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Quantitative Tremor Analysis In Welders: Comparison With Idiopathic Parkinson's Disease And Essential Tremor, Juan Sanchez-Ramos, Dacy Reimer, Theresa A. Zesiewicz, Kelly L. Sullivan, Paul A. Nausieda
Quantitative Tremor Analysis In Welders: Comparison With Idiopathic Parkinson's Disease And Essential Tremor, Juan Sanchez-Ramos, Dacy Reimer, Theresa A. Zesiewicz, Kelly L. Sullivan, Paul A. Nausieda
Kelly L. Sullivan
Background: Workers chronically exposed to manganese in welding fumes may develop an extra-pyramidal syndrome with postural and action tremors.
Objectives: To determine the utility of tremor analysis in distinguishing tremors among workers exposed to welding fumes, patients with Idiopathic Parkinson’s Disease (IPD) and Essential Tremor (ET).
Methods: Retrospective study of recorded tremor in subjects from academic Movement Disorders Clinics and Welders. Quantitative tremor analysis was performed and associated with clinical status.
Results: Postural tremor intensity was increased in Welders and ET and was associated with visibly greater amplitude of tremor with arms extended. Mean center frequencies (Cf) of welders and …