Journal of Applied Physiology Watch the video to see how APS reaches out to developing nations.
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

J Appl Physiol 68: 2358-2361, 1990;
8750-7587/90 $5.00
This Article
Right arrow Full Text (PDF)
Right arrow Submit a response
Right arrow Alert me when this article is cited
Right arrow Alert me when eLetters are posted
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Rogers, H. B.
Right arrow Articles by Mitchell, J. H.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Rogers, H. B.
Right arrow Articles by Mitchell, J. H.

Journal of Applied Physiology, Vol 68, Issue 6 2358-2361, Copyright © 1990 by American Physiological Society

ARTICLES

Cerebral blood flow during static exercise in humans

H. B. Rogers, T. Schroeder, N. H. Secher and J. H. Mitchell
Department of Anesthesia, Rigshospitalet, University of Copenhagen, Denmark.

Cerebral blood flow (CBF) was determined in humans at rest and during four consecutive unilateral static contractions of the knee extensors. Each contraction was maintained for 3 min 15 s with the subjects in a semisupine position. The contractions corresponded to 8, 16, 24, and 32% of the maximal voluntary contraction (MVC) and utilized alternate legs. CBF (measured by the 133Xe clearance technique) was expressed by a noncompartmental flow index (ISI). Heart rate and mean arterial pressure increased from resting values of 73 (55-80) beats/min and 88 (74-104) mmHg to 106 (86-138) beats/min and 124 (102-146) mmHg, respectively (P less than 0.0005), during the contraction at 32% MVC. Arterial PCO2 and central venous pressure did not change. Corrected to the average resting PCO2, CBF during control was 55 (35-73) ml.100 g-1.min-1 and remained constant during contractions. Cerebral vascular resistance increased from 1.5 (1.0-2.2) to 2.4 (1.4-3.0) mmHg. 100 g.min.ml-1 (P less than 0.025) at 32% of MVC. There was no difference in CBF between the two hemispheres at rest or during exercise. In contrast to dynamic leg exercise, static leg exercise is not associated with an increase in global CBF when measured by the 133Xe clearance technique.


This article has been cited by other articles:


Home page
 J. Appl. Physiol.Home page
N. H. Secher, T. Seifert, and J. J. Van Lieshout
Cerebral blood flow and metabolism during exercise: implications for fatigue
J Appl Physiol, January 1, 2008; 104(1): 306 - 314.
[Abstract] [Full Text] [PDF]

Home page
 J. Appl. Physiol.Home page
F. Pott, J. J. Van Lieshout, K. Ide, P. Madsen, and N. H. Secher
Middle cerebral artery blood velocity during intense static exercise is dominated by a Valsalva maneuver
J Appl Physiol, April 1, 2003; 94(4): 1335 - 1344.
[Abstract] [Full Text] [PDF]

Home page
 J. Appl. Physiol.Home page
C. A. Giller, A. M. Giller, C. R. Cooper, and M. R. Hatab
Evaluation of the cerebral hemodynamic response to rhythmic handgrip
J Appl Physiol, June 1, 2000; 88(6): 2205 - 2213.
[Abstract] [Full Text] [PDF]

Home page
 Br. J. Ophthalmol.Home page
D. W Evans, A. Harris, M. Garrett, H. S. Chung, and L. Kagemann
Glaucoma patients demonstrate faulty autoregulation of ocular blood flow during posture change
Br. J. Ophthalmol., July 1, 1999; 83(7): 809 - 813.
[Abstract] [Full Text]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Visit Other APS Journals Online