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Ergonomic Evaluation Of Shoulder Muscle Activation During Light Weight Hand Tool Exertion Task, Gul Ahmed
Ergonomic Evaluation Of Shoulder Muscle Activation During Light Weight Hand Tool Exertion Task, Gul Ahmed
Theses
A study was conducted to evaluate the effect of shoulder muscle activation during hand exertion tasks using a light weight hand tool by working individuals. Electromyography (EMG) of trapezius, supraspinatus, triceps, and pectoralis major was conducted for 45°, 0° and -45° arm angles, for three different reaches i.e. normal, maximum and extreme and three different push forces low, medium and high. Ten volunteers participated in the experimental study. The effects of push force and reach distance were found to be statistically significant for all four muscles. However the effect of change of angle was not found to be statistically significant, …