Practice Quiz

Group Fitness Instructor

Category - Variety

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Which of the following is the LEAST valid rationale to perform a 10 minute warm-up section at the beginning of each class? To produce:
  1. An increase in the rate of oxygen exchanged between muscles and blood
  2. A promotion of generalized relaxation and stress relief
  3. An increase in blood flow to active muscles
  4. An increase in muscle elasticity
Explanation
Answer: B - Although exercise - in particular, exercise which promotes an elevated heart rate - can aid in relaxation and stress relief, neither is a chief aim of the warm-up element. The warm-up phase is designed to prepare the body for more vigorous exercise by increasing blood and oxygen flow, elevating body temperature, and increasing the viscoelasticity of muscles.
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