Spasticity and Rigidity

Submitted by Nishanth_koda on Fri, 20/08/2010 - 23:57
in

Think: "Seat belt = Spasticity!"

 

  • Car's seat belt holds back when we pull it out fast and rolls out smooth when we pull it gently. Spasticity being velocity dependent, presents like a seat belt, i.e, the resistance to motion is higher when we try to move the limb faster.
  • Rigidity, on the other hand is "uniform resistance to motion" and is not velocity dependent.
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image'Cog-wheel' rigidity is 'lead pipe' rigidity interrupted by tremors.

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