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OCR Level 3Cambridge Technicals
in Sport
Unit 3:
Principles of Anatomy and Physiology in Sport
Your heartYour heart
Beats at a steady rate and ensures your blood moves around your body, but what happens when you exercise?
During exerciseDuring exerciseYour heart beats faster
Your lungs provide more oxygen to your muscles.
Your energy systems ensure you have enough energy to exercise. You’ve produced lactic acid which can cause a burning sensation in your muscles, you’ve lost essential water, you’ve become breathless.
Level 1/2
Energy systemsEnergy systems
When exercising, the body fuels itself using:
carbohydrates
fats
proteins
After you exerciseAfter you exerciseYou must ‘cool down’ properly
Your heart rate returns to normal
The amount of oxygen needed in your muscles reduces
The lactic acid goes from your muscles
You need to replenish the water you have lost.
What will you learn?What will you learn?
• The structure and function of the skeletal system
• The structure and function of the muscular system
• The structure and function of the cardiovascular system and energy systems
• The structure and function of the respiratory system
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