A function description for the human upper limb pointing movements performance

N.F. Yang, D.W. Jin, Ming Zhang, C.H. Huang, R.C. Wang

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

9 Citations (Scopus)


The human motor system is mechanically complex and need to be described by using a large number of degrees of freedom. The controlled operation of such a system requires a reduction of mechanical redundancy. The coordination and synergies among the muscles and joints can be used for the reduction. In this paper, synergy is discussed through the analysis and comparison of human upper-limb pointing movements. All movements were recorded by a Vicon 3D motion analysis system. The synergy in the pointing movement of upper-limb was found among the different joint angles. A function method is used to describe the pointing performance. The different joint angles can be fitted by the same function curve. The pointing movement performance can be determined by the fitting parameter vector and the start and end states. Based on this result, a typical motion pattern can be described by a smaller set of variables.
Original languageEnglish
Title of host publicationProceedings of the 23rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2001, October 2001
Number of pages4
ISBN (Print)0780372115
Publication statusPublished - 2001
EventIEEE Engineering in Medicine and Biology Society. Conference [EMBC] -
Duration: 1 Jan 2001 → …

Publication series

NameIEEE Engineering in Medicine and Biology Society. Conference Proceedings
ISSN (Print)1094-687X


ConferenceIEEE Engineering in Medicine and Biology Society. Conference [EMBC]
Period1/01/01 → …


  • Biomechanics
  • Muscle
  • Vectors
  • Vicon 3D motion analysis system
  • End state
  • Fitting parameter vector

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