Mastering Posture and Balance
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Questions and Answers

Which system is the least important for balance?

  • Cortex
  • Vestibular system (correct)
  • Visual system
  • Somatosensation

    • What is the center of gravity (COG) in humans?

  • In the feet
  • In the lower abdomen (correct)
  • In the head
  • In the chest

    • What happens if the COG falls beyond the limit of stability (LOS)?

  • You will move your limbs
  • You will oscillate
  • You will stay upright
  • You will fall (correct)

    • Which systems give feedback to the brain to determine the best body position for balance?

    <p>Visual system and somatosensation</p> Signup and view all the answers

    What do the principal components of the posture stabilization system detect?

    <p>Environmental interaction</p> Signup and view all the answers

    Which systems are mainly responsible for detecting environmental interaction?

    <p>Visual system</p> Signup and view all the answers

    What determines the movement of ankle, thigh, and trunk muscles?

    <p>Cortex and cerebellum</p> Signup and view all the answers

    What is computerized dynamic posturography used for?

    <p>Testing the 3 systems for balance</p> Signup and view all the answers

    Which system is most important for balance?

    <p>Visual system</p> Signup and view all the answers

    What is the purpose of the powerful homeostatic mechanism mentioned in the text?

    <p>To prevent COG from moving out of the LOS</p> Signup and view all the answers

    Which of the following is NOT a way to control the subject's visual system?

    <p>Detect the pressure on the surface</p> Signup and view all the answers

    What does a pressure of 0 indicate in the context of maintaining balance?

    <p>The subject has fallen</p> Signup and view all the answers

    Which conditions are most successful in maintaining balance according to the results?

    <p>Conditions 1, 2, 3, and 4</p> Signup and view all the answers

    What happens when there is bilateral damage to the vestibular system?

    <p>Balance is maintained as long as vision or somatosensory system from feet is preserved</p> Signup and view all the answers

    Which graph shows a maintained posture with only the vestibular system intact?

    <p>Graph 1</p> Signup and view all the answers

    What triggers muscle activity very fast in maintaining balance?

    <p>The ankle strategy</p> Signup and view all the answers

    When is the ankle strategy used in maintaining balance?

    <p>When there is enough surface for support</p> Signup and view all the answers

    When is the hip strategy used in maintaining balance?

    <p>When there is not enough surface for support</p> Signup and view all the answers

    Which of the following is NOT a characteristic of the ankle strategy?

    <p>Involves moving the hips</p> Signup and view all the answers

    Which strategy is used when there is not enough surface for support in maintaining balance?

    <p>The hip strategy</p> Signup and view all the answers

    Which strategy is used when there is enough surface for support in maintaining balance?

    <p>Ankle strategy</p> Signup and view all the answers

    What does a pressure of 0 indicate in the context of maintaining balance?

    <p>The subject is falling</p> Signup and view all the answers

    When is the hip strategy used in maintaining balance?

    <p>When there is not enough surface for support</p> Signup and view all the answers

    Which systems are mainly responsible for detecting environmental interaction?

    <p>Vestibular and somatosensory systems</p> Signup and view all the answers

    What triggers muscle activity very fast in maintaining balance?

    <p>The ankle strategy</p> Signup and view all the answers

    When is the ankle strategy used in maintaining balance?

    <p>When there is enough surface for support</p> Signup and view all the answers

    What happens if the center of gravity (COG) falls beyond the limit of stability (LOS)?

    <p>The subject falls</p> Signup and view all the answers

    Which system is the least important for balance?

    <p>Vestibular system</p> Signup and view all the answers

    Which conditions are most successful in maintaining balance according to the results?

    <p>Conditions 1, 2, 3, and 4</p> Signup and view all the answers

    Which system is most important for balance?

    <p>Somatosensory system</p> Signup and view all the answers

    Which of the following is true about the center of gravity (COG) in humans?

    <p>It is located in the lower abdomen.</p> Signup and view all the answers

    What happens if the center of gravity (COG) falls beyond the limit of stability (LOS)?

    <p>You will fall.</p> Signup and view all the answers

    Which of the following systems is the least important for balance?

    <p>Vestibular system</p> Signup and view all the answers

    What do the principal components of the posture stabilization system detect?

    <p>Environmental interaction</p> Signup and view all the answers

    Which systems give feedback to the brain to determine the best body position for balance?

    <p>Visual system, vestibular system, and somatosensation</p> Signup and view all the answers

    When is the ankle strategy used in maintaining balance?

    <p>When there is not enough surface for support</p> Signup and view all the answers

    What is computerized dynamic posturography used for?

    <p>To test the three systems responsible for balance</p> Signup and view all the answers

    Which of the following is NOT a characteristic of the ankle strategy?

    <p>It is used when there is bilateral damage to the vestibular system.</p> Signup and view all the answers

    What is the purpose of the powerful homeostatic mechanism mentioned in the text?

    <p>To prevent the COG from moving out of the LOS</p> Signup and view all the answers

    Which of the following is NOT a way to control the subject's visual system?

    <p>Adjusting the subject's body posture</p> Signup and view all the answers

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