Hoover sign is used to differentiate between the organic and functional weakness of pyramidal origin. In this video the Hoover's Test was done on a stroke patient and a suspected stroke patient with nonspecific hemiparesis. In normal people and in patients with an organic hemiparesis you will feel downward pressure under the opposite heel. If you feel nothing it suggests a functional weakness, i.e. that effort is not being transmitted to either leg.
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