Human Biology : Concepts and Current Issues - With Access
Human Biology : Concepts and Current Issues - With Access
7th Edition
ISBN: 9780321874856
Author: Johnson
Publisher: PEARSON
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Chapter 6, Problem 6AWK
Summary Introduction

To review:

The reason for the continued high heart rate on the first day of aerobic exercise.

Given:

An individual has just joined a class of aerobics exercise for the first time and calculates the heart rate. After the class, they notice that the rate of the heart remains high for some time and gradually falls and return to the normal state.

Introduction

Muscles are the tissue in the body that is fibrous in nature. Muscles utilize oxygen person breathe to break down the glucose molecule to produce ATP (adenosine triphosphate) and this process is known as cellular respiration. ATP acts as the energy currency of cells and helps to meet all the energy requirements of the body.

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Why would your heart rate increase or decrease to help maintain homeostasis when you exercise?
In conditioned athletes, the resting Heart Rate is generally much lower than in non-athletes. Why?   a-because long-term exercise reduces Cardiac Output at rest to conserve energy b-because athletes have a smaller Stroke Volume at rest, causing Heart Rate to decrease as well c-because long-term exercise leads to increased vagal tone which slows Heart Rate d-because athletes have stronger ventricles and therefore a larger Stroke Volume at rest, so they require fewer bpm to achieve the same Cardiac Output
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Human Biology : Concepts and Current Issues - With Access

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