Author(s)

R. M. Kiss

Abstract

In order to analyze kinaesthesis of motion, the author used a ZEBRIS ultrasoundbased measuring system with single active markers. In essence, the measurement involves the determination of the spatial positions of different anatomical points on the human body while a person is stepping on firm and non-firm plates, which also have active markers attached. This type of measurement can model the correction ability of the person being examined. The provocation test, when the plate is suddenly swivelled out with a provocation unit, can model the equilibration ability of the person being investigated. In this study the kinematic and oscillation (swing) characteristics of 50 healthy persons were identified during stepping and provocation. The kinematic characteristics of stepping were identified by measuring the range of knee motion in all three directions of space and the range of motion of the shoulder girdle and pelvis in a local coordinate system of segments (shoulder girdle and pelvis). The oscillation (swing) characteristics of provocation were identified by average logarithmic decrement, Lehr’s damping ratio, frequency and own frequency. Kinaesthesis can be described by analyzing the results of the measurements performed. Keywords: ultrasound-based measuring system, kinaesthesis, proprioception, swing parameters.

Keywords

ultrasound-based measuring system, kinaesthesis, proprioception, swing parameters.