Mastering Posture and Balance
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Questions and Answers

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

  • COG cannot fall beyond the limit of stability (LOS) (correct)
  • COG does not affect balance
  • COG is located in the head
  • COG is higher in cats and dogs compared to humans

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

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

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

  • Your body will oscillate
  • You will stay upright
  • Your limbs will move to make the base bigger
  • You will fall (correct)

    • Which of the following senses is mainly involved in maintaining balance?

    <p>Somatosensation</p> Signup and view all the answers

    What do the three systems (visual, vestibular, somatosensation) do in the posture stabilization system?

    <p>Determine the ideal body position</p> Signup and view all the answers

    Which part of the brain is involved in selecting and adjusting muscle contractile patterns?

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

    Which muscles are involved in generating body movement?

    <p>Ankle, thigh, and trunk muscles</p> Signup and view all the answers

    What does computerized dynamic posturography test?

    <p>The functioning of the vestibular system</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 homeostatic mechanism in preventing the COG from moving out of the LOS?

    <p>To maintain stability</p> Signup and view all the answers

    Which system is the least important out of the three in maintaining balance?

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

    What happens to the pressure exerted on the surface if you are wobbly or move?

    <p>The pressure decreases</p> Signup and view all the answers

    Which condition(s) are successful in maintaining balance?

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

    What happens to the pressure exerted on the surface if you fall?

    <p>The pressure becomes zero</p> Signup and view all the answers

    Which strategy involves moving the hips and changing the angle of the hips?

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

    Which strategy involves invoking muscles of the lower feet to move the body?

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

    What are the two main patterns on how to maintain balance?

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

    What happens to the muscle activity during various maneuvers?

    <p>It is triggered very fast</p> Signup and view all the answers

    Which system is responsible for detecting pressure when the subject is on a surface?

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

    What can be controlled in the subject's visual system?

    <p>Open or close the subject's eye</p> Signup and view all the answers

    Which of the following strategies involves invoking muscles of the lower feet to move the body?

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

    What happens to the pressure exerted on the surface if you are wobbly or move?

    <p>The pressure decreases</p> Signup and view all the answers

    Which of the following senses is mainly involved in maintaining balance?

    <p>Somatosensation</p> Signup and view all the answers

    What happens to the pressure exerted on the surface if you fall?

    <p>The pressure becomes zero</p> Signup and view all the answers

    Which system is the least important out of the three in maintaining balance?

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

    Which of the following conditions are successful in maintaining balance?

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

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

    <p>The COG moves in the same direction as the body movement</p> Signup and view all the answers

    What are the two main patterns on how to maintain balance?

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

    Which system is responsible for detecting pressure when the subject is on a surface?

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

    What does computerized dynamic posturography test?

    <p>Balance and posture</p> Signup and view all the answers

    Which of the following is true about the limit of stability (LOS)?

    <p>The LOS forms a circle around the COG.</p> Signup and view all the answers

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

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

    Which system is most important for balance?

    <p>Visual system</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 system is responsible for detecting pressure when the subject is on a surface?

    <p>Somatosensation</p> Signup and view all the answers

    What do the three systems (visual, vestibular, somatosensation) do in the posture stabilization system?

    <p>They provide feedback to the brain.</p> Signup and view all the answers

    Which strategy involves moving the hips and changing the angle of the hips?

    <p>Changing the base of support</p> Signup and view all the answers

    What happens to the pressure exerted on the surface if you fall?

    <p>The pressure remains the same</p> Signup and view all the answers

    Which part of the brain is involved in selecting and adjusting muscle contractile patterns?

    <p>Both cortex and cerebellum</p> Signup and view all the answers

    What are the two main patterns on how to maintain balance?

    Signup and view all the answers

    Which strategy involves moving the hips and changing the angle of the hips?

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

    What is the purpose of the homeostatic mechanism in preventing the center of gravity (COG) from moving out of the limit of stability (LOS)?

    <p>To maintain balance</p> Signup and view all the answers

    What are the two main patterns on how to maintain balance?

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

    What does computerized dynamic posturography test?

    <p>Balance conditions</p> Signup and view all the answers

    Which muscles are involved in generating body movement?

    <p>Muscles of the upper body</p> Signup and view all the answers

    What happens to the pressure exerted on the surface if you are wobbly or move?

    <p>Pressure decreases</p> Signup and view all the answers

    Which of the following conditions are successful in maintaining balance?

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

    Which system is the least important out of the three in maintaining balance?

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

    What happens to the pressure exerted on the surface if you fall?

    <p>Pressure becomes zero</p> Signup and view all the answers

    Which system is responsible for detecting pressure when the subject is on a surface?

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

    Which of the following is the primary role of the center of gravity (COG) in maintaining balance?

    <p>To prevent the body from falling beyond the limit of stability (LOS)</p> Signup and view all the answers

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

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

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

    <p>The person will fall</p> Signup and view all the answers

    Which of the following senses is mainly involved in maintaining balance?

    <p>Somatosensation</p> Signup and view all the answers

    Which part of the brain is involved in selecting and adjusting muscle contractile patterns?

    <p>Both cortex and cerebellum</p> Signup and view all the answers

    What does computerized dynamic posturography test?

    <p>The movement of the center of gravity (COG)</p> Signup and view all the answers

    Which strategy involves moving the hips and changing the angle of the hips?

    <p>Expanding the base of support</p> Signup and view all the answers

    Which system is responsible for detecting pressure when the subject is on a surface?

    <p>Somatosensation</p> Signup and view all the answers

    What are the principal components of the posture stabilization system?

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

    What is the purpose of the homeostatic mechanism in preventing the COG from moving out of the limit of stability (LOS)?

    <p>To maintain balance</p> Signup and view all the answers

    Which system is the least important out of the three in maintaining balance?

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

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

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

    What are the two main patterns on how to maintain balance?

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

    What does computerized dynamic posturography test?

    <p>Muscle activity during various maneuvers</p> Signup and view all the answers

    What happens to the pressure exerted on the surface if you are wobbly or move?

    <p>The pressure decreases</p> Signup and view all the answers

    Which part of the brain is involved in selecting and adjusting muscle contractile patterns?

    <p>Motor cortex</p> Signup and view all the answers

    Which system is most important for balance?

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

    What happens to the muscle activity during various maneuvers?

    <p>Muscle activity is triggered very fast</p> Signup and view all the answers

    Which of the following is the primary role of the center of gravity (COG) in maintaining balance?

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

    Which of the following senses is mainly involved in maintaining balance?

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

    What is the purpose of the homeostatic mechanism in preventing the COG from moving out of the limit of stability (LOS)?

    <p>To maintain balance and prevent falling</p> Signup and view all the answers

    Which system is the least important out of the three in maintaining balance?

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

    What are the principal components of the posture stabilization system?

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

    Which strategy involves moving the hips and changing the angle of the hips?

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

    Which part of the brain is involved in selecting and adjusting muscle contractile patterns?

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

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