Document Detail

Inhibitory effects of circumferential pressure on flexor carpi radialis H-reflex in adults with neurological deficits.
MedLine Citation:
PMID:  20391874     Owner:  NLM     Status:  MEDLINE    
The effects of circumferential air-splint pressure on the flexor carpi radialis H-reflex in 22 participants with cerebrovascular accident and 5 with spinal cord injury were examined. H-reflexes were assessed by measuring the peak-to-peak amplitude change before, during, and after circumferential pressure was applied to the forearm. 12 H-reflexes (H/M ratio: M = 25%; SD = 14) were recorded before pressure application to obtain a baseline value for comparison of data. A pneumatic 34-cm air splint inflated to 51-60 mmHg provided pressure around the forearm. H-reflex recordings were taken at 1, 3, and 5 min. during and 1 min. after application of pressure. A one-way analysis of variance with repeated measures was applied to compare pressure and postpressure measurements against the baseline value. Tukey multiple-comparison tests were used when significant F ratios were noted. Analysis indicated H-reflex amplitudes decreased significantly at 1, 3, and 5 min. during pressure and quickly returned to baseline when pressure was released. The study suggests air splints decreased the H-reflex in participants with neurological deficits and may be used in the upper extremity temporarily to reduce muscle activity associated with neurological dysfunction.
James Agostinucci
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Perceptual and motor skills     Volume:  110     ISSN:  0031-5125     ISO Abbreviation:  Percept Mot Skills     Publication Date:  2010 Feb 
Date Detail:
Created Date:  2010-04-15     Completed Date:  2010-05-03     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0401131     Medline TA:  Percept Mot Skills     Country:  United States    
Other Details:
Languages:  eng     Pagination:  89-103     Citation Subset:  IM    
Physical Therapy Department, University of Rhode Island, Kingston 02881, USA.
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MeSH Terms
Forearm / innervation*
H-Reflex / physiology*
Middle Aged
Motor Neurons / physiology
Muscle Tonus / physiology
Muscle, Skeletal / innervation*
Neural Inhibition / physiology*
Reference Values
Spinal Cord Injuries / physiopathology*
Stroke / physiopathology*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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