30 Questions
What are some of the modifiable cardiovascular parameters that can limit aerobic performance?
Blood O2 carrying capacity
Why was the Scottish Athlete unable to continue with about 2 km left in the marathon?
Severe fatigue due to physiological factors
What plays a significant role in setting limits to aerobic performance?
Combination of several factors
How can an athlete potentially prevent severe fatigue during a marathon?
Maintain adequate hydration and nutrition
Which factor could potentially change dramatically with different characteristics of exercise, subject, or environment?
Role of blood flow distribution
Which of the following is NOT a modifiable cardiovascular parameter that can influence aerobic performance?
Heart rate variability
What is a possible contributor to the severe fatigue experienced by the Scottish athlete during the marathon?
All of the above
Which of the following environmental factors would most likely affect fatigue during a marathon?
All of the above
What is a key physiological factor influencing fatigue during endurance exercise?
Depletion of energy stores
Fatigue during endurance exercise is often characterized by decreased power output and
decreased muscle force production
Which type of fatigue is most relevant to the Scottish athlete's experience during the marathon?
Peripheral fatigue
The factors contributing to fatigue during an 800m track race and a weightlifting competition would
be different
What is the primary source of fatigue in anaerobic exercise?
Hydrogen ions (H+)
What is the result of tissue oedema in muscle?
Reduced force output
Which of the following is a bioenergetic factor that can affect exercise performance?
Electrolyte balance
What is the primary factor in the accumulation of metabolites during sprint activities?
Hydrogen ion (H+) accumulation
Which of the following can help prevent or alleviate fatigue?
Proper hydration
What is the primary cause of acute muscle soreness?
Irritation of nerve endings
What physiological factor primarily limits VO2 max during exercise with large muscle groups and normoxia?
Cardiovascular factors
What biochemical entity is responsible for impairing muscle performance when anaerobic metabolites accumulate?
Hydrogen ions (H+)
At what point does anaerobic energy production yield power during exercise?
For a limited period of time
In endurance exercise, what factor is primarily affected when reaching VO2 max limits?
Cardiovascular capacity
What significantly contributes to enhancing VO2 max during exercise involving large muscle groups?
Reduction in lung resistance
What is NOT considered a primary limiting factor for VO2 max in normoxic conditions?
Lung resistance
What are the possible factors involved in limiting Aerobic Exercise Performance?
Cardiorespiratory fitness and muscle fatigue
How can acute muscle soreness be differentiated from fatigue?
Fatigue can occur during exercise, while muscle soreness is felt post-exercise
What is the relationship between the GAS theory and fatigue?
GAS theory is linked to adaptation and maladaptation in performance, which can lead to fatigue
Where can fatigue originate in exercise?
At various loci within the body, including neural, metabolic, and biomechanical systems
What could be a possible remedy to prevent unwanted fatigue in exercise?
Proper warm-up and cooldown routines
How do different environmental factors, such as cold weather and altitude, affect fatigue during endurance exercise?
They can increase fatigue by imposing additional stress on the body's systems
Explore the significance of factors like cardiovascular, pulmonary, muscle, and mitochondrial functions in aerobic exercise. Learn how anaerobic metabolites can affect muscle performance and understand the importance of VO2max in endurance activities like marathons.
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