FRIEDREICH'S ATAXIA WITH KNEE-JERK SAND ANKLE CLONUS

Ankle clonus

Clonus is a series of involuntary, rhythmic, muscular contractions, and relaxations. It may be caused by interruption of the upper motor neuron fibers such as stroke, multiple sclerosis, or by metabolic alterations such as severe hepatic failure or serotonin syndrome. We present a video case of impressive left ankle clonus in a patient with old right middle cerebral artery stroke.

Dysarthria in Friedreichs Ataxia: A Perceptual Analysis

The aims of this study were to: (1) evaluate the perceptual speech dimensions, speech intelligibility and dys arthria severity of a group of individuals diagnosed with Friedreich’s ataxia (FRDA); (2) determine the presence of subgroups within FRDA dysarthria; (3) investigate the relationship between the speech outcome and the clinical factors of disease progression. The study included 38 indivi...

Exoskeleton Simulator of Impaired Ankle: Simulation of Spasticity and Clonus

We developed a prototype of an exoskeletal patient simulator that allows clinical trainees to experience and learn about ankle disorders related to hemiplegia. The exoskeleton exerts abnormal joint torques by tendon mechanisms while realizing complex ankle movements and realistic bone and skin features. Using this exoskeleton, we simulated the resistances of spasticity and clonus, which are typ...

Friedreich's Disease

Off(j. Civil Surgeon, Backer gunge. At a meeting 0f the Calcutta Medical Society held on the 11th of June, Dr. Cobb read a paper on Friedreich's Disease, or Hereditary Ataxia, which was reported in the Indian Medical Gazette for July. The patient, as is usual in such cases, was a child. The prominent symptoms present were considerable inco-ordination of the lower limbs; slight losa of sensation...

A study of the knee jerk.