12 Questions
What is the definition of task failure?
Inability to perform the exercise or contraction anymore
During isometric contractions, what does fatigue result in?
Reduced force, reduced rate of force development (RFD), and reduced rate of force relaxation (RFR)
What happens to fatigue during concentric contractions?
Results in reduced force, reduced velocity, and reduced power
Which type of contraction is more likely to cause ultrastructural damage?
Eccentric contractions
What is the maximum amount of oxygen one can consume during physical activity or exercise?
VO2 max
In isometric contractions, what happens to the time it can be held as the percentage of MVC increases?
It decreases
What is the assessment test for anaerobic power that involves pedaling as hard as possible on a magnetic cycle ergometer for 30 seconds?
Wingate test
What is the relationship between oxygen consumption and exercise intensity in aerobic exercise?
They increase together in a stepwise pattern
What happens to the power in isokinetic contractions as the number of contractions increases?
Power decreases
What is the maximum percentage at which one can exercise above their VO2 max?
100%
What happens to the rate of fatigue in isometric contractions as the occlusion of blood flow at higher intensities of effort increases?
Rate of fatigue increases
What is the relationship between the percentage of 1 RM and the number of repetitions that can be performed in weightlifting?
The higher the % of 1 RM, the less repetitions can be performed
Test your knowledge of muscle fatigue and task failure with this quiz. Explore the causes and effects of fatigue on force generation and EMG signals during maximal contractions.
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