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BTEC Level 2 Sport Unit 4 – The Sports Performer In Action

BTEC Level 2 Sport Unit 4 – The Sports Performer In Action. Aerobic and Anaerobic Energy Systems D Nicholls. Objectives. To identify what we mean by the aerobic and the anaerobic energy systems. To consider specific sports that use each system. IMPORTANT.

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BTEC Level 2 Sport Unit 4 – The Sports Performer In Action

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  1. BTEC Level 2 SportUnit 4 – The Sports Performer In Action Aerobic and Anaerobic Energy Systems D Nicholls

  2. Objectives • To identify what we mean by the aerobic and the anaerobic energy systems. • To consider specific sports that use each system.

  3. IMPORTANT • All tasks on this PPT should be completed on your website unless otherwise stated. • Make sure you put appropriate information on appropriate pages as and where required – this means you may have to create more pages!

  4. Task 1: Key Terms • First off – some definitions! You need to demonstrate an understanding of the following terms: • Alactic Acid • Glycolysis • Lactic Acid • Creatine Phosphate

  5. Task 2: What is meant by… • Next up – following on from our first task, EXPLAIN what is meant by: • The Aerobic Energy System • The Anaerobic Energy System Remember – Explain means IN YOUR OWN WORDS!

  6. Aerobic Vs Anaerobic

  7. Task 3: The Energy Systems in Action • So – now that we’ve explained what we mean by each of the key terms, you now need to find out when we use these energy systems. • Task: • Using YouTube, find 2 videos that demonstrate the Aerobic Energy System being used in a sport, and 2 videos that demonstrate the Anaerobic Energy System being used. • Embed the videos onto your website. • For each video, explain WHY they are using that energy system.

  8. So…Anaerobic…ATP-CP • What this means is: • Reliance on stored adenosine triphosphate (ATP) (the molecule that produces the energy in all living things), energy supplied by ATP (up to four seconds) • Another stored molecule, creatine phosphate (CP) helps restore ATP • CP is restored aerobically (with oxygen) • Energy is supplied by ATP and CP (four to 20 seconds) • When this system runs out of ATP-PC stores, glycolysis takes place.

  9. Anaerobic…Glycolysis/Lactic Acid • ATP is made from glucose stored in the liver and muscles • Energy is supplied by ATP, CP and muscle glycogen (20 to 45 seconds) • Energy is supplied by muscle glycogen (45 to 240 seconds) • Waste product is lactic acid • When this system is unable to maintain energy requirements, the aerobic system starts to produce energy • Sports that use this system to provide energy are moderate to high intensity, i.e. short bursts of exercise lasting a few minutes, e.g. running 400 m, 800 m, and 1500 m distances.

  10. So…if we summarise… • The anaerobic energy system relies on stored adenosine triphosphate (ATP) which is responsible for producing energy. • Creatine Phosphate (CP) helps restore ATP. • CP is restored AEROBICALLY • The energy you use in the first 4-20 seconds is supplied through these – Glycolysis occurs when this energy is used up. • ATP is made from glucose stored in both the liver and muscles, so the energy supplied by ATP, CP and muscle glycogen is responsible for 20-45 seconds, then the muscle glycogen for 45 – 240 seconds. • As a result, a waste product; Lactic Acid; is produced. • When the body reaches the limit of the above – we shift over to Aerobic Energy.

  11. Task 4: Anaerobic Energy • You need to explain what we’ve just looked at IN YOUR OWN WORDS. • This means you should explain it as if you were giving a talk to a class, or explaining it to a friend who doesn’t understand it. • You can use diagrams to back up your information as and where required.

  12. Aerobic Energy • For example during longer periods of exercise/activity; sustained energy relies on this system. • Sports that mainly use this system to provide energy used for sustained activity are long-distance events such as marathon running, long-distance swimming, long-distance cycling. • Energy supplied by muscle glycogen and fatty acids (240 to 600 seconds) • Uses oxygen as a means of making energy (re-synthesising ATP) • Low to moderate intensity (beyond 90 seconds).

  13. So what does this mean? • Simply put – the following: • Aerobic exercise, is submaximal exercise which gets your heart rate and breathing rate up, over a sustained period. For example, jogging, swimming, cycling. Aerobic exercise is excellent for the health of your heart and lungs.

  14. Task 5: Aerobic Exercise • Explain what we mean by what we have just looked at – making sure you are clear about WHY we call it aerobic exercise and WHAT happens.

  15. Long term Adaptations to Aerobic Exercise • Make sure you note these down! • Makes more red blood cells so more Oxygen can be transported in the blood • Your arteries become wider and more elastic so that your blood pressure falls • Your heart grows bigger (hypertrophies) and the walls become thicker so it can pump more blood with each beat. This means it doesn't have to beat so fast! • More capillaries grow within your muscles so that more O2 can get there quicker • Your heart rate returns to normal more quickly following exercise • More capillaries also grow around the alveoli in your lungs so more O2 is taken into the blood and more CO2 is released • Your diaphragm and intercostal muscles become stronger so they can make your chest cavity bigger meaning you can breathe in more air with each breathe

  16. Task 6: Adaptations • Explain how the body adapts to aerobic exercise over a long period of time, making sure you are specific and clear in your explanation.

  17. Task 7: A hand out. • Your next task is to create a hand out that can be given to students who are investigating the energy systems and how they work. • You should consult the help PPT on DJN’s website and summarise slides 1-10 in a hand out form. • Make sure you include and EXPLAIN the graphs included. • Make sure the information is in YOUR OWN WORDS. • Make sure you use appropriate illustrations.

  18. Task 8: Comparison • Now that you’ve found out all of the key information – you need to draw some comparisons between the sports that use the different energy systems. • To do this, you should complete the following: • DESCRIBE how the body uses the different energy systems – be VERY CLEAR! • Compare how the different energy systems are used in sports with different demands: • What is similar? • What is different? • Why is this? • Make sure you use specific examples!

  19. Task 9: 2 Athletes • Now then – you need to chose 2 athletes: • 1 from a sport that uses the Aerobic Energy System • 1 from a sport that uses the Anaerobic Energy System • You should conduct some research into them, so research: • Their training methods • The demands of their sport • A bit of history about their achievements • Why their sport is Aerobic or Anaerobic • You should make sure you embed video of them in action with your work by way of further evidence.

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