INFLUENCE ANALYSIS OF SEISMIC GROUND MOTION ON ELDERLY MALES BY DIFFERENCE IN POSTURES

Abstract

 The purpose of this research was to make clear the physiological and psychological influence of earthquake motion on posture. 51 elderly male subjects were used by an experiment using vibration table.

 The main results are summarized as follows.

 1) A difference in the physiological and psychological influence of the seismic ground motion was seen between the chair seat and the face up position.

 2) The difference in the physiological and psychological response to a seismic ground motion experience was seen clearly in face up position.

 3) The face up position showed high systolic blood pressure compared with a chair seat.

 4) The face up position feels seismic ground motion more intensely than a chair seat.

 5) The systolic blood pressure in the face up position becomes high after an experience compared with before the seismic ground motion experience.

 6) The pulse rate in the face up position becomes high after a ground shock experience compared with before the experience.

 7) In the face up position, confidence of fire extinguishing falls after a ground shock experience compared with before the experience.

 8) On the other hand, a difference in the physiological and psychological response wasn't seen clearly in the chair seat posture.

 9) The following became clear through multi regression analysis: Sense of seismic ground motion strength was not influenced by age. Sense of seismic ground motion strength can be explained by posture and sense of seismic magnitude.