Soc 19 Short Term Effect

Question 1

Muscle fatigue

Answer 1

when muscles get tired.

Question 2

Lactate accumulation

Answer 2

when lactic acid gather in the muscles/ blood due to increased work intensity

Question 3

Heart rate

Answer 3

a number of times the heart beats per minute

Question 4

BPM

Answer 4

Beats per minute

Question 5

Stroke volume

Answer 5

the amount of blood pumped by the heart during each beat.

Question 6

Cardiac output

Answer 6

the amount of blood ejected from your heart in one minute. CO = stroke volume (SV) x heart rate (HR)
Oxygen deb

Question 7

Oxygen debt:

Answer 7

The amount of oxygen needed at the end of physical activity to break down any lactic acid.

Question 8

Effects on the muscles

Answer 8

muscle fatigue, lactic accumulation & cramp.

Question 9

Effects on the heart

Answer 9

increased HR, stroke volume and cardiac output

Question 10

Effects on the respiratory system

Answer 10

increased need for oxygen/ removal of CO2.
Increased rate and depth of breathing

Question 11

Athletes who are ‘fitter’ will have a

Answer 11

lower RHR and quicker recovery rate.

Question 12

When you exercise hard, you use up more oxygen than you take in. This
shortfall creates

Answer 12

Oxygen debt