Merging and Fractionation of Muscle Synergy Indicate the Recovery Process in Patients with Hemiplegia: The First Study of Patients after Subacute Stroke
Joint Authors
Hashiguchi, Yu
Ohata, Koji
Kitatani, Ryosuke
Yamakami, Natsuki
Sakuma, Kaoru
Osako, Sayuri
Aga, Yumi
Watanabe, Aki
Yamada, Shigehito
Source
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-12-19
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
Loss of motor coordination is one of the main problems for patients after stroke.
Muscle synergy is widely accepted as an indicator of motor coordination.
Recently, the characteristics of muscle synergy were quantitatively evaluated using nonnegative matrix factorization (NNMF) with surface electromyography.
Previous studies have identified that the number and structure of synergies were associated with motor function in patients after stroke.
However, most of these studies had a cross-sectional design, and the changes in muscle synergy during recovery process are not clear.
In present study, two consecutive measurements were conducted for subacute patients after stroke and the change of number and structure of muscle synergies during gait were determined using NNMF.
Results showed that functional change did not rely on number of synergies in patients after subacute stroke.
However, the extent of merging of the synergies was negatively associated with an increase in muscle strength and the range of angle at ankle joint.
Our results suggest that the neural changes represented by NNMF were related to the longitudinal change of function and gait pattern and that the merging of synergy is an important marker in patients after subacute stroke.
American Psychological Association (APA)
Hashiguchi, Yu& Ohata, Koji& Kitatani, Ryosuke& Yamakami, Natsuki& Sakuma, Kaoru& Osako, Sayuri…[et al.]. 2016. Merging and Fractionation of Muscle Synergy Indicate the Recovery Process in Patients with Hemiplegia: The First Study of Patients after Subacute Stroke. Neural Plasticity،Vol. 2016, no. 2016, pp.1-7.
https://search.emarefa.net/detail/BIM-1113185
Modern Language Association (MLA)
Hashiguchi, Yu…[et al.]. Merging and Fractionation of Muscle Synergy Indicate the Recovery Process in Patients with Hemiplegia: The First Study of Patients after Subacute Stroke. Neural Plasticity No. 2016 (2016), pp.1-7.
https://search.emarefa.net/detail/BIM-1113185
American Medical Association (AMA)
Hashiguchi, Yu& Ohata, Koji& Kitatani, Ryosuke& Yamakami, Natsuki& Sakuma, Kaoru& Osako, Sayuri…[et al.]. Merging and Fractionation of Muscle Synergy Indicate the Recovery Process in Patients with Hemiplegia: The First Study of Patients after Subacute Stroke. Neural Plasticity. 2016. Vol. 2016, no. 2016, pp.1-7.
https://search.emarefa.net/detail/BIM-1113185
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1113185