Document Detail

The effect of mechanical damping loads on disabling action tremor.
MedLine Citation:
PMID:  8327136     Owner:  NLM     Status:  MEDLINE    
Patients with severe action tremor have uncontrollable, relatively rapid oscillatory motion super-imposed on otherwise useable slower voluntary motor activity. Because a mechanical damper produces an opposing force proportional to velocity, applying damping loads to tremorous limbs should attenuate the (high-velocity) tremor component of movement while permitting the slower purposeful portion to proceed relatively unopposed. In this study, the effect of upper extremity damping in three degrees of freedom was examined in 10 patients with cerebellar action tremor due to multiple sclerosis or traumatic brain injury. Variable amounts of damping were applied by prototype energy-dissipating orthoses which generated resistive viscous loads by means of computer-controlled magnetic particle brakes. All patients experienced statistically and functionally significant tremor reduction with the application of damping.
M L Aisen; A Arnold; I Baiges; S Maxwell; M Rosen
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Publication Detail:
Type:  Clinical Trial; Journal Article    
Journal Detail:
Title:  Neurology     Volume:  43     ISSN:  0028-3878     ISO Abbreviation:  Neurology     Publication Date:  1993 Jul 
Date Detail:
Created Date:  1993-08-09     Completed Date:  1993-08-09     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0401060     Medline TA:  Neurology     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  1346-50     Citation Subset:  AIM; IM; S    
Cornell University Medical College, Burke Rehabilitation Hospital, White Plains, NY 10605.
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MeSH Terms
Analysis of Variance
Middle Aged
Movement / physiology
Orthotic Devices*
Tremor / physiopathology,  therapy*

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