Effect of attempted lifting speed on forces and torque exerted on the lumbar spine.

  • Samuel J Hall
  • Published 1985 in Medicine and science in sports and exercise


Factors affecting compressive and shear forces and torque at the L5/S1 vertebral joint were examined for nine different load/lifting-speed combinations during performances of a dynamic lifting task by 10 subjects. Loads were 40, 60, and 80% of each subject's maximum lifting capability. Target lifting times were 1.5, 3.5, and 7 s. A rigid link model of the… (More)