Evaluation of the Smoothness of Human Motion

Hiroshi Shimojima, Shinya Kijimoto, Osamu Sato, Shigeru Maeda, Atushi Saito

Research output: Contribution to journalArticlepeer-review


Motions of human arms are analyzed kinetically and kinematically with respect to smoothness. A kinematic arm model with 6 degrees of freedom is suggested and spatial motions are simulated considering the sum of the weighted square of joint displacements, which approximately equals kinetic energy of the whole arm. A low-pass filter is applied for smoothing the kinetic state variables, i.e., displacement, velocity, and acceleration, and the smoothing transfomation is optimized from the aspect of characteristics of response and vibration. Such transformation is also applied to the human arm model, and the effects are investigated through simulations.

Original languageEnglish
Pages (from-to)1803-1808
Number of pages6
Journaltransactions of the japan society of mechanical engineers series c
Issue number562
Publication statusPublished - 1993
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering
  • Industrial and Manufacturing Engineering


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