Component 1: Soc 19 Flashcards
What are the short term effects of exercise on your muscles?
- Muscle fatigue, muscles feeling weak, painful and tired occuring after anerobic respiration
- We produce lactic acid when theres no oxygen for reespiration (this is lactate accumilation)
- Cramps are severe muscle fatigue causing muscles to contract painfully
What are the short term effects of exercise on your heart?
- Increased heart rate, beating faster during physical activity
- Increased stroke volume, this leads to a stronger heart after frequent training and decreased heart rate
- Increased cardiac output, the higher your cardiacoutput, the better your physical performance
What are the short term effects of exercise on your respiratory system?
- When exercising, you need to bring in more oxygen and get rid of more carbon dioxide therefore making the depth and rate of breathing increase.
- You use up more oxygen than you take in which results in the body going into oxygen debt
What happens during and after physical activity for a fit person compared to a less fit person?
The fit person has a lower resting heart rate to start with than the unfit person. The fit person’s heart rate rises more slowly than the unfit persons - so the slope on their line is more gentle when they both start exercising. The fit person has a lower maximum heart rate than the unfit person - the highest point their line reaches on the graph. When they finish doing exercise, the fit person’s heart rate drops faster than the unfit persons. As they recover from their exercise, the fit persons heart gets back to resting heart rate faster than the unfit persons does - so their heart rate recovery time is shorter
What do interpreting graphs enable us to do in anylysing sport?
Graphs are important tools in training and sport. They enable us to
- look at particular aspects of what is happening as an athlete exercise
- Be able to make a quick visual comparison, between athletes or between sports
- Look in more detail at where changes or issues occur
