title: Single-Joint Movements in Parkinson's Disease: A Pulse-Width and Pulse-Height Theory Review.
abstract: The process by which the brain controls single-joint movements (SJM) is still not well understood. Some studies have defined rules describing the duration and magnitude of the agonist and antagonist muscles. Therefore, the purpose of this study was to analyze scientific publications about the electromyographic characteristics of SJM performed by patients with Parkinson's disease. A bibliographical review of the years 1989-2015 was performed using keywords such as electromyography, upper limb, and Parkinson's disease. After applying the inclusion criteria, 8 articles were included for analysis. The literature indicates that despite the lack of studies, it is possible to assume that considering the SJM, those with Parkinson's disease only control the magnitude of electromyography activation, being consistent only with the pulse-height theory control.
authors: a Physical Education , Laboratory of Biomechanics and Motor Control, Federal University of Triangulo Mineiro , Uberaba , Brazil.
authors: Rafael de Almeida
authors: RA
authors: Oliveira
authors: b Department of Applied Physiotherapy , Laboratory of Biomechanics and Motor Control, Federal University of Triangulo Mineiro , Uberaba , Brazil.
authors: Luciane Aparecida Pascucci
authors: LAP
authors: Sande de Souza
mesh_terms: D001696:Biomechanical Phenomena / Q000502:physiology*; D004576:Electromyography; D006801:Humans; D007596:Joints / Q000503:physiopathology*; D009068:Movement / Q000502:physiology*; D018482:Muscle, Skeletal / Q000503:physiopathology*; D010300:Parkinson Disease / Q000503:physiopathology*; D034941:Upper Extremity / Q000503:physiopathology*
keywords: Parkinson's disease; electromyography; kinematics; motor control