Circulatory System and Exercise Physiology

What is the stroke volume for a runner with an EDV of 175 mL and an ESV of 105 mL?

• 70 mL

• 80 mL

• 60 mL

• 100 mL

A swimmer’s EDV is 145 mL and ESV is 90 mL. What is the stroke volume?

• 55 mL

• 65 mL

• 75 mL

• 45 mL

A soccer player has SV = 120 mL and HR = 130 bpm. What is the cardiac output?

• 15.6 L/min

• 14.5 L/min

• 16.2 L/min

• 13.8 L/min

A cyclist has SV = 105 mL and HR = 110 bpm. What is the cardiac output?

• 11.55 L/min

• 12.55 L/min

• 10.75 L/min

• 13.25 L/min

Two swimmers are tested: Swimmer A has SV = 95 mL and HR = 155 bpm, while Swimmer B has SV = 89 mL and HR = 162 bpm. Who has the higher cardiac output, and by how much? (Round your final answer to 2 decimals.)

• Swimmer A by 0.31 L/min

• Swimmer B by 0.31 L/min

• Swimmer A by 0.42 L/min

• Swimmer B by 0.42 L/min

What is the formula for calculating cardiac output?

• Q = SV × HR ÷ 1000

• Q = SV × HR × 1000

• Q = SV × HR

• Q = SV ÷ HR × 1000

What is the unit of measurement for cardiac output?

• L/min

• mL/min

• bpm

• mL/s

If a cyclist has SV = 115 mL and HR = 125 bpm, what is the cardiac output?

• 14.38 L/min

• 15.38 L/min

• 13.38 L/min

• 16.38 L/min

What is the difference between EDV and ESV?

• EDV is the volume of blood in the heart before contraction, while ESV is the volume after contraction

• EDV is the volume of blood after contraction, while ESV is the volume before contraction

• EDV is the heart rate, while ESV is the stroke volume

• EDV is the cardiac output, while ESV is the heart rate

A runner’s relative VO₂ max is 72 mL/kg/min, and their body mass is 68 kg. What is their absolute VO₂ max?

• 4.896 L/min

• 5.032 L/min

• 4.5 L/min

• 5.2 L/min