Practice Quiz

ACSM Personal Trainer

Category - Initial Client Consultation and Assessment

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What type of muscle is more resistant to fatigue and benefits more from longer contractions to produce stabilization?
  1. Type I
  2. Type II
  3. Type IIa
  4. Type IIb
Explanation
Answer: A - Type I muscles are more resistant to fatigue and use longer contractions to yield postural stabilization and control. Type II, IIa, and IIb are more apt to become fatigued quickly through use, and are therefore responsible for shorter term contractions that produce more powerful movements, such as sprinting.
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