Effect of compressive follower preload on the flexion-extension response of the human lumbar spine.

@article{Patwardhan2003EffectOC,
  title={Effect of compressive follower preload on the flexion-extension response of the human lumbar spine.},
  author={Avinash G Patwardhan and Robert Havey and Gerard Carandang and James Beart Simonds and Leonard I. Voronov and Alexander J. Ghanayem and Kevin P. Meade and Thomas M. Gavin and Odysseas Paxinos},
  journal={Journal of orthopaedic research : official publication of the Orthopaedic Research Society},
  year={2003},
  volume={21 3},
  pages={
          540-6
        }
}
Traditional experimental methods are unable to study the kinematics of whole lumbar spine specimens under physiologic compressive preloads because the spine without active musculature buckles under just 120 N of vertical load. However, the lumbar spine can support a compressive load of physiologic magnitude (up to 1200 N) without collapsing if the load is applied along a follower load path. This study tested the hypothesis that the load-displacement response of the lumbar spine in flexion… CONTINUE READING

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