Kinematic construction of the trajectory of sequential arm movements

Takesi Okadome, Masaaki Honda

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

A kinematic construction rule determining the trajectory of human sequential movements is formulated using minimum-jerk and minimum-angular-jerk trajectories. The kinematic construction rule states that the observed trajectory of sequential movements coincides with a weighted average of the minimum-jerk trajectory and the segmented minimum-angular-jerk trajectory. This rule covers not only point-to-point movements but also simple sequential movements. Five kinds of experiments that measure the trajectories in planar, multijoint sequential arm movements were conducted. The measured trajectories coincide with the predictions made on the basis of the kinematic construction rule presented here. Moreover, predictions of previous models such as the minimum-jerk, the equilibrium-trajectory, and the minimum-torque-change models are shown to be incompatible with our observations of sequential movements.

Original languageEnglish
Pages (from-to)157-169
Number of pages13
JournalBiological Cybernetics
Volume80
Issue number3
DOIs
Publication statusPublished - 1999 Jan 1

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ASJC Scopus subject areas

  • Biotechnology
  • Computer Science(all)

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