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Abasia (from Greek: a-, without and basis, step) is the inability to walk owing to impairment in motor coordination.

The term covers a spectrum of medical disorders such as:

  • choreic abasia: caused by chorea of the legs
  • paralytic abasia: caused by paralysis of the leg muscles
  • spastic abasia: caused by spastic stiffening of the leg muscles
  • trembling abasia: caused by trembling of the legs

Abasia is frequently accompanied by astasis, an inability to stand, see Astasia-abasia.

See also[edit]


  • Reber, A., & Reber, E. (2001). The Penguin dictionary of psychology (3rd ed.). London: Penguin Books.
  • Ropper, A.H. & Samuels, M.A. (2009). Adams and Victor’s Principles of Neurology (9th edition). New York, NY: McGraw-Hill Medical.
  • Harrison's principles of internal medicine - 16th Ed. (2005). Part two - Cardinal Manifestations and Presentation of Diseases Section 3 - Nervous System Dysfunction
  • Olney, Richard K. Weakness, disorders of movement, and imbalance