Lesson Challenge

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Lesson Challenge

• To understand theImmediate, and longer term
  effects of exercise.

Lets go
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Immediate Effects
The Heart

• The heart beats faster and stronger to supply
  more oxygen to the muscles.
• This is caused by adrenaline, a hormone released
  during exercise.

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STUFF!
Some athletes want to increase the immediate
effect of oxygen transport in the blood even more
by using a process called BLOOD DOPING. What is
blood doping? What sports does it occur in? Use
p77 to help you answer.
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Immediate Effects
Breathing

• Breathing becomes quicker and deepens.
• Increase in alveoli used in the lungs gives a
  greater capacity allowing more gaseous exchange
  to take place. OXYGEN In CO2
  Out

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Quick Fire Question

• If you sliced open your LUNGS, unfolded them and
  spread them as far as possible what area would
  they cover?

C. A badminton court
A. A dartboard
D. A tennis court
B. A snooker table
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Immediate Effects

• Body temperature- muscles generate heat which
  causes the body temperature to rise.
• Sweat- To cool down the body produces
  sweat.ENERGY is needed to make the sweat
  evaporate and this causes the temperature to fall.

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Immediate Effects

• Lactic acid- when your muscles demand more
  oxygen than can be supplied lactic acid builds up
  causing muscle fatigue.

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Long Term Effects of Regular Exercise

• With increasing fitness the following occur

1. The heart pumps more blood every beat.
v
After
Before
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• The recovery rate becomes
• quicker.

Before
160 140 100 60 0
Beats per minute
Recovery rate 5 mins
Time (mins)
After
160 140 100 60 0
Beats per minute
Recovery rate 2 mins
Time (mins)
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3. The number of capillaries in the muscles
increases.
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4. The resting pulse rate becomes lower.
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5. CV system becomes more efficient.
These are all some effects you can expect by the
end of your PEP if you work hard enough.
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To Recap...

• Long term
• Heart bigger, more blood pumped.
• Recover rate quicker
• Capillaries in muscle increase.
• Recovery rate lower.
• CV system more efficient

• Immediate
• Heart faster and stronger
• Breathing faster and deeper
• Increase in temperature
• Increase in sweat.
• Lactic acid produced muscle fatigue