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Chapter 3 Fahey/Insel/Roth, Fit & Well: Core Concepts and Labs in Physical Fitness and Wellness, Chapter 3 © McGraw-Hill Higher Education.

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Presentation on theme: "Chapter 3 Fahey/Insel/Roth, Fit & Well: Core Concepts and Labs in Physical Fitness and Wellness, Chapter 3 © McGraw-Hill Higher Education."— Presentation transcript:

1 Chapter 3 Fahey/Insel/Roth, Fit & Well: Core Concepts and Labs in Physical Fitness and Wellness, Chapter 3 © McGraw-Hill Higher Education

2 Cardio-respiratory System

3 Circulation in the Heart

4 The system! Words to know!  Blood vessels  Arteries = vessels that carry blood away from the heart  Veins = vessels that carry blood to the heart  Capillaries = very small blood vessels that distribute blood to all parts of the body  Lungs  Alveoli = tiny air sacs in the lungs through whose walls gases such as oxygen and carbon dioxide diffuse in and out of the blood Fahey/Insel/Roth, Fit & Well: Core Concepts and Labs in Physical Fitness and Wellness, Chapter 3 © McGraw-Hill Higher Education

5 Acting out!  In groups of 4/5  Set up your group so you can act out the way your blood runs through your body.  Note the different steps in book on page 59  I must see the difference between O2 blood and CO2 blood  Follow the blood: heart > lungs > rest of body Fahey/Insel/Roth, Fit & Well: Core Concepts and Labs in Physical Fitness and Wellness, Chapter 3 © McGraw-Hill Higher Education

6 Cardiorespiratory System  The heart  Right side pumps blood in the pulmonary circulation (to the lungs)  Left side pumps blood in the systemic circulation (to the rest of the body)  Blood pressure (120/80)  Systole—contraction of the heart  Diastole—relaxation of the heart Fahey/Insel/Roth, Fit & Well: Core Concepts and Labs in Physical Fitness and Wellness, Chapter 3 © McGraw-Hill Higher Education

7 Cardiorespiratory System AT REST  Heart rate: 50–90 beats/minute  Breathing rate: 12–20 breaths/minute  Blood pressure: 110/70  Cardiac output: 5 quarts/minute  Blood distributed to muscles: 15–20% DURING EXERCISE  Heart rate: 170–210 beats/minute  Breathing rate: 40–60 breaths/minute  Blood pressure: 175/65  Cardiac output: 20 quarts/minute  Blood distributed to muscles: 85–90% Fahey/Insel/Roth, Fit & Well: Core Concepts and Labs in Physical Fitness and Wellness, Chapter 3 © McGraw-Hill Higher Education

8 Monitoring Your Heart Rate  Carotid artery in the neck  Radial artery in the wrist Fahey/Insel/Roth, Fit & Well: Core Concepts and Labs in Physical Fitness and Wellness, Chapter 3 © McGraw-Hill Higher Education

9 Calculate your resting heart rate and training zone! Resting Heart Rate  Count beats for 10 seconds and multiply the result by 6 to get rate in beats per minute ____ beats x 6 = ____bpm Fahey/Insel/Roth, Fit & Well: Core Concepts and Labs in Physical Fitness and Wellness, Chapter 3 © McGraw-Hill Higher Education Maximum HR: 220 – (age) = _____ HR zone: 65 %: Max x.65 = ___ bpm 90 %: Max x.9 = ___ bpm Target: from ___ to ____

10 Energy Production  Metabolism—the sum of all chemical processes necessary to maintain the body  Energy from food  Carbs, fats and protein  Broken down into glucose  Stored as glycogen  ATP (adenosine triphosphate): The energy “currency” of cells Fahey/Insel/Roth, Fit & Well: Core Concepts and Labs in Physical Fitness and Wellness, Chapter 3 © McGraw-Hill Higher Education

11 Three Energy Systems

12

13 Benefits of Cardio-respiratory Endurance Exercise  Improved cardio-respiratory function  Improved cellular metabolism  Reduced risk of chronic disease: (Cardiovascular disease, Cancer, Type 2 diabetes, Osteoporosis, Deaths from all causes)  Better control of body fat  Improved immune function  Improved psychological and emotional well- being

14 Effects of Cardiorespiratory Endurance

15 Assessing Fitness  Next class!  Tests:  1 mile walk (CR)  Curl-up/push-up (ME)  Sit and reach (F)  Body composition  Leg Press Fahey/Insel/Roth, Fit & Well: Core Concepts and Labs in Physical Fitness and Wellness, Chapter 3 © McGraw-Hill Higher Education


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