Introduction: the whole-body response to exercise

Published on 26/02/2015 by admin

Filed under Cardiovascular

Last modified 26/02/2015

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Chapter 1 Introduction

the whole-body response to exercise

After reading this chapter, you should:

• appreciate that absolute work capacity is ultimately limited by cardiovascular performance
• understand the overall cardiovascular changes that occur during exercise
• be ready to track the mechanisms that underlie these changes through the succeeding chapters.

The basic pattern of cardiovascular response to acute exercise is straightforward. It is centred on the principle that the cardiovascular system fulfils three primary functions: to deliver nutrients and oxygen to cells of the body’s tissues, to remove metabolites from the same sites and to regulate heat exchange between body and environment so as to maintain a stable core temperature. It is self-evident that increased metabolic activity in skeletal muscles must require increased local blood flow and that this metabolic activity must produce heat that needs to be dissipated.

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