[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.5207/JIEIE.2013.27.8.021

Analysis of Postural Stability During Continuous External Perturbations

Shin, Youngkyun (Department of Electrical Engineering, Yuhan University)
Park, Gu-Bum (Department of Electrical Engineering, Yuhan University)

Publication Information

Journal of the Korean Institute of Illuminating and Electrical Installation Engineers / v.27, no.8, 2013 , pp. 21-29 More about this Journal

Abstract

The functional behaviors of human standing postural control were investigated when they were exposed to long-term horizontal vibration in the sagittal plane. For complexity of human postural control, a useful alternative method that has been based on a black-box approach was taken; that is, where the feedback mechanism was lumped into a single element. A motor-driven support platform was designed as a source of vibration. The AC Servo-controlled motors produced continuous anterior/posterior (AP) motion. The data were analyzed both in the time and frequency domain. The cross-correlation and coherency functions were estimated. Subjects behaved as a non-rigid pendulum with a mass and a spring throughout the whole period of the platform motion, as consistent with the plan chosen for this study.

Keywords

Standing Postural Control; Horizontal Vibration; Cross-correlation Analysis; Coherence Function;

Citations & Related Records

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