Diurnal variations in the stresses on the lumbar spine.

@article{Adams1987DiurnalVI,
  title={Diurnal variations in the stresses on the lumbar spine.},
  author={Michael A. Adams and Peter Dolan and William C. Hutton},
  journal={Spine},
  year={1987},
  volume={12 2},
  pages={
          130-7
        }
}
Two complementary experiments were performed, the first on living people and the second on cadaveric spines. In the first experiment, electronic inclinometers were used to measure the range of lumbar flexion of 21 volunteers in the early morning and in the afternoon. The results showed that the range of movement increased by 5 degrees during the day. In the second experiment, cadaveric lumbar motion segments were creep loaded to simulate a day's activity and their bending properties were… CONTINUE READING

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