1. Basics of Cardio Respiratory Endurance
Chapter 7

2. Aerobic Activities and the Body
Cardio
Aerobic activity is continuous activity that requires large amounts of oxygen

3. Your Circulatory System
The circulatory system consists of the heart, blood, and blood vessels; sometimes called the cardiovascular system.
The heart- the main component of the circulatory system.
The Heart Video
Hemoglobin- is an iron rich compound in the blood the helps carry oxygen.
Stroke Volume- the amount of blood pumped per beat
Blood vessels- the way blood is transported in the body
Arteries- carry blood from the heart to the major extremities (oxygenated)
Veins- deliver deoxygenated blood back to the heart
Capillaries- deliver oxygen and other nutrients to individual cells.

4. Your Respiratory System
Respiratory System- The body system that exchanges gases between your body and the environment.
The-Respiratory-System Video
Diaphragm- muscle found between the chest cavity and abdomen.

5. Benefits of Aerobic Activity
Increases stroke volume (heart works more efficiently)
Conditions muscles
Increased Energy
Less Stress
Look and feel better
Will Power

6. Problems and Care of Your Heart and Lungs
Lifestyle Disease- diseases that are a result of certain lifestyle choices, such as:
Inactivity
Being overweight
Smoking and using other forms of tobacco
Eating unhealthy foods

7. Cardiovascular Disease (CVD)
Cardiovascular Disease- any medical disorder that affects the heart or blood vessels.
Angina
Aortic disease
Atrial fibrillation
Blood clots
Chest pain
Congestive heart failure
Heart attack
Murmur
Palpitations
Just to name a few

8. Atherosclerosis
Atherosclerosis- a condition in which fatty deposits called plaque build up inside the arteries, restricting or cutting of blood flow.

9. Heart Attack
One million people in the United States suffer a heart attack.
A heart attack results from a blockage of a blood vessel that feeds the heart muscle.
Heart Attack Signs Clip

10. Other Diseases Sudden Cardiac Death:
Less than 35 attributed to heart defect
Over 35 attributed to atherosclerosis
Stroke- when the blood flow to a persons brain is interrupted or cut off entirely by the blockage of an artery.
Sudden numbness in face or limbs (especially on one side)
Sudden confusion, trouble speaking
Trouble seeing out of one or both eyes
Trouble walking or dizziness
Sudden severe headache with no known cause

11. Other Diseases
Peripheral Vascular Disease- CVD that occurs mainly in the legs, and less frequently in the arms
High Blood Pressure/Hypertension (the silent killer)- a key risk factor in heart attacks, strokes, and heart failure
Can live for years without knowing you have it

12. Diseases of the Lungs
200,000 deaths from lung cancer each year, most preventable cause of death.
Emphysema- is a disease in which the small airways of the lungs lost their normal elasticity, making them less efficient in helping move air in and out of the lungs.
Changeable Risk Factor:
Avoiding tobacco

13. Measuring Cardiorespiratory Endurance
Maximal Oxygen Consumption- the largest amount of oxygen your body is able to process during strenuous aerobic exercise
The more fit you are the higher your VO2 Max
Slow-Twitch Muscle Fiber- muscle fibers that contract at a slow rate
Endurance activities
Fast-Twitch Muscle Fiber- muscle fibers that contract rapidly, allowing for greater muscle strength

14. Factors Affecting Cardiorespiratory Endurance
Age
Heredity
Gender
Body composition
Level of conditioning

15. Aerobic vs. Anaerobic
Aerobic Activity- Aerobic activity is continuous activity that requires large amounts of oxygen
Hiking
Cross country skiing
Anaerobic Activity- higher levels of muscular strength and muscular endurance and flexibility
40 yard dash
Fast break in basketball
Swimming 100 meters as fast as you can

16. Interval Training
A program in which high-intensity physical activities alternate with low-intensity activities
Advantages:
Workout at higher intensity for longer period of time compare to a traditional workout
Burn more calories
Improves both health and skill-related fitness