Errors in using two dimensional methods to measure motion about an offset revolute

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Description

2D measurement of human joint motion involves analysis of 3D displacements in an observer selected measurement plane. Accurate marker placement and alignment of joint motion plane with the observer plane are difficult. Alignment of the two planes is essential for accurate recording and understanding of the joint mechanism and the movement about it. In nature, joint axes can exist at any orientation and location relative to a global reference frame. An aritrary axis is any axis that is not coincident with a reference coordinate. We calculate the errors resulting from measuring joint motion about an arbitrary axis using 2D methods.

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6 p.

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Hollerbach, K. & Hollister, A. March 1, 1996.

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  • Hollerbach, K. Lawrence Livermore National Lab., CA (United States)
  • Hollister, A. Louisiana State Univ., Shreveport, LA (United States). Medical Center

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Description

2D measurement of human joint motion involves analysis of 3D displacements in an observer selected measurement plane. Accurate marker placement and alignment of joint motion plane with the observer plane are difficult. Alignment of the two planes is essential for accurate recording and understanding of the joint mechanism and the movement about it. In nature, joint axes can exist at any orientation and location relative to a global reference frame. An aritrary axis is any axis that is not coincident with a reference coordinate. We calculate the errors resulting from measuring joint motion about an arbitrary axis using 2D methods.

Physical Description

6 p.

Notes

OSTI as DE96009237

Source

  • 4. international symposium of 3D analysis of human movement, Grenoble (France), 1-2 Jul 1996

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  • Other: DE96009237
  • Report No.: UCRL-JC--123851
  • Report No.: CONF-960794--1
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 240453
  • Archival Resource Key: ark:/67531/metadc670522

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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Creation Date

  • March 1, 1996

Added to The UNT Digital Library

  • June 29, 2015, 9:42 p.m.

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  • Feb. 18, 2016, 3:25 p.m.

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Hollerbach, K. & Hollister, A. Errors in using two dimensional methods to measure motion about an offset revolute, article, March 1, 1996; California. (digital.library.unt.edu/ark:/67531/metadc670522/: accessed November 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.