A comparative study of two shovel designs.

@article{Degani1993ACS,
  title={A comparative study of two shovel designs.},
  author={Asaf Degani and Shihab S. Asfour and S M Waly and Jasmine Koshy},
  journal={Applied ergonomics},
  year={1993},
  volume={24 5},
  pages={306-12}
}
In the present study a modified shovel design with two perpendicular shafts is presented. This modified, two-shaft shovel was compared with a regular shovel. The modified shovel was evaluated and tested in a controlled laboratory environment using surface electromyography recorded from the lumbar paraspinal muscles. The new shovel design was also tested in a field study using ratings of perceived exertion. The results indicate that there was a significant reduction in EMG values of the lumbar… CONTINUE READING

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