Abasia refers to lack of motor coordination in walking The term abasia literally means that the base of gait (the lateral distance between the two feet) is inconstant or unmeasurable. The term ‘astasia’ means inability to stand and ‘abasia’ refers to the inability to walk properly Patients of this disorder are, however, able to move their legs naturally while walking or lying down. This condition has also been documented in frontal lobe injuries. Astasis is a lack of motor coordination marked by an inability to stand, walk or even sit without assistance due to disruption of muscle coordination
The term astasia is interchangeable with astasis and is most commonly referred to as astasia in the literature describing it. Astasia refers to the inability to maintain upright posture during standing, despite having full motor strength Impairment of the vestibulocerebellar pathway, graviceptive system, and cingulate motor area have been proposed to be related to astasia.
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