Question 17N.3.HL.TZ0.23

benefits:

a. improved performance/endurance at lower oxygen levels

    OR

    improved performance/endurance when returning at low altitude

b. due to higher concentration erythrocytes/red blood cells/hemoglobin

c. more oxygen transported/circulating «due to increase in hemoglobin/RBC number»

d. improved metabolic/lung efficiency/gas exchange

e. increase in myoglobin/number of capillaries/mitochondria

risks:

f. altitude sickness/stroke/lower immunity

g. increased muscle tissue breakdown

h. effects are not immediate/not permanent/extended training at high altitude required

i. may be unfair to competitors who cannot train at high altitude

[Max 6 Marks]