TY - GEN
T1 - The vibration-induced kinesthetic illusion enhanced by functional electrical stimulation for neurorehabilitation
AU - Okunami, Shouta
AU - Honda, Koki
AU - Kanada, Ayato
AU - Nakashima, Yasutaka
AU - Yamamoto, Motoji
N1 - Funding Information:
This research is partially supported by the research fund of the Department of Medical-Engineering Collaboration for Healthy Longevity in Kyushu University
Publisher Copyright:
© 2021 TSI Enterprises.
PY - 2021/8/1
Y1 - 2021/8/1
N2 - The final goal of this study is to propose a method to increase the sensory feedbacks for the neurorehabilitation of post-stroke patients. As the rehabilitation method for the post-stroke patients, the neurorehabilitation has been studied to reconstruct the neural network. However, in a post-stroke patient, since sensory feedbacks are weakened, the effect of the neurorehabilitation may be reduced. To increase the sensory feedbacks, some studies have tried to use the kinesthetic illusion induced by vibration stimulation on a human body. On the other hand, it is also known that there is a dead time (latency) to generate the kinesthetic illusion. Furthermore, there is an individual variation of the amount of illusion. To use the kinesthetic illusion in the neurorehabilitation, it is necessary to propose a method to shorten the dead time and increase the amount of illusion. In this study, we propose a method to increase the amount of illusion and reduce the dead time by applying electrical stimulation to human muscles in addition to vibration stimulation. To verify the effectiveness of the proposed method, two experiments were carried out. One is the experiment using vibration stimulation only to create the wrist kinesthetic illusion, and the other is using a combination of vibration stimulation and the Functional Electrical Stimulation (FES) to create the illusion. The experimental results showed that the dead time was reduced by 16% and the angular velocity of the illusion (i.e. the amount of illusion) was increased by 250% compared with the only-vibration stimulation condition. These results suggest that the proposed method is useful as a method to increase sensory feedbacks in neurorehabilitation.
AB - The final goal of this study is to propose a method to increase the sensory feedbacks for the neurorehabilitation of post-stroke patients. As the rehabilitation method for the post-stroke patients, the neurorehabilitation has been studied to reconstruct the neural network. However, in a post-stroke patient, since sensory feedbacks are weakened, the effect of the neurorehabilitation may be reduced. To increase the sensory feedbacks, some studies have tried to use the kinesthetic illusion induced by vibration stimulation on a human body. On the other hand, it is also known that there is a dead time (latency) to generate the kinesthetic illusion. Furthermore, there is an individual variation of the amount of illusion. To use the kinesthetic illusion in the neurorehabilitation, it is necessary to propose a method to shorten the dead time and increase the amount of illusion. In this study, we propose a method to increase the amount of illusion and reduce the dead time by applying electrical stimulation to human muscles in addition to vibration stimulation. To verify the effectiveness of the proposed method, two experiments were carried out. One is the experiment using vibration stimulation only to create the wrist kinesthetic illusion, and the other is using a combination of vibration stimulation and the Functional Electrical Stimulation (FES) to create the illusion. The experimental results showed that the dead time was reduced by 16% and the angular velocity of the illusion (i.e. the amount of illusion) was increased by 250% compared with the only-vibration stimulation condition. These results suggest that the proposed method is useful as a method to increase sensory feedbacks in neurorehabilitation.
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U2 - 10.23919/WAC50355.2021.9559448
DO - 10.23919/WAC50355.2021.9559448
M3 - Conference contribution
AN - SCOPUS:85117174479
T3 - World Automation Congress Proceedings
SP - 296
EP - 301
BT - 2021 World Automation Congress, WAC 2021
PB - IEEE Computer Society
T2 - 2021 World Automation Congress, WAC 2021
Y2 - 1 August 2021 through 5 August 2021
ER -