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 Aerobic Activity Emphysema Heart Maximal Oxygen Consumption/VO2 Max Blood Vessels Slow-Twitch Muscle Fibers Respiratory System Fast-Twitch Muscle Fibers Cardiorespiratory Endurance Anaerobic Activity CVD Anaerobic Fitness Cardiac Death Interval Training Stroke Peripheral Vascular Disease Hypertension

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 Right side of heart pumps blood to the lungs and the left side pumps oxygen-rich blood to rest of body Hemoglobin: iron rich compound in the blood that helps carry the oxygen throughout the body 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: 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: 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