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Modified Hoehn and Yahr Staging Scale (H&Y)
Summary
What it measures:
The Hoehn and Yahr Scale, a widely recognized clinical tool that describes broad categories of motor dysfunction in Parkinson disease (PD), is typically administered by neurologists or movement disorder specialists. While physical therapists and other allied health professionals might use the scale to inform their treatment planning and communicate with a multidisciplinary team, they usually rely on the diagnosis and staging provided by the physician.
Target Population:
People with Parkinson disease (PD)
Clinical Insights
This categorical scale primarily focuses on motor symptoms, including postural instability and activity limitation, while leaving nonmotor symptoms of PD unassessed. For this reason, the scale is used to provide demographical information and can help to define inclusion and exclusion criteria in research, but has largely been replaced by the Unified Parkinson's Disease Rating Scale as an outcome measure of treatment efficiency.1
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Date: September 11, 2023
Contact: practice@apta.org
Content Type: Test & Measure
Revision author: Matthew Leedom, PT, DPT, Board-Certified Clinical Specialist in Neurologic Physical Therapy
Revision reviewer: Kelly Danks, PT, DPT, Board-Certified Clinical Specialist in Geriatric Physical Therapy
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