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Section: ArticlesTitle: Geometrical conditions for ballistic and visually controlled movements / Khai-Chung Gan and Errol R. HoffmannAuthor: Gan, Khai-ChungNotes: Sumario: The ballistic movement is defined as a rapid voluntary movement which is motor programmed and in which visual feedback for path correction is not possible. A discrete ballistic movement is of short movement duration with a triphasic pattern in the elctromyograph (EMG) for muscle activity and has an acceleration pattern which approximates a sinusoidal wave form. The aim of the present work was to fully explore the geometrical factors which determine whether a movement will be made ballistically or under visual controlRelated records: En: Ergonomics. - London [etc.]. - Vol. 31, nº 5, May 1988 ; p. 829-839Materia / lugar / evento: ErgonomíaMTMPruebas visualesModelos matemáticosElectromiografíaLey de FittsCongresosOtros autores: Hoffmann, Errol R. International Ergonomics Association (1988: Sydney) Secondary titles: Título: Ergonomics Other categories: 875Rights: In Copyright (InC)