Document Detail

Cardiac-locomotor coupling while finger tapping.
MedLine Citation:
PMID:  2087362     Owner:  NLM     Status:  MEDLINE    
Coupling between cardiac and locomotor rhythms has been identified while people walk, run, hop and cycle at cadences natural to them. To test the hypothesis that cardiac-locomotor coupling occurs during finger tapping, we studied 20 normal subjects tapping a telegraph key at a comfortable rate for 10 min. 15 subjects (75%) coupled significantly at one or more single-digit integer ratio (heart/tapping rate), the most common of which was 1:2. Such coupling should be considered a potentially confounding variable when studying finger tapping in subjects with disease or medication affecting heart rate. Also, the identification of coupling during the repetitive activity of small upper-extremity muscles suggests that neither increases in cardiac load nor impact-loading, two suggested explanations for why coupling occurs, are necessary for the phenomenon.
R L Kirby; S E Carr; D A MacLeod
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Perceptual and motor skills     Volume:  71     ISSN:  0031-5125     ISO Abbreviation:  Percept Mot Skills     Publication Date:  1990 Dec 
Date Detail:
Created Date:  1991-05-17     Completed Date:  1991-05-17     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0401131     Medline TA:  Percept Mot Skills     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  1099-104     Citation Subset:  IM    
Department of Medicine, Dalhousie University, Halifax, Nova Scotia, Canada.
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MeSH Terms
Heart Rate*
Motor Skills*
Reaction Time

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

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