2019 Volume 60 Issue 3 Pages 248-254
To clarify the deformation on the surface of the back affecting aesthetics when wearing a brassiere, the backs were measured using 3D body scanners. The subjects were two women aged 30s and 60s years. They each wore several kinds of brassieres. The deformation of the body surface when wearing a brassiere reached a maximum around the posterior axillary. Then, the distance (L) from a vertical line, which is intersecting the coronal plane passing through the shoulder point and the midsagittal plane, to the body surface at the vertical cross section through the posterior axillary point was measured. Then, the deformation amounts (δ), which were defined as the difference of the distance (L) while wearing a brassiere and when nude was examined. The δ depended on clothing pressure at the upper and lower edges of a brassiere. This tendency was stronger for elderly people with a soft body surface. A multiple regression analysis was performed, and it was found that the clothing pressure and the amount of compressive deformation of the body surface (E30) under a load of 0.294N were important factors for determining the δ. It was found that the δ is an important indicator for aesthetic evaluation.
