CanFitPro Personal Training Specialist Practice Test

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Ace your CanFitPro Personal Training Specialist exam with our comprehensive quiz. Test your knowledge, identify areas for improvement, and pave the way for a successful fitness career. Start your journey to becoming a certified personal trainer today!

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What does the sliding filament theory describe?

  1. Compression of the lumbar spine

  2. Enclosure of muscle fiber contents

  3. Muscle contraction through filament sliding

  4. Connective tissue around fascicles

The correct answer is: Muscle contraction through filament sliding

The sliding filament theory is a well-established explanation for how skeletal muscle contraction occurs. It describes the process by which muscle fibers actively slide past each other, causing muscle contractions and movement. Option A is incorrect because it refers to a different physiological concept related to the spine. Option B is incorrect because it does not accurately describe the process of muscle contraction. Option D is incorrect because it references connective tissue, which is not directly involved in the sliding filament theory of muscle contraction.