A feedback sway control system of trunk inclination angles was designed to improve the postural stability of paraplegic standing by functional electrical stimulation (FES). The system was constructed of two proportional-and-derivative (PD) controllers and four co-activation stimulation maps. The performance in postural stability was clinically evaluated by applying a step disturbance while a paraplegic subject with spinal cord injury in thoracic 8th level is quietly standing between parallel bars using knee-ankle-foot-orthosis. The decrease of the backward sway magnitude by using the proposed system was statistically significant, when the 10 N backward disturbance was applied.
|Number of pages||2|
|Journal||japanese journal of medical electronics and biological engineering|
|Publication status||Published - 1996|
ASJC Scopus subject areas
- Biomedical Engineering