Effect of Load of Shoulder Bag on Human Body

Abstract

Swing motion of the tote bag become overload with the shoulder of human during walking, compared to bag weight during standing. It was thought that the load from swing motion of tote bag can be reduced by preventing it. In this study, to examine the influence of preventing swing motion of the tote bag on human body, swing motion of the tote bag and wobble motion of human body, and load on the shoulder of human were measured on the condition of fixed the tote bag to human body or not. The coefficient of variance of vertical motion of the tote bag and human body, average value of the load on the shoulder and maximum value of moment about the center of gravity of the upper body on the condition of fixed the tote bag to human body were compared to not fixed.. In conclusion, this study suggested that the load on human body from swing motion of the tote bag was reduced by fixing the tote bag to human body.