A PWR! Moves specialist is assessing a client with PD who exhibits micrographia and small, shuffling steps. These symptoms are best explained by which underlying motor impairment?
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A
Cerebellar ataxia causing dysmetria
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B
Impaired scaling of movement amplitude due to basal ganglia dysfunction
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C
Upper motor neuron lesion causing spasticity
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D
Peripheral neuropathy reducing sensory feedback