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13 Cards in this Set
- Front
- Back
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Postural Control (static or dynamic)
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refers to the person's ability to maintain stability of the body and body segments in response to forces that threaten to disturb the body's structural equilibrium
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Static posture
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standing, lying, or sitting
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Dynamic posture
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include postures in which the body and/ or its segments are moving. I.e. walking, running, jumping, throwing, and lifting (more like balance)
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Factors that control and maintain body posture
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central nervous system (CNS), visual system, vestibular system, and musculoskeletal system (PNS)
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Proprioception
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Ability to determine one's joint position in space without looking at it
- usually lost with stroke victims |
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5 key bony landmarks of "Ideal" standing posture
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1. Mastoid Process
2. Bisects shoulder joint 3. Bisects the greater trochanter 4. Bisects knee, posterior to patella and dimple (just anterior to midline of knee) 5. Anterior to lateral malleolus about 1 " |
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Standard for the lower extremities from the anterior view which passes through these points:
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1. Anterior superior iliac spine
2. Knee (behind patella) 3. Ankle- anterior to lateral malleolus about an inch 4. Foot at the midline (2nd toe) |
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What's special about the 2nd toe (midline)
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no plantar interoosei. 2 dorsal interossi instead
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Number 1 and 2 postural deviations
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1. forward head
2. shoulders forward |
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If bisecting the body, with good posture, where does the line go through? Anteriorly/ posteriorly
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Anterior: Mental symphysis, Bisects sternum, bisects the symphysis pubis
Posterior: Occipital protuberance, bisects spinous process, bisects sacrum |
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Generally: the body's center of gravity
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around S1 and S2
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3 responses to perturbations to normal standing posture
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1. Ankle strategy
2. Hip strategy- throw body forward 3. Stepping pattern- take step |
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Why elderly more likely to fall?
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Stepping pattern takes longer because of signal delay...
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