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Effects of using an active hand exoskeleton for drilling tasks: A pilot study
Abdullahi Ibrahim1, Ifeanyi Okpala2, Chukwuma Nnaji1
1Department of Construction Science, Texas A&M University, 101 Coke Building, College Station, TX 77840, USA.
Journal of Safety Research
|September 9, 2024
Summary
This study found that the Ironhand exoskeleton significantly reduced muscle activation in the forearm, particularly the Extensor Carpi Radialis, potentially lowering the risk of wrist disorders for workers.
Area of Science:
- Ergonomics and Human Factors
- Occupational Health and Safety
- Rehabilitation Engineering
Background:
- Limited research exists on exoskeletons mitigating lower arm disorders.
- This study investigates the Ironhand active hand exoskeleton (H-EXO) for reducing grip force exertion.
Purpose of the Study:
- To assess the impact of an active hand exoskeleton (H-EXO) on worker exertion levels.
- To evaluate the H-EXO's effect on muscle activity, perceived exertion, and effectiveness.
Main Methods:
- Ten male participants performed simulated drilling; three completed concrete demolition.
- Electromyography (EMG) measured muscle activity in three muscles.
- Perceived exertion and effectiveness were also assessed.
Main Results:
- Peak muscle activation decreased with H-EXO use, with a 27% reduction in Extensor Carpi Radialis (ECR).
- Perceived exertion levels were not significantly affected under controlled conditions.
- Users found the H-EXO valuable and were willing to use it for future tasks.
Conclusions:
- Glove-based exoskeletons like the H-EXO show potential for reducing wrist disorders.
- This technology may improve worker safety and productivity.
- Future research should explore diverse tasks, environments, and user groups.
