Topic 1.4 Short term and long term effects of exercise Flashcards
1
Q
List short term effects of exercise
A
- heart rate
- stroke volume
- cardiac output
- respiratory rate
- tidal volume
- minute ventilation
- muscle temperature
- oxygen to working muscles
- lactic aid production
2
Q
Why does heart rate increase during exercise
A
more oxygen is required at working muscles
more carbon dioxide needs to be removed
3
Q
Why does lactic acid build up during exercise
A
Due to an excess of amount of carbon dioxide, which leads to fatigue
Oxygen not available to break down the lactic acid
Therefore oxygen debt
4
Q
Why does stroke volume increase during exercise
A
More blood comes back to heart, therefore more oxygenated blood at the working muscles
5
Q
Why does cardiac output increase during exercise
A
Oxygenated blood will come to our muscles more efficiently
6
Q
Why does depth of breathing and rate of breathe increase during exercise
A
So more oxygen can reach your working muscles in one go
7
Q
Name long term effects of exercise
A
- able to train harder for longer
- increased bone density
- muscle hypertrophy
- decreased resting heart rate
- increased cardiac output
- cardiac hypertrophy
- drop in resting blood pressure
- increased strength of diaphragm and intercostal muscles
