Exploring sport online: Athletes and efficient hearts
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## Contents

- Introduction
- Learning outcomes
- 1 What to expect
- 2 A first look at the human body
  - 2.1 Introduction
  - 2.2 The body as a machine
  - 2.3 The body's different systems
  - 2.4 The body's different components
  - 2.5 What's this got to do with sport?
  - 2.6 Making notes
  - 2.7 A few final comments
- 3 The heart, blood and the lungs
- 4 Athletes and efficient hearts
  - 4.1 Introduction
  - 4.2 A resting heart rate
  - 4.3 Measuring your heart rate
  - 4.4 Maximum heart rate
- 5 The heart and blood
  - 5.1 Introduction
  - 5.2 Two halves of one pumping system
  - 5.3 Blood vessels: veins, arteries and capillaries
  - 5.4 Finding your own arteries and veins
  - 5.5 What is blood?
  - 5.6 A few final thoughts
- 6 Athletes, oxygen and the lungs
  - 6.1 Introduction
  - 6.2 The body, the lungs and oxygen
  - 6.3 The role of oxygen in sports performance
  - 6.4 Athletes and oxygen intake
  - 6.5 Training at high altitude
  - 6.6 A few final thoughts
- Keep on learning
- Acknowledgements

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