HR and exercise

Question 1

What happens to an individuals HR when the start exercising?

Answer 1

• HR increases.
• The higher the intensity the higher the HR.

Question 2

Why will a trained performer be able to exercise for longer?

Answer 2

• A trained performer will be able to exercise for longer at a higher intensity because they have a greater heart rate range.

Question 3

HR graphs

Answer 3

Look at anaerobic and aerobic HR graphs!!!

Question 4

HR graphs- A

Answer 4

Anticipatory rise:
- Due to the release of adrenaline, due to arousal levels rising.

Question 5

HR graphs- B

Answer 5

Sharp rise:
- Due to the body working anaerobically.

Question 6

HR graphs- C

Answer 6

Heart rate continues to rise:
- The body does not reach steady state as the body continues to work anaerobically.

• ONLY IN THE ANAEROBIC GRAPH!!

Question 7

HR graphs- D

Answer 7

Steady state:
- O2 supply meets O2 demand, performer works aerobically.

Question 8

HR graphs- E

Answer 8

Rapid decline:
- Exercise stops.

Question 9

HR graphs- F

Answer 9

Recovery:
- HR remains slightly elevated to remove waste products such as lactic acid.

Question 10

Stroke volume during exercise…

Answer 10

• We know that SV increases when an individual starts exercising.
• SV however, unlike HR, only continues to increase up until 40-60% of maximum effort.
• This is because the heart is beating too fast, therefore there is not enough time for the ventricles to fill.