Improvement and quantitative performance estimation of the back support muscle suit

Area of Science:

• Robotics and Wearable Technology
• Biomechanics and Ergonomics
• Occupational Health and Safety

Background:

• Manual labor poses significant risks, particularly back pain, impacting worker health and productivity.
• Existing assistive devices often lack the compactness, reliability, or wearability required for practical use.
• McKibben artificial muscles offer a promising solution for developing lightweight and effective wearable support systems.

Purpose of the Study:

• To improve the design and quantify the effectiveness of a wearable back support muscle suit for manual workers.
• To assess the feasibility and performance of the enhanced muscle suit in reducing physical strain during heavy lifting tasks.
• To provide quantitative data on the muscle suit's efficiency through electromyography measurements.

Main Methods:

• Development and refinement of a wearable muscle suit incorporating McKibben artificial muscles.
• Detailed explanation of the upper body frame structure, attachment methods, and added axes for improved support.
• Experimental evaluation using integral electromyography (IEMG) to measure muscle activity during vertical lifting tasks with and without the muscle suit.

Main Results:

• The enhanced back support muscle suit demonstrated significant improvements in structure and attachment for better wearability.
• Experimental results showed a reduction in integral electromyography (IEMG) values by approximately 40% when using the muscle suit.
• The study provides quantitative evidence of the muscle suit's effectiveness in reducing physical exertion during heavy lifting.

Conclusions:

• The developed wearable muscle suit offers a viable solution for supporting manual workers and mitigating the risk of back pain.
• The quantitative performance data validates the efficiency of the muscle suit in reducing muscle activity during strenuous tasks.
• Further development and implementation of such assistive wearable technology can significantly enhance occupational safety and worker well-being.