P35 Differences between voluntary and involuntary muscle activation in Parkinsonian patients

2020 ◽  
Vol 131 (4) ◽  
pp. e196
Author(s):  
C. Groß ◽  
M. Rubly ◽  
J.Bürmann ◽  
J. Spiegel ◽  
M. Unger ◽  
...  
Keyword(s):  
Muscle Activation ◽  
Involuntary Muscle

Basic and Translational Neuroscience of Childhood-Onset Dystonia: A Control-Theory Perspective

2018 ◽  
Vol 41 (1) ◽  
pp. 41-59 ◽  
Author(s):  
Terence D. Sanger
Keyword(s):  
Muscle Activation ◽  
Distributed Network ◽  
Childhood Onset ◽  
Specific Mechanism ◽  
Involuntary Muscle ◽  
Postural Stabilization ◽  
Reflex Gain ◽  
Cortical Regions ◽  
Mechanism Of Failure ◽  
The Relationship

Dystonia is a collection of symptoms with involuntary muscle activation causing hypertonia, hyperkinetic movements, and overflow. In children, dystonia can have numerous etiologies with varying neuroanatomic distribution. The semiology of dystonia can be explained by gain-of-function failure of a feedback controller that is responsible for stabilizing posture and movement. Because postural control is maintained by a widely distributed network, many different anatomic regions may be responsible for symptoms of dystonia, although all features of dystonia can be explained by uncontrolled activation or hypersensitivity of motor cortical regions that can cause increased reflex gain, inserted postures, or sensitivity to irrelevant sensory variables. Effective treatment of dystonia in children requires an understanding of the relationship between etiology, anatomy, and the specific mechanism of failure of postural stabilization.

Surface EMG crosstalk during phasic involuntary muscle activation in the nociceptive withdrawal reflex

2012 ◽  
Vol 46 (2) ◽  
pp. 228-236 ◽  
Author(s):  
Ken S. Frahm ◽  
Michael B. Jensen ◽  
Dario Farina ◽  
Ole K. Andersen
Keyword(s):  
Muscle Activation ◽  
Surface Emg ◽  
Nociceptive Withdrawal Reflex ◽  
Withdrawal Reflex ◽  
Involuntary Muscle
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