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Cogwheel rigidity

Stiffness in the muscles, with a jerky quality when arms and legs are repeatedly moved.

The following references are relevant:-

Lance et al(1963) Action tremor and the cogwheel phenomenon in Parkinson’s disease[1]

Findley et al (1981) Tremor, the cogwheel phenomenon and clonus in Parkinson’s disease [2]

Ghiglione et al(2005) Cogwheel Rigidity [3]

Further Research

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References

  1. Lance, James W.; Schwab, Paul S. and Peterson, Elizabeth R. (1963) Full Text Brain 86 (1) 85 – 110 Action tremor and the cogwheel phenomenon in Parkinson’s disease http://brain.oxfordjournals.org/content/86/1/95.extract
  2. Findley, L.J.; Gresty, M.A. and Halmagy, G.M.(1981) Full TextJ. Neurol. Neurosurg. Psychiatry. 1981 44 (6) 534 –5 46. Tremor, the cogwheel phenomenon and clonus in Parkinson's disease.http://www.ncbi.nlm.nih.gov/pmc/articles/PMC491035/
  3. Ghiglione, Paolo, Mutani, Roberto and Chio, Adriano (2005) Full Text Jama 62 (5) http://archneur.jamanetwork.com/article.aspx?articleid=788358
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