, without and basis
, step) is the inability to walk due to impaired muscle 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.