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This article and any supplementary material should be cited as follows: Askari S, Chao T, de Leon RD, Won DS. The effect of timing electrical stimulation.

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Presentation on theme: "This article and any supplementary material should be cited as follows: Askari S, Chao T, de Leon RD, Won DS. The effect of timing electrical stimulation."— Presentation transcript:

1 This article and any supplementary material should be cited as follows: Askari S, Chao T, de Leon RD, Won DS. The effect of timing electrical stimulation to robotic-assisted stepping on neuromuscular activity and associated kinematics. J Rehabil Res Dev. 2013;50(6):875–92. http://dx.doi.org/10.1682/JRRD.2012.06.0111 Slideshow Project DOI:10.1682/JRRD.2012.06.0111JSP 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 This article and any supplementary material should be cited as follows: Askari S, Chao T, de Leon RD, Won DS. The effect of timing electrical stimulation to robotic-assisted stepping on neuromuscular activity and associated kinematics. J Rehabil Res Dev. 2013;50(6):875–92. http://dx.doi.org/10.1682/JRRD.2012.06.0111 Slideshow Project DOI:10.1682/JRRD.2012.06.0111JSP 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 This article and any supplementary material should be cited as follows: Askari S, Chao T, de Leon RD, Won DS. The effect of timing electrical stimulation to robotic-assisted stepping on neuromuscular activity and associated kinematics. J Rehabil Res Dev. 2013;50(6):875–92. http://dx.doi.org/10.1682/JRRD.2012.06.0111 Slideshow Project DOI:10.1682/JRRD.2012.06.0111JSP 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 This article and any supplementary material should be cited as follows: Askari S, Chao T, de Leon RD, Won DS. The effect of timing electrical stimulation to robotic-assisted stepping on neuromuscular activity and associated kinematics. J Rehabil Res Dev. 2013;50(6):875–92. http://dx.doi.org/10.1682/JRRD.2012.06.0111 Slideshow Project DOI:10.1682/JRRD.2012.06.0111JSP Results FES+RTT group stepped faster and exhibited TA EMG profiles that better matched applied stimulation profile during training than RS group.

5 This article and any supplementary material should be cited as follows: Askari S, Chao T, de Leon RD, Won DS. The effect of timing electrical stimulation to robotic-assisted stepping on neuromuscular activity and associated kinematics. J Rehabil Res Dev. 2013;50(6):875–92. http://dx.doi.org/10.1682/JRRD.2012.06.0111 Slideshow Project DOI:10.1682/JRRD.2012.06.0111JSP Conclusion Locomotor training consisting of FES timed to hind-limb movement improved activation of hind-limb muscle more so than RS alone.

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