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Questions and Answers
What is the concept of central fatigue related to?
What is the concept of central fatigue related to?
- Reduction of motor unit activation (correct)
- Excitation-contraction coupling failure
- Neuromuscular junction 'failure'
- Effect of metabolites on crossbridge function
What does peripheral fatigue affect?
What does peripheral fatigue affect?
- CB function
- Muscle fiber (Sarcolemma, SR, CBs) (correct)
- Brain and Spinal cord
- Motoneurons (Signal transduction)
What is the effect of fatigue on force-velocity and power-velocity relationships?
What is the effect of fatigue on force-velocity and power-velocity relationships?
- Reduced ISOmax
- Reduced Vmax (correct)
- Reduced number of cross-bridges
- Reduced rate of cross-bridge cycling
Which part of the body is associated with central fatigue?
Which part of the body is associated with central fatigue?
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What is the concept of peripheral fatigue related to?
What is the concept of peripheral fatigue related to?
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Study Notes
Types of Fatigue
- Central fatigue is related to the central nervous system (CNS), involving the brain and spinal cord.
- Peripheral fatigue affects the peripheral nervous system (PNS), involving the muscles and nerves outside the CNS.
Effects of Fatigue
- Fatigue affects the force-velocity and power-velocity relationships, altering the body's ability to produce force and velocity.
Central Fatigue
- The brain is the part of the body associated with central fatigue.
Peripheral Fatigue
- Peripheral fatigue is related to the muscles and peripheral nervous system, affecting muscle function and neural transmission.
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