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When you start to exercise there are several immediate responses that you will
Increase in breathing rate
Increase in depth of breathing
The benefits of these changes are that there is an increased removal of carbon
dioxide and the amount of oxygen taken into the lungs in each breath is
Breathed in (%) Breathed out (%)
Oxygen - 21 Oxygen - 16
Carbon Dioxide ­ 0.03 Carbon Dioxide - 4…read more

Slide 3

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The adaptations you need to know from regular participation in exercise are:
Increased number of alveoli
Increased strength of intercostal muscles
Increased strength of diaphragm
Increased lung volume
(Basically everything is increased)
The benefits of these adaptations are as follows:
Your respiratory system is stronger
You can take in more air and extract oxygen more effectively
Therefore you can provide more oxygen for transport to the working muscles…read more

Slide 4

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Oxygen Debt ­ This is the extra amount of oxygen required after anaerobic
respiration, compared with the amount normally needed when at rest.
Lung Volumes
Total lung capacity ­ the total volume of air in your lungs after your biggest
breath in
Tidal volume ­ during normal breathing, the total amount breathed in and out in
one cycle
Vital capacity ­ the maximum you can forcibly breathe in and out
Effects of Smoking on the Respiratory system
Smoking causes a reduction in oxygen uptake by the red blood cells, the will carry
carbon monoxide from the cigarette smoke in preference to oxygen.…read more


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