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IJAT Vol.3 No.3 pp. 298-303
doi: 10.20965/ijat.2009.p0298
(2009)

Paper:

Linear Measurement and Training Device for Leg Evaluation

Katsushi Furutani*, Hiroshi Tachi**, and Mitsuru Saito**

*Department of Advanced Science and Technology, Toyota Technological Institute
12-1 Hisakata 2-chome, Tempaku-ku, Nagoya 468-8511, Japan

**Graduate School of Engineering, Toyota Technological Institute
12-1 Hisakata 2-chome, Tempaku-ku, Nagoya 468-8511, Japan

Received:
December 28, 2008
Accepted:
January 18, 2009
Published:
May 5, 2009
Keywords:
linear motor, impedance control, modeling, skeletal muscle
Abstract

The measuring device we developed to evaluate the leg and use in physical training is driven by a linear motor using impedance or proportional-integral control. The leg is considered a second-order system in the short range. For a leg flexed at a constant speed, we calculated parameters from measured force, displacement, and acceleration and measured parameter transitions in exercise. While the damping coefficient remained almost flat during exercise, the spring constant changed.

Cite this article as:
K. Furutani, H. Tachi, and M. Saito, “Linear Measurement and Training Device for Leg Evaluation,” Int. J. Automation Technol., Vol.3, No.3, pp. 298-303, 2009.
Data files:
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