Transcript Chapter 7 Basics of Cardiorespiratory Endurance

Chapter 7:
Basics of Cardiorespiratory
Endurance
Lessons: 1-4
PEBPE Standards
• PEBPE2.d: The learner will be able to integrate health and skill related fitness components
into their daily activities.
• PEBPE3.a: The learner will participate in fitness assessments and developmentally
appropriate health-related fitness activities.
• PEBPE3.c: The learner will participate regularly in all fitness activities while dressing
safely/appropriately, and actively engage in all practice and exercise settings.
• PEBPE6.a: The learner will describe the role physical activity plays, in reducing the risk
factor for disease, by maintaining appropriate health-related fitness components.
• PEBPE6.b: The learner will describe the life-long benefits of regular physical activity.
• PEBPE6.c: The learner will develop positive relationships with other students.
Key Vocabulary
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Aerobic Activity
Heart
Blood Vessels
Respiratory System
Cardiorespiratory Endurance
CVD
Cardiac Death
Stroke
Peripheral Vascular Disease
Hypertension
• Emphysema
• Maximal Oxygen
Consumption/VO2 Max
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Slow-Twitch Muscle Fibers
Fast-Twitch Muscle Fibers
Anaerobic Activity
Anaerobic Fitness
Interval Training
Essential Question
• What are ways that I can improve my cardiorespiratory
endurance on a daily basis?
Lesson 1:
Your Heart, Lungs, and Circulation
• Aerobic activity: continuous activity that requires large
amounts of oxygen( aerobic means “with oxygen.”)
• Examples: rowing, step aerobics because these activities
strengthen the heart
Lesson 1:
Your Heart, Lungs, and Circulation
• Circulatory System: consists of the heart, blood, and blood vessels
• Heart: main organ of the circulatory system
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Right side of heart pumps blood to the lungs and the left side pumps oxygen-rich blood to rest
of body
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Hemoglobin: iron rich compound in the blood that helps carry the oxygen throughout the body
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Stroke Volume: amount of blood pumped per beat of the heart.
Lesson 1:
Your Heart, Lungs, and Circulation
• Circulatory System:
• Blood Vessels: blood is carried to and from the heart
• Arteries: vessels that carry blood from the heart to the major extremities (arms, legs,
and heart)
• Capillaries: smaller blood vessels, deliver oxygen and other nutrients to individual cells
• Veins: deliver the blood back to the heart
Lesson 1:
Your Heart, Lungs, and Circulation
• Respiratory System: body system that exchanges gases between
your body and the environment
• Diaphragm: muscle found between the chest cavity and
abdomen; when you inhale, the diaphragm contracts and moves
downward (chest cavity enlarges, allowing air into the lungs) and
when you exhale, the opposite motion occurs
Lesson 1:
Your Heart, Lungs, and Circulation
• Cardiorespiratory Endurance: ability of the body to work
continuously for extended periods of time
Lesson 2:
Problems and Care of Your Heart and Lungs
• Lifestyle Diseases: diseases that are the result of certain lifestyle
choices
• Examples: drinking alcohol, smoking, poor eating habits,
sedentary
Lesson 2:
Problems and Care of Your Heart and Lungs
• Cardiovascular Disease (CVD): medical disorder that affects the
heart or blood vessels
• CVD is the leading cause of death in the United States; taking
950,000 lives a year
• Atherosclerosis: condition in which a fatty deposit called plaque
builds up inside arteries, restricting or cutting off blood flow
Lesson 2:
Problems and Care of Your Heart and Lungs
• Stroke: blood flow to a person’s brain is interrupted or cut off
entirely by the blockage of an artery
• Peripheral Vascular Disease: a CVD that occurs mainly in the
legs, and less frequently in the arms
• Hypertension: risk factor in heart attack, stroke, and heart failure
• Emphysema: disease in which the small airways of the lungs lose
their normal elasticity, making them less efficient in helping to
move air in and out of the lungs
Lesson 2:
Problems and Care of Your Heart and Lungs
Changeable Risk Factors:
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Avoiding tobacco
Maintaining a healthy weight
Eating right
Having regular medical checkups
Lesson 3:
Influences on Cardiac-respiratory Endurance
• Maximal Oxygen Consumption (VO2 Max): largest amount of
oxygen your body is able to process during strenuous aerobic
exercise
• VO2 Max: measures the amount of oxygen in millimeters per
kilogram of body weight per minute
Lesson 3:
Influences on Cardiac-respiratory Endurance
Factors Affecting Cardiorespiratory Endurance:
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Age
Heredity
Gender
Body Composition
Level of Conditioning
Lesson 3:
Influences on Cardiac-respiratory Endurance
• Slow-twitch muscle fibers: muscle fibers that contract at a slow
rate, allowing for greater muscle endurance
• Fast-twitch muscle fiber: muscle fibers that contract rapidly,
allowing for greater muscle strength
Lesson 4:
Aerobic vs. Anaerobic Physical Activities
• Anaerobic Activity: activity that requires high levels of energy
and is done for only a few seconds or minutes at a high level of
intensity
• Anaerobic Fitness: higher levels of muscular strength, muscular
endurance, and flexibility
• Interval Training: programs in which high-intensity physical
activities alternate with low-intensity recovery bouts for several
minutes at a time