Key result
Voluntary static exercise in cats increases muscle blood flow while reducing splenic and renal perfusion.
Why the study?
The study aimed to investigate changes in the distribution of cardiac output during voluntary static (isometric) exercise in conscious cats.
Does voluntary static exercise alter the distribution of cardiac output in conscious cats?
Comparison
Static exercise vs rest
Design
Physiological study measuring organ blood flows using radioactive microspheres
Authors
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Hypothesis-generating for neural redistribution of cardiac output during static exercise; leaves open translation to human physiology.
Does voluntary static exercise alter the distribution of cardiac output in conscious cats?
Static exercise in conscious cats redistributes cardiac output by increasing flow to exercising muscles and decreasing flow to the kidneys and spleen via neural mechanisms.
Diepstra et al. (1982) studied this question. Voluntary static (isometric) exercise vs. Rest was evaluated on Changes in organ blood flow. Voluntary static exercise in conscious cats significantly increased blood flow to exercising muscles (+0.13 ml/min/g) and reduced flow to the spleen (-0.85 ml/min/g) and kidneys (-1.09 ml/min/g).
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