Fast complex arm movements in Parkinson's disease

A. Berardelli, N. Accornero, M. Argenta, G. Meco, M. Manfredi

Research output: Contribution to journalArticle


Fast arm movements involving the shoulder and elbow joints have been analysed in normal controls and in patients with Parkinson's disease. The subjects were requested to draw on a graphic tablet triangles and squares of different size and shape. The patients produced a larger number of EMG bursts compared with controls. The movements were accurate, and each segment of the geometric figures was performed with a roughly straight trajectory, but the time necessary to trace the geometric figures and the pauses at the vertices were prolonged. We conclude that in Parkinson's disease the disability in generating two joint ballistic movements depends on a difficulty in running motor programmes for complex trajectories.

Original languageEnglish
Pages (from-to)1146-1149
Number of pages4
JournalJournal of Neurology, Neurosurgery and Psychiatry
Issue number10
Publication statusPublished - 1986

ASJC Scopus subject areas

  • Public Health, Environmental and Occupational Health
  • Neuropsychology and Physiological Psychology
  • Neuroscience(all)
  • Psychiatry and Mental health

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