Assessment of a three-dimensional robotic model for biomechanical-data acquisition of human movement

Med Eng Phys. 2002 Mar;24(2):145-9. doi: 10.1016/s1350-4533(01)00126-6.

Abstract

The use of a kinematic robotic model has not been implemented in the biomechanical-data acquisition protocol, as it has in workplace analysis, ergonomics and design. The purpose of this paper was to assess the use of a kinematic model to retrieve frames of human movements from data obtained at a low sampling frequency. From experimental trials with an original sampling frequency of 60 Hz, the data were sampled again at two lower frequencies, 5 Hz and 10 Hz. The model was then used to reconstitute the data to its original frequency (60 Hz). The results demonstrated that it was possible to retrieve a full 3-D human movement from a sampling rate lower than normal without sacrificing accuracy. It was observed from both reduced sampling frequencies that the error level was comparable to the usual accuracy of a DLT 3-D reconstruction technique. It was therefore concluded that the data retrieved from these two frequencies were very similar to the original data sampled at 60 Hz.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Activities of Daily Living
  • Adult
  • Fourier Analysis*
  • Humans
  • Imaging, Three-Dimensional
  • Joints / physiology*
  • Lifting
  • Male
  • Models, Biological*
  • Movement / physiology*
  • Robotics*
  • Signal Processing, Computer-Assisted*
  • Spectrum Analysis
  • Videotape Recording