Long-term Effects of Exercise Quiz

What is the primary physiological change in the heart due to aerobic training?

• Reduced oxygen demand

• Decreased stroke volume

• Thicker cardiac muscle

• Increased heart rate

How does cardiac hypertrophy benefit trained athletes?

• It decreases blood pressure

• It reduces muscle fatigue

• It allows more oxygen delivery per beat

• It increases heart rate

What is bradycardia?

• An increased heart rate during exercise

• A condition of low blood sugar

• A condition of high blood pressure

• A resting heart rate below 60 beats per minute

Why is high-intensity interval training effective for building lactic acid tolerance?

• It decreases heart rate

• It reduces the need for oxygen

• It exposes muscles to lactic acid frequently

• It increases muscle mass

What was a key focus for Usain Bolt when transitioning to longer sprints?

• Improving his diet

• Building lactic acid tolerance

• Reducing his training time

• Increasing his running speed