Effects of Strength Training on the Heart
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Questions and Answers

What is the purpose of instructing a patient to take several deep, long breaths before standing after bed rest?

  • To increase cardiac output
  • To increase heart rate
  • To increase blood pressure
  • To prevent orthostatic hypotension (correct)

    • What is the benefit of endurance training on the heart?

  • It leads to beneficial cardiac hypertrophy (correct)
  • It leads to cardiac atrophy
  • It results in decreased cardiac output
  • It has no effect on the heart

    • Why are trained athletes typically bradycardic at rest?

  • Because of the Frank-Starling law (correct)
  • Because of decreased cardiac output
  • Because of increased cardiac output
  • Because of increased heart rate

    • What is a result of regular strength training on the heart?

    <p>Cardiac muscle hypertrophy</p> Signup and view all the answers

    What is the result of endurance training on heart size?

    <p>It increases heart size</p> Signup and view all the answers

    Why do athletes typically have low resting heart rates?

    <p>Because of increased stroke volume</p> Signup and view all the answers

    What is the name of the law that explains how the heart adapts to changes in blood volume?

    <p>The Frank-Starling law</p> Signup and view all the answers

    What is the effect of strength training on cardiac output during exercise?

    <p>It increases cardiac output dramatically</p> Signup and view all the answers

    What is the relationship between stroke volume and heart rate in determining cardiac output?

    <p>Cardiac output is the product of stroke volume and heart rate</p> Signup and view all the answers

    What is the goal of regulating cardiac output?

    <p>To maintain adequate blood flow to tissues</p> Signup and view all the answers

    What is a benefit of increased cardiac output during exercise?

    <p>Rapid perfusion of tissue during exercise</p> Signup and view all the answers

    What is the result of increased stroke volume in athletes?

    <p>Decreased heart rate at rest</p> Signup and view all the answers

    What is the primary reason for an increase in myocardial oxygen consumption (MVO2)?

    <p>Increased cardiac effort</p> Signup and view all the answers

    What is the result of pathological cardiac hypertrophy on the heart?

    <p>Increased afterload</p> Signup and view all the answers

    How does the heart increase oxygen delivery to cardiac cells during strenuous exercise?

    <p>By increasing laminar flow rate</p> Signup and view all the answers

    What is a consequence of atherosclerosis on blood vessels?

    <p>Increased arterial wall friction</p> Signup and view all the answers

    What is an advantage of the slow velocity of blood along the vessel walls?

    <p>It allows for more diffusion time</p> Signup and view all the answers

    What happens to blood flow when it increases in velocity through smooth blood vessels?

    <p>It moves fast along the center and slowly along the walls</p> Signup and view all the answers

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