Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : June 06, 2021 - June 08, 2021
In this study, to verify the reduction effect of lumbar burdens under wearing the endoskeleton-type power assist suit developed in our previous study, the lifting motion of heavy objects was analyzed using the musculoskeletal model analysis software, AnyBody Modeling System. Then, the muscle activity of the erector spinae muscles, and the disc compression and shear forces between the L4/L5 lumbar vertebrae were evaluated and compared in different conditions: under un-wearing the power assist suit, wearing the passive-type power assist suit with two or one artificial muscles, and wearing the active-type power assist suit with two or one artificial muscles. As a result, it was confirmed that under moderate assist force, the assist effect can be obtained without adding the burdens to the lumbar vertebrae, even if the endoskeleton-type power assist suit was used.
