hypsokinesis

hypsokinesis

 [hip″so-kĭ-ne´sis]
a backward swaying or falling in erect posture, seen in parkinson's disease and other neurologic disorders.

hypsokinesis

(hĭp″sō-kĭ-nē′sĭs) [″ + kinesis, movement]
A tendency to fall backward when standing or walking; seen in neurodegenerative disorders such as Parkinson's disease.