Quantitative Analysis of the Rising Movement from Supine to Sitting, Using a Body Pressure Distribution Measurement System

Abstract

Purpose] The purpose of this study was to investigate the influence of rising motion, by analyzing the center of pressure (COP). [Participants and Methods] The subjects were 29 healthy males and females. The peak torque of each body part, long-sitting flexibility (LSF), and the required time were extracted as factors influencing the COP trace length, the speed of motion expressed by r, and the movement pattern expressed by θ.[Results] Trunk flexion at 120°/s, and trunk extension at 60 and 120°/s were identified as factors influencing the COP length. LSF and θ were identified as factors affecting r, the required time. Elbow joint flexion and extension at 90°/s were identified as factors affecting θ. [Conclusion] The results of this study suggest that the characteristics of the rising motion can be quantitatively understood by analysis of the COP information.

Correlation between ankle plantar flexion strength and degree of body sway

“…On the other hand, the authors used a handheld dynamometer (hereinafter "HHD"), and Body Pressure Measurement System (hereinafter "BPMS") to measure APFM strength and degree of body sway. These devices are easy to carry, easy to use, and at the same time, have been reported to provide reliable data which does not greatly differ compared to that by large equipment 8,9) .…”

Correlation between leg extensor torque and the degree of sway

“…Reliability of measurement of leg extensor torque by Strength Ergo 240 is high, and its correlation with isokinetic strength has been recognized used BIODEX 5 , 6 ) . Moreover, switching to the Body Pressure Measurement System has been reported to be easier than to a three-dimensional motion analysis system, and can be developed for use in clinical research 7 ) .…”