Increased Vital Capacity
Vital Capacity increase in response to physical training, to provide an increased and more efficient supply of oxygen to working muscles. During strenuous exercise, oxygen diffusion may increase by as much as threefold above the resting level.with thecardiovascualrar system the respiratory system undergoes specific adaptations in response to a systematic training programme which help to maximise its efficiency. The muscles demand more oxygen and the corresponding increase in carbon dioxide production stimulates faster and deeper breathing. |
Increase in minute ventilation
Minute ventilation doends on breathing rate and total volume. During exercise adults can generally achieve approximately 15 times resting values
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Increased strength of respiratory muscles
The diaphragm and intercostal muscles increase in strength, allowing for greater expansion of the chest cavity
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Increase in oxygen diffusion rate
An increase in diffusion rates in tissues favours oxygen moevment from the capillaries to the tissues, and carbon dioxide from the cells to the blood. With regular training these rates increase, allowing oxygen and carbon dioxide to diffuse more rapidly.
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