Injury of the central nervous (CNS) including the brain and spinal cord can lead to certain characteristic findings, noted as ‘upper motor neuron’ (UMN) signs. Three tests and their associated findings are demonstrated in this series of videos. - Test 1️⃣: Clonus = Positive for UMN involvement (involuntary beating into ankle plantarflexion). I am performing this test on a woman who had recently suffered a cerebral vascular accident (CVA) or stroke.
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