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J Sports Med Phys Fitness. 1991 Dec;31(4):627-8.

Judo as a possible cause of anoxic brain damage. A case report.

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Sub-Department of Clinical Psychology, University of Liverpool, England.


The rules of judo provide for strangulation techniques in which the blood supply to the brain is blocked by pressure on the carotid arteries; such techniques produce anoxia and possible unconsciousness if the victim fails to submit. A case is presented of a patient with signs of anoxic brain damage, with psychometric investigation showing memory disturbance consistent with a left temporal lobe lesion. This patient had been frequently strangled during his career as a judo player; it is suggested that such frequent strangulation was the cause of the damage. Such an observation indicates the need for caution in the use of such techniques.

[Indexed for MEDLINE]

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