1. GCSE Physical Education Immediate & Long-Term Effects of Exercise on the Respiratory System

2. Learning Objectives By the end of this lesson pupils should:
The immediate effects of participation in
exercise
The long-term effects of regular
participation in exercise
The effects of smoking on the respiratory
system

3. The Respiratory System

4. The Respiratory System
When exercising several changes
take place in the body
These are immediate and short
term benefits of exercise and
physical activity

5. Breathing

6. Breathing Breathing is greatly affected by exercise
However quickly the heart beats, it cannot
carry enough oxygen if not enough is
reaching the lungs
How well we breath depends on how much
oxygen can be removed from the air. We
need our alveoli to do this
Alveoli can be damaged, for example by
smoking

7. Oxygen Debt

8. Oxygen Debt The amount of extra oxygen required by the
muscles during recovery from strenuous
physical activity
Strenuous exercise may result in the need
for more oxygen than can be supplied
through breathing
After anaerobic exercise, oxygen debt
occurs and deep gasping breaths are taken
to repay the oxygen used

9. Oxygen Debt These deep gasping breaths enable as
much oxygen as possible to be taken into
the respiratory system
As well as this, waste produce is eliminated,
mainly in the form of carbon dioxide
An efficient respiratory system aids the
cardiovascular system by providing a
constant supply of oxygen

10. Benefits of Regular Exercise

11. Benefits of Regular Exercise
After a sustained period of regular exercise, benefits include:
Quicker delivery of oxygen to working
muscles
Carbon dioxide is removed quicker
Vital capacity is increased as the whole
respiratory system becomes more
efficient

12. Benefits of Regular Exercise
More alveoli become available for
gaseous exchange after regular exercise
Meaning more oxygen can be absorb by
the capillaries and more carbon dioxide
taken from them
As a result VO2 max (aerobic capacity) is
increased
Regular exercise also increases the
number of blood vessels

13. Effects of Smoking

14. Effects of Smoking Smoking damages the lungs and
especially the alveoli, making them less
stretchy and less efficient
As a result, it becomes more difficult to get
oxygen in and carbon dioxide out, and
smokers may become short of breath
the heart has to work harder to get the
oxygen the body needs and consequently
gets tired quicker

15. Learning Objectives (Revisited)
By the end of this lesson pupils should:
The immediate effects of participation in
exercise
The long-term effects of regular
participation in exercise
The effects of smoking on the respiratory
system

16. Any questions, please do not hesitate to ask
Thank you
Any questions, please do not hesitate to ask