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In The Journal, Aug. 29, 1908, appeared an article by Dr. C. F. Hoover, Cleveland, with the above title. The sign is based on the following facts: If a normal individual, lying on a couch, in the dorsal position with legs extended, lifts one foot, the heel of the other foot always digs into the couch. This complemental opposition, as Hoover terms it, is felt by placing the hand under the tendo Achilles. In case of paralysis of one leg, due to a pathologic lesion, if the patient attempt to lift the paralyzed foot, there is the same complemental opposition and the heel of the sound side digs into the couch. If the patient lifts the sound foot the complemental opposition of the paralyzed limb will depend on its strength; there will be no movement whatever if that limb be completely paralyzed. Just the opposite takes place in case the
ZENNER P. A NEW SIGN FOR THE DETECTION OF MALINGERING AND FUNCTIONAL PARESIS OF THE LOWER EXTREMITIES.. JAMA. 1908;LI(16):1309-1310. doi:10.1001/jama.1908.25410160019001e