VALERIE BURGE-HALLTNCC HEALTH 116

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Cardiorespiratory Cardiorespiratory FitnessFitness

Cardio Respiratory System: The Basics

The system that circulates blood throughout

the body; consists of: Heart: pumps deoxygenated blood into the lungs

(right/pulmonary) and delivers oxygen rich blood to the rest of the body (left/systemic)

Blood Vessels: veins carry blood to the hears; arteries carry blood away from the heart; capillaries (tiny veins) deliver oxygen rich blood to the tissues.

Lungs (respiratory system): supplies oxygen to the body and removes carbon dioxide

Activity Function and Energy Production

Function of the cardiorespiratory system: At rest: heart beats 50-90 beats per minute; 12-20

breaths per minute

During exercise: heart rate increases to 170-210 beats per minute; increase stroke volume and cardiac output of heart; blood flows to muscles; 40-60 breathes per minute

Blood Pressure

A measure of the force exerted against the walls of the vessels by the blood flowing through them.

Systolic Blood Pressure

Highest blood pressure when the heart contracts.

Diastolic Blood Pressure

Lowest blood pressure between contractions of the heart.

What is considered normal for most Americans?

Improved functioning

Improved metabolism

Reduced Risk of Chronic Disease

Control of Body Fat

Improved Immune Functioning

Improved Emotional Well-being

Benefits of Cardiorespiratory Exercise

Assessing Cardiorespiratory Fitness

These are simple tests that can be used to test your maximal oxygen consumption during activity:

1.1-mile walk test: based on amount of time it takes to complete a brisk 1-mile walk and your heart rate at the end; fast time and low heart rate indicate a high level of cardiorespiratory endurance

2.3 minute step test: based on the rate at which your pulse returns to normal after intense activity; the faster it returns to normal, the higher your cardiorespiratory endurance

3.1.5 mile run-walk test: based on amount of time it takes to complete; the faster the speed, the better your oxygen consumption

Get Up and Get Moving

Homework:Choose one of the techniques for assessing

cardiorespitory fitness?

Use pages 80 to 82 in your book to get directions and to record your results.