Short Term Effects Of Exercise

Question 1

lactate accumulation

Answer 1

lactic acid is made in the muscle when there is not enough oxygen to fuel the activity

Question 2

muscle fatigue

Answer 2

muscles stop contracting because glycogen stores are depleted so they don’t have the energy to carry on

Question 3

what happens to the heart rate during sport

Answer 3

heart rate increases during sport to pump more oxygen and nutrients to the working muscles as energy

Question 4

define stroke volume

Answer 4

the amount of blood ejected from the heart every beat

Question 5

define cardiac output

Answer 5

the amount of blood ejected from the heart each minute

Question 6

why does stroke volume and cardiac output increase during physical activity

Answer 6

to increase the amount of blood carrying oxygen and nutrients to the working muscles as energy.

Question 7

why does breathing rate and breathing depth increase during physical activity

Answer 7

to take in as much oxygen as possible to get to the working muscles as an energy source