GCSE PE- Stroke Volume Cardiac Output and Heart Rate

This video tutorial explores the concepts of heart rate, stroke volume, and cardiac output, explaining their definitions and how they are affected by fitness levels. It discusses the relationship between these measurements and exercise, highlighting the differences in heart efficiency between athletes and non-athletes. The video also provides exam preparation tips for students studying the cardiovascular system.

What is the definition of heart rate?

• The amount of blood ejected from the heart every beat

• The number of times the heart beats in one minute

• The strength of the heart's contraction

• The amount of blood ejected from the heart in one minute

How does fitness level affect resting heart rate?

• Fitness level does not affect resting heart rate

• Fitter individuals have a higher resting heart rate

• Fitter individuals have a lower resting heart rate

• Resting heart rate is the same for everyone

What is cardiac output?

• The amount of blood ejected from the heart every beat

• The number of times the heart beats in one minute

• The amount of blood ejected from the heart in one minute

• The strength of the heart's contraction

How is cardiac output calculated?

• Stroke volume minus heart rate

• Heart rate plus stroke volume

• Stroke volume times heart rate

• Heart rate divided by stroke volume

What is cardiac hypertrophy?

• A condition where the heart beats irregularly

• A temporary increase in heart rate during exercise

• An increase in heart size and strength due to exercise

• A decrease in heart size due to lack of exercise

Why do athletes have a higher maximal cardiac output?

• They have a higher resting heart rate

• They have a lower stroke volume

• They have a stronger heart and more beats to utilize

• They have a weaker heart

What advantage do athletes have over non-athletes in terms of heart function?

• They have a smaller heart

• They have a higher resting heart rate

• They have a lower capacity for exercise

• They have a stronger heart and greater capacity for exercise