Document Detail

Cerebral blood flow and neurovascular coupling during static exercise.
MedLine Citation:
PMID:  24682807     Owner:  NLM     Status:  Publisher    
The effect of static exercise on neurovascular coupling (NVC) was investigated by measuring the blood flow velocity in the posterior cerebral artery (PCAv) during 2-min static handgrip exercises (HG) at 30 % of the maximum voluntary contraction in 17 healthy males. NVC was estimated as the relative change in PCAv from eye closing to a peak response to looking at a reversed checkerboard. The conductance index (CI) was calculated by dividing PCAv by the mean arterial pressure (MAP). HG significantly increased PCAv from the resting baseline, with an increase in MAP and a reduction in CI, whereas NVC did not differ significantly between the resting and HG. Compared to the resting baseline, HG significantly increased the pressor response to visual stimulation by 5.6 ± 1.1 (mean ± SE) mmHg, while the CI response was significantly inhibited by -7.0 ± 1.5 %. These results indicate that NVC was maintained during HG via contributions from both the pressor response and vasodilatation.
Yuji Yamaguchi; Hideaki Kashima; Yoshiyuki Fukuba; Naoyuki Hayashi
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2014-3-30
Journal Detail:
Title:  The journal of physiological sciences : JPS     Volume:  -     ISSN:  1880-6562     ISO Abbreviation:  J Physiol Sci     Publication Date:  2014 Mar 
Date Detail:
Created Date:  2014-3-31     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101262417     Medline TA:  J Physiol Sci     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
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