Abstract
Exoskeletons have been used successfully for functional training of human motions. Our designs of the Cable-driven Arm Exoskeleton (CAREX) are targeted to improve arm function in patients with stroke. In this study, we focus on how muscle activation patterns of subjects change during movements with and without CAREX. Our goal was to evaluate whether CAREX distorts the natural pattern of EMG activity in healthy human subjects during arm movements. Eight healthy subjects performed point-To-point reaching tasks under two conditions: (a) with or without CAREX, and (b) with or without a 5 lb weight attached to their wrist. The EMG signals of 10 muscles were recorded and processed. The results showed that (i) EMG pattern of the subjects while wearing CAREX and while not wearing CAREX showed a high correlation, suggesting little alteration to normal EMG patterns while wearing CAREX; (ii) The subjects showed significantly lower muscle activation when they wore CAREX; (iii) The high correlation and the lower activation were observed in both the no weight condition and the 5 lb weight condition. Overall, the results suggest that CAREX can help subjects reduce the magnitude of muscle activation while preserving normal muscle activation patterns.
| Original language | English (US) |
|---|---|
| Title of host publication | Proceedings of the IEEE/RAS-EMBS International Conference on Rehabilitation Robotics |
| Subtitle of host publication | Enabling Technology Festival, ICORR 2015 |
| Editors | David Braun, Haoyong Yu, Domenico Campolo |
| Publisher | IEEE Computer Society |
| Pages | 73-78 |
| Number of pages | 6 |
| ISBN (Electronic) | 9781479918072 |
| DOIs | |
| State | Published - Sep 28 2015 |
| Externally published | Yes |
| Event | 14th IEEE/RAS-EMBS International Conference on Rehabilitation Robotics, ICORR 2015 - Singapore, Singapore Duration: Aug 11 2015 → Aug 14 2015 |
Publication series
| Name | IEEE International Conference on Rehabilitation Robotics |
|---|---|
| Volume | 2015-September |
| ISSN (Print) | 1945-7898 |
| ISSN (Electronic) | 1945-7901 |
Conference
| Conference | 14th IEEE/RAS-EMBS International Conference on Rehabilitation Robotics, ICORR 2015 |
|---|---|
| Country | Singapore |
| City | Singapore |
| Period | 8/11/15 → 8/14/15 |
Fingerprint
ASJC Scopus subject areas
- Control and Systems Engineering
- Rehabilitation
- Electrical and Electronic Engineering
Cite this
The Effect of CAREX on muscle activation during a point-To-point reaching task. / Jin, Xin; Aluru, Viswanath; Raghavan, Preeti; Agrawal, Sunil K.
Proceedings of the IEEE/RAS-EMBS International Conference on Rehabilitation Robotics: Enabling Technology Festival, ICORR 2015. ed. / David Braun; Haoyong Yu; Domenico Campolo. IEEE Computer Society, 2015. p. 73-78 7281178 (IEEE International Conference on Rehabilitation Robotics; Vol. 2015-September).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - The Effect of CAREX on muscle activation during a point-To-point reaching task
AU - Jin, Xin
AU - Aluru, Viswanath
AU - Raghavan, Preeti
AU - Agrawal, Sunil K.
PY - 2015/9/28
Y1 - 2015/9/28
N2 - Exoskeletons have been used successfully for functional training of human motions. Our designs of the Cable-driven Arm Exoskeleton (CAREX) are targeted to improve arm function in patients with stroke. In this study, we focus on how muscle activation patterns of subjects change during movements with and without CAREX. Our goal was to evaluate whether CAREX distorts the natural pattern of EMG activity in healthy human subjects during arm movements. Eight healthy subjects performed point-To-point reaching tasks under two conditions: (a) with or without CAREX, and (b) with or without a 5 lb weight attached to their wrist. The EMG signals of 10 muscles were recorded and processed. The results showed that (i) EMG pattern of the subjects while wearing CAREX and while not wearing CAREX showed a high correlation, suggesting little alteration to normal EMG patterns while wearing CAREX; (ii) The subjects showed significantly lower muscle activation when they wore CAREX; (iii) The high correlation and the lower activation were observed in both the no weight condition and the 5 lb weight condition. Overall, the results suggest that CAREX can help subjects reduce the magnitude of muscle activation while preserving normal muscle activation patterns.
AB - Exoskeletons have been used successfully for functional training of human motions. Our designs of the Cable-driven Arm Exoskeleton (CAREX) are targeted to improve arm function in patients with stroke. In this study, we focus on how muscle activation patterns of subjects change during movements with and without CAREX. Our goal was to evaluate whether CAREX distorts the natural pattern of EMG activity in healthy human subjects during arm movements. Eight healthy subjects performed point-To-point reaching tasks under two conditions: (a) with or without CAREX, and (b) with or without a 5 lb weight attached to their wrist. The EMG signals of 10 muscles were recorded and processed. The results showed that (i) EMG pattern of the subjects while wearing CAREX and while not wearing CAREX showed a high correlation, suggesting little alteration to normal EMG patterns while wearing CAREX; (ii) The subjects showed significantly lower muscle activation when they wore CAREX; (iii) The high correlation and the lower activation were observed in both the no weight condition and the 5 lb weight condition. Overall, the results suggest that CAREX can help subjects reduce the magnitude of muscle activation while preserving normal muscle activation patterns.
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UR - http://www.scopus.com/inward/citedby.url?scp=84946086169&partnerID=8YFLogxK
U2 - 10.1109/ICORR.2015.7281178
DO - 10.1109/ICORR.2015.7281178
M3 - Conference contribution
T3 - IEEE International Conference on Rehabilitation Robotics
SP - 73
EP - 78
BT - Proceedings of the IEEE/RAS-EMBS International Conference on Rehabilitation Robotics
A2 - Braun, David
A2 - Yu, Haoyong
A2 - Campolo, Domenico
PB - IEEE Computer Society
ER -