@INPROCEEDINGS{Ven07_ISSS,
  AUTHOR =       "Venture,G. and Nakamura,Y. and Yamane,K. and Hirashima, M.",
  TITLE =        "Identification of Limbs Joint Passive Viscoelasticity: A Comparison of Two Experimental Methods",
  BOOKTITLE =    "Int. Symp. on Skill Science",
  YEAR =         "2007",
  pages =        "31-37",
  address =      "Tokyo, Japan",
  month =        "September",
  abstract =     {As the assessment of the human body limb dynamics is an important data and no unified method of quantification is yet used, in this paper we are comparing two methods to identify the human joint passive dynamics represented by a common linear model. The first method is a method broadly used in biomechanics or rehabilitation studies and is based on the use of a dynamometer during isokinetic movements. The second method is a in-house developed method based on the use of a motion capture  system and a skeletal model to compute the joint angles and joint torques. In this paper we show that part of the success of both methods depends in the passivity of the movements (no activity of the muscles) and consequently in how much the subject can relax during the test. However with the first method it is difficult to guaranty such an hypothesis. We also show that in the measurements with the dynamometer the dynamics of the dynamometer is partially included which bias the obtained results and makes them difficult to use. We finally show that the proposed method is more reliable, easier to set up and to roll-out not only a medical environment but in a any kind of environment.},   
  file = F
}