Evaluation of the Postural Response to Backward Stress on a Narrow Platform

Abstract

[Purpose] To clarify the relation between the standing postural stability during work on a stepladder and the center of gravity (CoG) sway area of static standing. [Participants and Methods] Nine healthy adults were the subjects of this study. A Postural Stress Test (PST) of backward stress on a narrow horizontal platform was performed, and the CoG of static standing was measured. The relationships between CoG sway area of static standing, latent time and maximum distance of CoG were evaluated using correlation analysis. [Results] It was clarified that there is a correlation between CoG sway area of static standing and latent time. Also, latent time correlates with the maximum distance of CoG. [Conclusion] The results suggest that the standing postural stability during work on a stepladder can be evaluated with CoG sway area of static standing.