Posture and subjective evaluation at flat and slanted desks.

  title={Posture and subjective evaluation at flat and slanted desks.},
  author={Mary Claire Eastman and E. Kamon},
  journal={Human factors},
  volume={18 1},
Back posture was photographed and back, neck, and upper arm electromyograms(EMGs) were recorded for six subjects during reading and writing at flat and slanted (12°, 24°) desk surfaces. In addition, the subjects rated fatigue and back discomfort. Sitting with a backpack, while leaning 45° forward, was used as a preliminary procedure to standardize the back discomfort ratings. Results indicated more erect posture and less back movement (reduced EMG) at the slanted surfaces, while slanting the… CONTINUE READING