Body weight support by virtual model control of an impedance controlled exoskeleton (LOPES) for gait training

Annu Int Conf IEEE Eng Med Biol Soc. 2008:2008:1969-72. doi: 10.1109/IEMBS.2008.4649574.

Abstract

The feasibility of an alternative method to support body weight in a powered exoskeleton is demonstrated. Instead of using an overhead suspension system, body weight is supported by augmenting the joint moments through virtual model control. The advantages of this novel method is that it allows for independent support of the left and right leg, and does not interfere with the excitation of cutanous afferents and balance of the body or trunk. Results show that after a short familiarization period the activity of muscles during initial stance reduces and kinematics become close to normal.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Biomechanical Phenomena
  • Biomedical Engineering
  • Body Weight
  • Electric Impedance
  • Gait / physiology
  • Gait Disorders, Neurologic / pathology
  • Gait Disorders, Neurologic / physiopathology
  • Gait Disorders, Neurologic / rehabilitation*
  • Humans
  • Man-Machine Systems
  • Robotics / instrumentation*
  • User-Computer Interface*