Motor Control System for Adaptation of Healthy Individuals and Recovery of Poststroke Patients: A Case Study on Muscle Synergies
Joint Authors
Moreno, Juan C.
Ozaki, Ken-ichi
Kondo, Izumi
Shimoda, Shingo
Alnajjar, Fady
Source
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-03-27
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Abstract EN
Understanding the complex neuromuscular strategies underlying behavioral adaptation in healthy individuals and motor recovery after brain damage is essential for gaining fundamental knowledge on the motor control system.
Relying on the concept of muscle synergy, which indicates the number of coordinated muscles needed to accomplish specific movements, we investigated behavioral adaptation in nine healthy participants who were introduced to a familiar environment and unfamiliar environment.
We then compared the resulting computed muscle synergies with those observed in 10 moderate-stroke survivors throughout an 11-week motor recovery period.
Our results revealed that computed muscle synergy characteristics changed after healthy participants were introduced to the unfamiliar environment, compared with those initially observed in the familiar environment, and exhibited an increased neural response to unpredictable inputs.
The altered neural activities dramatically adjusted through behavior training to suit the unfamiliar environment requirements.
Interestingly, we observed similar neuromuscular behaviors in patients with moderate stroke during the follow-up period of their motor recovery.
This similarity suggests that the underlying neuromuscular strategies for adapting to an unfamiliar environment are comparable to those used for the recovery of motor function after stroke.
Both mechanisms can be considered as a recall of neural pathways derived from preexisting muscle synergies, already encoded by the brain’s internal model.
Our results provide further insight on the fundamental principles of motor control and thus can guide the future development of poststroke therapies.
American Psychological Association (APA)
Alnajjar, Fady& Moreno, Juan C.& Ozaki, Ken-ichi& Kondo, Izumi& Shimoda, Shingo. 2019. Motor Control System for Adaptation of Healthy Individuals and Recovery of Poststroke Patients: A Case Study on Muscle Synergies. Neural Plasticity،Vol. 2019, no. 2019, pp.1-13.
https://search.emarefa.net/detail/BIM-1201662
Modern Language Association (MLA)
Alnajjar, Fady…[et al.]. Motor Control System for Adaptation of Healthy Individuals and Recovery of Poststroke Patients: A Case Study on Muscle Synergies. Neural Plasticity No. 2019 (2019), pp.1-13.
https://search.emarefa.net/detail/BIM-1201662
American Medical Association (AMA)
Alnajjar, Fady& Moreno, Juan C.& Ozaki, Ken-ichi& Kondo, Izumi& Shimoda, Shingo. Motor Control System for Adaptation of Healthy Individuals and Recovery of Poststroke Patients: A Case Study on Muscle Synergies. Neural Plasticity. 2019. Vol. 2019, no. 2019, pp.1-13.
https://search.emarefa.net/detail/BIM-1201662
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1201662