214 The influence of operating mobile devices on body balance during standing

Abstract

Recently mobile devices are in widespread use. However, there is fear that flexing neck joint while operating mobile devices affects standing posture and body balance in an adverse way. Then the purpose of this study was to clarify the influence of operating mobile devices on body balance during standing. Nine male and a female performed standing on the force platform for three minutes at 6 conditions as follows: 1) with eyes open, 2) with eyes closed, 3) while flexing neck joint with eyes open, 4) while flexing neck joint with eyes closed, 5) while flexing neck joint and holding mobile devices with eyes open, and 6) while operating mobile devices. The center of pressure: COP trajectory was measured using the force platform during standing, and area of a circle of root mean square for COP trajectory was calculated. As compared to among conditions for COP trajectory, it was finding that operating mobile devices didn't impair body balance during standing.