Orthostatic tremor; writing tremor

Pearls Orthostatic tremor

--low amplitude high frequency tremor of legs

-- can'tstand but can walk

-- can auscultate legs

-- have to suspect in history

-- Original described by Ken Heilman in Arch Neurol

Writing tremor "hand shakes only when I write"

-- no tremor otherwise; task specific movement disorder

-- akin to dystonia

-- other tasks could be brushing teeth or shaving