Cardiac Output of an Exercising Athlete
Not what you're looking for?
The cardiac output of an exercising athlete can increase from 5 to 25 litres or more. Explain what is a cardiac output and describe how such a large increase can occur.
Purchase this Solution
Solution Summary
Discusses the cardiac output of an exercising athlete.
Solution Preview
Cardiac output is the amount of blood ejected from the left ventricle into the aorta each minute. It can also be measured by the amount of blood ejected from the right ventricle into the pulmonary trunk each minute. Either way, it should be the same.
Cardiac output (CO) equals the stroke volume (SV), the volume of blood ejected by the ventricle with each contraction, times the heart rate (HR).
Therefore, CO = SV x HR
At rest, for a typical adult, stroke volume is about 70 ml/beat. A normal heart rate is about 70 beats/minute or ...
Purchase this Solution
Free BrainMass Quizzes
Basic Immunology Quiz
Intro to immuno quiz. Covers the basics of immunology and recognition of foreign substances by the body.
Vision and Oculomotor Control
This quiz will test the student's knowledge of the neural underpinnings of the visual system and its central pathways.
BioChemistry Basics
This Quiz will test your knowledge of the amino acids used in biological systems
How Much Do You Know About Genetic Inheritance?
Most of us studied the basics of dominant and recessive genes at some point. However, genetics are much more complicated than this. How far beyond the basics does your knowledge go?
Basic Concepts in Neuroscience
This quiz provides a review of the basic concepts in neuroscience.