Electromyographic muscle analysis of Counter Balance Arm Sling for exercise (CBAS-X) for rehabilitation Malaysian population

Mohd Asry, Mohamad Azhary (2024) Electromyographic muscle analysis of Counter Balance Arm Sling for exercise (CBAS-X) for rehabilitation Malaysian population. Project Report. Melaka, Malaysia, Universiti Teknikal Malaysia Melaka. (Submitted)

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Abstract

There are types of treatments used to regain strength of the muscle for hemiparesis patients including using assistive device such as Counter Balance Arm Sling for Exercise (CBAS-X). However, the effectiveness on the device's performance to serve its purpose has not yet been confirmed. Therefore, this research aims to investigates the therapeutic effectiveness of the CBAS-X in individuals with hemiparesis by analysing the comparison of the patient's nerve and muscle system with and without the device. Surface Electromyography (sEMG) is being use as the main tool to analyse these muscle activities. The research involves a comprehensive experimental setup using the questionnaire, manual muscle testing, the Delsys Trigno Wireless sEMG System and sEMG analysis to investigate the muscle activity and time to fatigue of the patient. Obtained result found that hemiparesis patients exhibit lower muscle strength grades compared to normal individuals revealing that hemiparesis patient scored grade 4 of 5 and normal individuals grade 5 of 5. From the analysis using the sEMG, hemiparesis shows a higher muscle contraction for all the muscle involved compared to normal individual which indicated muscle weakness of hemiparesis may lead to increased muscle effort during tasks thus contributing to a higher RMS value. A rise of 0.95% in deltoid, 12.86% in triceps and 13.90% in biceps muscle for the RMS value indicate increase in muscle activation for hemiparesis patient when using the device. In conclusion, this assistive device provides strong potential that it can be beneficial for muscle strengthening and rehabilitation outcomes for hemiparesis patients and expected to ease the patient in their daily chores.

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