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1.2.2 Lesson 2 - physiological effects
1. GCSE PE Unit 1.2.2 The Cardiovascular System Physiological effects and regular exercise
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4. 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
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15. Lactic acid is produced during …. Lactic acid is a …. When too much ….
16. Lactic acid is produced during anaerobic respiration. This happens when there is not enough oxygen for normal aerobic respiration to take place. Lactic acid is a mild toxin. It is responsible for the pain you feel in your muscles when they get tired. When too much of it builds up in a muscle, it can prevent the muscle contracting. At this point, the performer’s muscles will cramp and they will be forced to stop.
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20. 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
![[object Object],[object Object],[object Object],[object Object],1. Blood, Blood Vessels and the Heart 2. Increased heart rate and blood pressure 3. Arteries, Capillaries and Veins](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)