Abstract
The application of function electrical stimulation (FES) has recently been extended to patients with cerebral palsy. To ensure a functional gain from the electrically elicited movement, a reproducible response with sufficient magnitude is desired. In this study, the effects of varying pulse parameters on the motor response were investigated. FES-induced ankle dorsiflexion of seven adults with spastic diplegia under constant current stimulation buth with varied pulsewidths and frequencies was measured. Stimulation pattern that produced a desired motor response was determined for each individual subject. Despite the diversity of the conditions caused by cerebral palsy, a common trend was observed from the identified patterns. The characterization results suggested that the FES-induced ankle dorsiflexion in adults with spastic diplegia could be controlled by employing a constant current with frequency at 20 or 30 Hz using pulsewidth modulation ranged from 100 to 400 μs. Copyright © 2000 IEEE.
| Original language | English |
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| Title of host publication | Proceedings of the 22nd Annual International Conference of the IEEE Engineering in Medicine and Biology Society |
| Editors | John D. ENDERLE |
| Place of Publication | Danvers, MA |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| Pages | 2267-2270 |
| Volume | 3 |
| ISBN (Print) | 0780364651 |
| DOIs | |
| Publication status | Published - 2000 |