WK 13: Endurance Exercise
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Questions and Answers

What are some of the modifiable cardiovascular parameters that can limit aerobic performance?

  • Availability of caffeine
  • Bone density
  • Blood O2 carrying capacity (correct)
  • Muscle fiber type

Why was the Scottish Athlete unable to continue with about 2 km left in the marathon?

  • Severe fatigue due to physiological factors (correct)
  • He lost his way on the race course
  • Equipment failure
  • Encountered an injury from a fall

What plays a significant role in setting limits to aerobic performance?

  • Genetic factors alone
  • Psychological factors
  • Combination of several factors (correct)
  • Environmental factors only

How can an athlete potentially prevent severe fatigue during a marathon?

<p>Maintain adequate hydration and nutrition (D)</p> Signup and view all the answers

Which factor could potentially change dramatically with different characteristics of exercise, subject, or environment?

<p>Role of blood flow distribution (C)</p> Signup and view all the answers

Which of the following is NOT a modifiable cardiovascular parameter that can influence aerobic performance?

<p>Heart rate variability (A)</p> Signup and view all the answers

What is a possible contributor to the severe fatigue experienced by the Scottish athlete during the marathon?

<p>All of the above (D)</p> Signup and view all the answers

Which of the following environmental factors would most likely affect fatigue during a marathon?

<p>All of the above (D)</p> Signup and view all the answers

What is a key physiological factor influencing fatigue during endurance exercise?

<p>Depletion of energy stores (D)</p> Signup and view all the answers

Fatigue during endurance exercise is often characterized by decreased power output and

<p>decreased muscle force production (D)</p> Signup and view all the answers

Which type of fatigue is most relevant to the Scottish athlete's experience during the marathon?

<p>Peripheral fatigue (D)</p> Signup and view all the answers

The factors contributing to fatigue during an 800m track race and a weightlifting competition would

<p>be different (B)</p> Signup and view all the answers

What is the primary source of fatigue in anaerobic exercise?

<p>Hydrogen ions (H+) (B)</p> Signup and view all the answers

What is the result of tissue oedema in muscle?

<p>Reduced force output (B)</p> Signup and view all the answers

Which of the following is a bioenergetic factor that can affect exercise performance?

<p>Electrolyte balance (A)</p> Signup and view all the answers

What is the primary factor in the accumulation of metabolites during sprint activities?

<p>Hydrogen ion (H+) accumulation (D)</p> Signup and view all the answers

Which of the following can help prevent or alleviate fatigue?

<p>Proper hydration (B)</p> Signup and view all the answers

What is the primary cause of acute muscle soreness?

<p>Irritation of nerve endings (D)</p> Signup and view all the answers

What physiological factor primarily limits VO2 max during exercise with large muscle groups and normoxia?

<p>Cardiovascular factors (B)</p> Signup and view all the answers

What biochemical entity is responsible for impairing muscle performance when anaerobic metabolites accumulate?

<p>Hydrogen ions (H+) (B)</p> Signup and view all the answers

At what point does anaerobic energy production yield power during exercise?

<p>For a limited period of time (A)</p> Signup and view all the answers

In endurance exercise, what factor is primarily affected when reaching VO2 max limits?

<p>Cardiovascular capacity (B)</p> Signup and view all the answers

What significantly contributes to enhancing VO2 max during exercise involving large muscle groups?

<p>Reduction in lung resistance (A)</p> Signup and view all the answers

What is NOT considered a primary limiting factor for VO2 max in normoxic conditions?

<p>Lung resistance (C)</p> Signup and view all the answers

What are the possible factors involved in limiting Aerobic Exercise Performance?

<p>Cardiorespiratory fitness and muscle fatigue (A)</p> Signup and view all the answers

How can acute muscle soreness be differentiated from fatigue?

<p>Fatigue can occur during exercise, while muscle soreness is felt post-exercise (C)</p> Signup and view all the answers

What is the relationship between the GAS theory and fatigue?

<p>GAS theory is linked to adaptation and maladaptation in performance, which can lead to fatigue (D)</p> Signup and view all the answers

Where can fatigue originate in exercise?

<p>At various loci within the body, including neural, metabolic, and biomechanical systems (D)</p> Signup and view all the answers

What could be a possible remedy to prevent unwanted fatigue in exercise?

<p>Proper warm-up and cooldown routines (B)</p> Signup and view all the answers

How do different environmental factors, such as cold weather and altitude, affect fatigue during endurance exercise?

<p>They can increase fatigue by imposing additional stress on the body's systems (A)</p> Signup and view all the answers

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