILATERAL DROP FOOT GAIT CORRECTION USING MACHINE LEARNING TECHNIQUES. IRANIAN CONFERENCE ON BIOMEDICAL ENGINEERING. SID. https://sid.ir/paper/926059/en

Vancouver: Copy

Kordjazi Neda, Kobravi Hamidreza, ASGHAR HOSSEINI HOSSEIN, FIROUZABADI ALI. ESTIMATION OF TIBIALIS ANTERIOR FES ENVELOP FOR UNILATERAL DROP FOOT GAIT CORRECTION USING MACHINE LEARNING TECHNIQUES. 2012. Available from: https://sid.ir/paper/926059/en

IEEE: Copy

Neda Kordjazi, Hamidreza Kobravi, HOSSEIN ASGHAR HOSSEINI, and ALI FIROUZABADI, “ESTIMATION OF TIBIALIS ANTERIOR FES ENVELOP FOR UNILATERAL DROP FOOT GAIT CORRECTION USING MACHINE LEARNING TECHNIQUES,” presented at the IRANIAN CONFERENCE ON BIOMEDICAL ENGINEERING. 2012, [Online]. Available: https://sid.ir/paper/926059/en

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