Soc 19: The Short Term Effects Of Exercise And Graphs

Question 1

What parts of the human body do the short term effects of physical exercise have an impact on ?

Answer 1

The muscles
The heart
The respiratory system

Question 2

What are the effects on the muscles ?

Answer 2

Muscle fatigue (painful and tired muscles)
Lactic accumulation
Cramp as a result of muscle fatigue

Question 3

What are the effects on the heart ?

Answer 3

• Increased heart rate
• Increased blood flow pumped from the heart
• Increased cardiac output (blood pumped per minute)
• Increased stroke volume (blood pumped per beat)

Question 4

What are the effects on the breathing ?

Answer 4

• Increased breathing rate
• Increased breathing depth
• Increased oxygen debt (oxygen needed to remove the lactate accumulation)
• Increased removal of carbon dioxide (CO2)

Question 5

What are the differences between the graph that shows a fit person exercising in comparison to an unfit person with the x axis as: (Time) and the y axis as: (Heart rate) ?

Answer 5

• The fit person has a lower RHR to start with.
• The fit persons heart rate rises slower than than the unfit persons- the they have a lower gradient shown on the graph at the beginning.
• The fit persons has a lower MHR than the unfit persons.
• When they finish exercising the fit persons heart rate drops faster than the unfit persons and the fit persons heart rate recovers quicker shown by an increased negative gradient.