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A new system for three-dimensional kinematic trajectory acquisition and analysis—I. The application of an ultrasonic technique to human gait analysis

✍ Scribed by Yin Zejie; Yang Yanming; Wei Qihang; Lu Wenlian

Publisher: Elsevier Science
Year: 1996
Tongue: English
Weight: 653 KB
Volume: 18
Category: Article
ISSN: 1350-4533
DOI: 10.1016/1350-4533(96)00007-0

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✦ Synopsis

This paper discusses some techniques of kinematics analysis, and o!esc+.bes a new system for movement recording and analysis. T&e new system, which is inexpensive and easy to use, consists mainly of some ultrasonic wave transmitters, receivers, a distributive multiprocessor system and software.

The system can record kinematics parameters ofanatomical landmarks (e.g. space coordinates, movement trajectories and angles of hips, knees and ankles) _ Such a system, combined with foot pressure equipment and a force @de, forms an advanced gait analysis system.

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This paper dtxribe.r a 7ww techniyue/orphasr dptertion OJ multichannel ultrasonic .signals. This fechniquv is calbd digital orthogonal integration phase clptection, and it has bepn applied in a new gait analysis system for multipo~rrt kinematic trajectory acquisition. and analysis. It is aOo .&table