1 / 5

Sina Askari, MS; TeKang Chao; Ray D. de Leon, PhD; Deborah S. Won, PhD

The effect of timing electrical stimulation to robotic-assisted stepping on neuromuscular activity and associated kinematics. Sina Askari, MS; TeKang Chao; Ray D. de Leon, PhD; Deborah S. Won, PhD. Aim

kamea
Download Presentation

Sina Askari, MS; TeKang Chao; Ray D. de Leon, PhD; Deborah S. Won, PhD

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. The effect of timing electrical stimulation to robotic-assisted stepping on neuromuscular activity and associated kinematics Sina Askari, MS; TeKang Chao; Ray D. de Leon, PhD; Deborah S. Won, PhD

  2. Aim • Determine how timing neuromuscular functional electrical stimulation (FES) to limb movements during stepping might alter neuromuscular control differently than patterned stimulation alone. • Relevance • FES has been used to strengthen muscles weakened by neurological damage and artificially replace muscle activation missing because of spinal cord injury (SCI).

  3. Method • Developed prototype FES system for rodent SCI model that timed FES to robotic treadmill training (RTT) for 2 rat groups: • FES+RTT • FES+RTT and tibialis anterior (TA) stimulation timed according to robot-controlled hind-limb position. • Randomly timed stimulation (RS) • Similarly patterned stimulation, randomly timed with respect to hind-limb movements, while in cages. • Tested treadmill stepping ability and compared hind-limb movement and TA electromyography (EMG) activity after 4 wk.

  4. Results • FES+RTT group stepped faster and exhibited TA EMG profiles that better matched applied stimulation profile during training than RS group.

  5. Conclusion • Locomotor training consisting of FES timed to hind-limb movement improved activation of hind-limb muscle more so than RS alone.

More Related