Next Page Testing Strength Test for drift by having the patient hold the arms stretched in front with the palms to the ceiling. Observe for pronation and downward or upward drift. Test strength in individual muscle groups as indicated by the patient's problem. For screening, test both proximal and distal groups. Distal muscles should include wrist extensors finger spreaders including the first dorsal interosseous thumb opposition ankle dorsiflexion .
Finger tapping is a sensitive test for upper motor neuron dysfunction.
EDB atrophy is an early motor finding in polyneuropathy.