Document Detail

Integrative re-organization mechanism for reducing tremor in Parkinson's disease patients.
MedLine Citation:
PMID:  16438348     Owner:  NLM     Status:  MEDLINE    
A special movement therapy, called coordination dynamics therapy, has been reported to have the potential to improve central nervous system (CNS) functioning in Parkinson's disease patients. Electromyography using surface electrodes (sEMG) showed that the rhythmic muscle activity leading to Parkinsonian tremor was generated in the patients by the impairment of two kinds of inhibition. First, some premotor spinal oscillators organized themselves in the CNS neuronal networks without strong adequate input and second, the oscillators synchronized their firing to give rise to rhythmic muscle activity and tremor. In this paper it will be shown that highly coordinated arm and leg movements, generated when exercising on a special coordination dynamics therapy device, can reduce Parkinsonian tremor in amplitude and frequency and improve CNS functioning in the short-term memory. sEMG measurements showed upon exercising on the special coordination dynamics therapy device that the motor program improved in the short-term memory and tremor muscle activity became coordinated with the volitional motor program and reduced in size and frequency. Higher load exercising seemed to better reduce tremor muscle activity, probably because the physiologic CNS organization was more integrative then and could 'bind' stronger simultaneous pathologic tremor activity. Moreover, the rhythmic synchronized motor unit firing in different arm and leg muscles was synchronized or coordinated and changed in frequency and amplitude. It is concluded that the integrative re-organization mechanism to reduce Parkinsonian tremor is the phase and frequency coordination between neuron firing of the physiologic neuronal network state, generated by the highly coordinated arm and leg movements, and the simultaneous pathologic tremor network state, generated by the uninhibited neurons, firing synchronized oscillatory.
G Schalow; M Pääsuke; P Jaigma
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Electromyography and clinical neurophysiology     Volume:  45     ISSN:  0301-150X     ISO Abbreviation:  Electromyogr Clin Neurophysiol     Publication Date:  2005 Dec 
Date Detail:
Created Date:  2006-01-27     Completed Date:  2006-03-16     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0327533     Medline TA:  Electromyogr Clin Neurophysiol     Country:  Belgium    
Other Details:
Languages:  eng     Pagination:  407-15     Citation Subset:  IM    
Institute of Exercise Biology and Physiotherapy, Centre of Behavoiural and Health Sciences, University of Tartu, 5 Jakobi Street, Tartu 51014, Estonia.
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MeSH Terms
Arm / physiopathology
Exercise Therapy*
Leg / physiopathology
Motor Activity / physiology
Motor Neurons / physiology
Muscle, Skeletal / physiopathology
Parkinson Disease / complications*,  physiopathology
Tremor / etiology,  physiopathology,  prevention & control*

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