Journal of Applied Physiology
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

J Appl Physiol 52: 642-646, 1982;
8750-7587/82 $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 Diepstra, G.
Right arrow Articles by Mitchell, J. H.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Diepstra, G.
Right arrow Articles by Mitchell, J. H.

Journal of Applied Physiology, Vol 52, Issue 3 642-646, Copyright © 1982 by American Physiological Society

ARTICLES

Distribution of cardiac output during static exercise in the conscious cat

G. Diepstra, W. Gonyea and J. H. Mitchell

Blood flows to major organs were measured in conscious cats to study the changes in the distribution of cardiac output during voluntary static (isometric) exercise. Five animals were operantly conditioned to hold a bar against a fixed resistance for 30 s. Organ flows were measured during rest and exercise by injecting 25-micrometer radioactive microspheres into the left atrium or left ventricle. Increases were observed during exercise in heart rate (18%), mean arterial pressure (25%), left ventricular systolic pressure (17%), and rate of left ventricular development (26%). Static exercise produced significant changes in flow (ml . min-1 .g-1) to the kidneys (-1.09 +/- 0.24), spleen (-0.85 +/- 0.21), and exercising muscles (+0.13 +/- 0.08), while flows to liver, heart, brain, and nonexercising muscle were not significantly changed from control levels. Denervation of the left kidney abolished the decrease in flow to that kidney during exercise. Thus, static exercise appears to produce a significant increase in blood flow to exercising muscles and significant reductions in blood flow to spleen and kidneys. The reduction in renal blood flow is mediated by a neural mechanism.


This article has been cited by other articles:


Home page
 Am. J. Physiol. Heart Circ. Physiol.Home page
A. Momen, J. Cui, P. McQuillan, and L. I. Sinoway
Local prostaglandin blockade attenuates muscle mechanoreflex-mediated renal vasoconstriction during muscle stretch in humans
Am J Physiol Heart Circ Physiol, May 1, 2008; 294(5): H2184 - H2190.
[Abstract] [Full Text] [PDF]

Home page
 Am. J. Physiol. Heart Circ. Physiol.Home page
S. Koba, T. Yoshida, and N. Hayashi
Differential sympathetic outflow and vasoconstriction responses at kidney and skeletal muscles during fictive locomotion
Am J Physiol Heart Circ Physiol, February 1, 2006; 290(2): H861 - H868.
[Abstract] [Full Text] [PDF]

Home page
 Am. J. Physiol. Heart Circ. Physiol.Home page
A. Momen, D. Bower, U. A. Leuenberger, J. Boehmer, S. Lerner, E. J. Alfrey, B. Handly, and L. I. Sinoway
Renal vascular response to static handgrip exercise: sympathetic vs. autoregulatory control
Am J Physiol Heart Circ Physiol, October 1, 2005; 289(4): H1770 - H1776.
[Abstract] [Full Text] [PDF]

Home page
 Am. J. Physiol. Heart Circ. Physiol.Home page
A. Momen, U. A. Leuenberger, C. A. Ray, S. Cha, B. Handly, and L. I. Sinoway
Renal vascular responses to static handgrip: role of muscle mechanoreflex
Am J Physiol Heart Circ Physiol, August 7, 2003; 285(3): H1247 - H1253.
[Abstract] [Full Text] [PDF]


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