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Flexible Recruitments of Fundamental Muscle Synergies in the Trunk and Lower Limbs for Highly Variable Movements and Postures
- Source :
- Sensors (Basel, Switzerland), Sensors, Vol 21, Iss 6186, p 6186 (2021), Sensors, Volume 21, Issue 18
- Publication Year :
- 2021
- Publisher :
- MDPI, 2021.
-
Abstract
- The extent to which muscle synergies represent the neural control of human behavior remains unknown. Here, we tested whether certain sets of muscle synergies that are fundamentally necessary across behaviors exist. We measured the electromyographic activities of 26 muscles including bilateral trunk and lower limb muscles during 24 locomotion, dynamic and static stability tasks, and extracted the muscle synergies using non-negative matrix factorization. Our results showed that 13 muscle synergies that may have unique functional roles accounted for almost all 24 tasks by combinations of single and/or merging of synergies. Therefore, our results may support the notion of the low dimensionality in motor outputs, in which the central nervous system flexibly recruits fundamental muscle synergies to execute diverse human behaviors. Further studies using manipulations of the central nervous system and/or neural recording are required the neural representation with such fundamental components of muscle synergies.
- Subjects :
- Computer science
Movement
Posture
TP1-1185
Human behavior
Biochemistry
Lower limb
Article
Matrix decomposition
Analytical Chemistry
muscle synergies
Neural control
motor control
Humans
movements
Electrical and Electronic Engineering
Muscle, Skeletal
Instrumentation
Electromyography
Chemical technology
Representation (systemics)
Motor control
postures
Trunk
Atomic and Molecular Physics, and Optics
Variable (computer science)
the central nervous system
the neural control
Lower Extremity
Neuroscience
Subjects
Details
- Language :
- English
- ISSN :
- 14248220
- Volume :
- 21
- Issue :
- 18
- Database :
- OpenAIRE
- Journal :
- Sensors (Basel, Switzerland)
- Accession number :
- edsair.doi.dedup.....9964732dc54d8b82e0f954ca5c044590