Soft-tissue injuries related to use of the computer keyboard. A clinical study of 53 severely injured persons.

@article{Pascarelli1993SofttissueIR,
  title={Soft-tissue injuries related to use of the computer keyboard. A clinical study of 53 severely injured persons.},
  author={Emil F. Pascarelli and Jehuda Kella},
  journal={Journal of occupational medicine. : official publication of the Industrial Medical Association},
  year={1993},
  volume={35 5},
  pages={522-32}
}
We studied 53 disabled keyboard operators who complained of pain in the forearms, elbows, wrists, shoulders, and hands. Passive wrist flexion and dorsiflexion impairment to less than 70 degrees due to myofascial shortening associated with an increase in forearm muscle pain on palpation was a useful clinical indicator of injury. Isometric muscle testing was useful in detecting injury to specific muscles. Ligamentous hypermobility of finger joints (72%) and harmful inefficient keyboard styles… CONTINUE READING

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