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1.2.2. Lesson 3 - long term effects part 1

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1.2.2. Lesson 3 - long term effects part 1

  1. 1. GCSE PE Unit 1.2.2 Regular exercise and the effect of lifestyle on the CV system
  2. 2. There are 4 main physiological effects on the body when we exercise (as well as a by product that is produced) .You have 1 minute to discuss what these are with your partner…….. 3. Sweating 1. Breathing 2. Body temp 4. Muscles ache 5. Build up of Lactic Acid
  3. 3. <ul><li>By the end of this lesson you should be able to: </li></ul><ul><li>Explain the effects that regular long term involvement with exercise has on your body </li></ul><ul><li>Understand and explain the negative effect that lifestyle has on the CV system </li></ul><ul><li>Know what you need to revise for the end of unit test </li></ul>
  4. 4. <ul><li>Immediate? </li></ul><ul><li>Long-term? </li></ul><ul><li>Task 4 page 7 </li></ul>
  5. 5. <ul><li>The resting heart rate decreases </li></ul><ul><li>The heart gets bigger in size </li></ul><ul><li>Your recovery rate improves </li></ul><ul><li>Stoke Volume increases </li></ul><ul><li>Cardiac output increases </li></ul><ul><li>Decreased blood pressure </li></ul><ul><li>Healthy veins and arteries </li></ul>Regular or sustained participation in physical activity has many benefits for the long term:
  6. 6. <ul><li>With regular exercise the heart becomes bigger and stronger so it can supply the same amount of blood in fewer beats. </li></ul><ul><li>Therefore the heart of a person who is fitter beats fewer times, this in turn is more efficient and results in less stress on the heart. </li></ul><ul><li>This also means that their resting heart rate is much lower due to the increased efficiency of the heart. </li></ul>
  7. 7. Muscles Your recovery rate is how quickly your body returns to normal following a period of exercise. Recovery rate is a good indicator of fitness. The quicker you recover, the fitter you are. As you recover from exercise, changes happen in the following areas: Heart rate Lactic acid levels in the blood Glycogen stores
  8. 8. <ul><li>Now we know what heart recovery rate means, let’s go and test it! </li></ul><ul><li>Task 5 on page 8 </li></ul>
  9. 9. <ul><li>“ the volume of blood pumped out of the heart by each ventricle during one contraction” </li></ul><ul><li>In simple terms: </li></ul><ul><li>The amount of blood pumped out by the heart in one beat </li></ul>
  10. 10. <ul><li>So what happens??? </li></ul><ul><li>Heart becomes more efficient at rest and work </li></ul><ul><li>Stronger heart </li></ul>
  11. 11. <ul><li>“ the amount of blood ejected from the heart in one minute” </li></ul><ul><li>In simple terms: </li></ul><ul><li>The amount of blood pumped out of the heart in one minute </li></ul>cardiac output = stroke volume × heart rate
  12. 12. <ul><li>So what happens??? </li></ul><ul><li>Heart becomes more efficient at rest and work </li></ul><ul><li>Stronger heart </li></ul><ul><li>Task 6 Page 10 </li></ul>
  13. 13. Here are some examples: HR = 72 bpm SV = 70 ml CO = 72 x 70 = 5,040 ml HR = 200 bpm SV = 150ml CO = 200 x 150 = 30,000 ml At rest… Maximum Sub Maximum HR = 130 bpm SV = 100 ml CO = 130 x 100 = 13,000 ml Task 7 Page 11
  14. 14. <ul><li>Regular exercise reduces blood pressure. </li></ul>gg
  15. 15. <ul><li>Regular exercise reduces blood pressure. </li></ul>gg
  16. 16. THE EFFECT OF LIFESTYLE ON THE CV SYSTEM......
  17. 18. <ul><li>By the end of this lesson you should be able to: </li></ul><ul><li>Explain the effects that regular long term involvement with exercise has on your body </li></ul><ul><li>Understand and explain the negative effect that lifestyle has on the CV system </li></ul><ul><li>Know what you need to revise for the end of unit test </li></ul>
  18. 19. <ul><li>Complete the following: </li></ul><ul><li>Update any missed notes from today’s lesson. </li></ul><ul><li>Revise for an end of unit test next lesson. </li></ul>
  • MeghrajSisodiya

    Nov. 16, 2019
  • MikeMeers1

    Jun. 24, 2015

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