CanFitPro Personal Training Specialist Practice Test

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What triggers the activation of Golgi tendon organs (GTO)?

  1. Muscle relaxation

  2. Increased tension on a muscle and tendon

  3. Decreased muscle fiber length

  4. A decrease in neural impulses

The correct answer is: Increased tension on a muscle and tendon

When a muscle is under increased tension, Golgi tendon organs (GTO) are activated. These specialized sensory receptors are located in tendons and are sensitive to changes in muscle tension. When this tension increases, the GTO sends signals to the spinal cord, which then triggers a reflexive response to relax the muscle in order to prevent damage. Muscle relaxation (A), decreased muscle fiber length (C), and a decrease in neural impulses (D) do not directly trigger the activation of GTOs. Additionally, these options do not accurately describe the function of GTOs in response to muscle tension. Therefore, they are incorrect choices.

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