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Fall prevention
Postural control strategies
| Question | Answer |
|---|---|
| Name 3 postural control strategies | ankle strategy, hip strategy, step strategy |
| requires adequate ROM and strength at the ankle | ankle strategy |
| requires a firm broad surface below the feet | ankle strategy |
| requires an adequate amount of sensation in the ankles and feet | ankle strategy |
| requires adequate hip ROM and strength | hip strategy |
| requires adequate LE strength, power and ROM | step strategy |
| requires central processing speed | step strategy |
| requires the ability to move the limb quickly and accurately during the step initiation process | step strategy |
| the maximum amount that our COM can move before we need to change BOS | limit of stability |
| COM | center of mass |
| BOS | base of support |
| What are the 3 balance systems? | vision, vestibular, somatosensory |
| Somatosensory changes related to aging | *2-10 fold increase in the vibration threshold--reduces the ability to feel the surface beneath the feet *decreased ability to sense joint and muscle movement |
| Vestibular changes with age | *decreased sensitivity to head movements/increased sway *decreased ability to stabilize vision with head movement *effects magnified when somatosensory or vision is also impaired |