Quiz 5-7

Question 0

Endurance training leads to increased maximal cardiac output through:

Answer 0

Increases in maximal end diastolic volume Reductions in maximal systolic volume Maintenance of maximal HR

Question 1

In L, what amount of the blood is RBC?

Answer 1

2.25 45% of blood is RBC, and blood volume is 70-80ml/ kg

Question 2

Stroke volume is calculated as…

Answer 2

End diastolic volume- End systolic volume

Question 3

During increasing intensities, SV increases until…

Answer 3

60% of peak aerobic power output, where it plateaus

Question 4

Heredity explains what % of increases in maximal aerobic power output?

Answer 4

25-50%

Question 5

The initial increase in heart rate at the start of exercise results from:

Answer 5

Withdrawal of parasympathetic restraint Increase in sympathetic stimulation of SV and AV nodes Increased concentrations of catecholamines