Muscle Fatigue and Task Failure Quiz
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Questions and Answers

What is the definition of task failure?

  • Inability to perform the exercise or contraction anymore (correct)
  • Decrease in force generating capacity
  • Complete muscle fatigue
  • Reduction in rate of force development
  • During isometric contractions, what does fatigue result in?

  • Reduced force, reduced rate of force development (RFD), and reduced rate of force relaxation (RFR) (correct)
  • Reduced force and reduced power
  • Increased force and increased rate of force development (RFD)
  • Reduced force, reduced velocity, and reduced power
  • What happens to fatigue during concentric contractions?

  • Results in increased force and reduced power
  • Results in reduced force and increased velocity
  • Results in reduced force, reduced velocity, and reduced power (correct)
  • Results in increased force and increased power
  • Which type of contraction is more likely to cause ultrastructural damage?

    <p>Eccentric contractions</p> Signup and view all the answers

    What is the maximum amount of oxygen one can consume during physical activity or exercise?

    <p>VO2 max</p> Signup and view all the answers

    In isometric contractions, what happens to the time it can be held as the percentage of MVC increases?

    <p>It decreases</p> Signup and view all the answers

    What is the assessment test for anaerobic power that involves pedaling as hard as possible on a magnetic cycle ergometer for 30 seconds?

    <p>Wingate test</p> Signup and view all the answers

    What is the relationship between oxygen consumption and exercise intensity in aerobic exercise?

    <p>They increase together in a stepwise pattern</p> Signup and view all the answers

    What happens to the power in isokinetic contractions as the number of contractions increases?

    <p>Power decreases</p> Signup and view all the answers

    What is the maximum percentage at which one can exercise above their VO2 max?

    <p>100%</p> Signup and view all the answers

    What happens to the rate of fatigue in isometric contractions as the occlusion of blood flow at higher intensities of effort increases?

    <p>Rate of fatigue increases</p> Signup and view all the answers

    What is the relationship between the percentage of 1 RM and the number of repetitions that can be performed in weightlifting?

    <p>The higher the % of 1 RM, the less repetitions can be performed</p> Signup and view all the answers

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