著者

菊池 直子

出版者

岩手県立大学

雑誌

岩手県立大学盛岡短期大学部研究論集 (ISSN:13489720)

巻号頁・発行日

vol.3, pp.29-37, 2001-03-01

被引用文献数

1

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The fatigue distribution in a brassiere is considered to be affected by the deformation resulting from wearing. To clarify the tendency of brassieres to deform, by using the circular stamping method, circular areas of two sample frames were studied as test subjects took up six different postures. The following results were obtained. 1) In sample 1, the areas at the strap joints and close to the center of the back expanded, regardless of the posture. In sample 2, the area of each circle expanded or shrank when a change in posture deformed the skin; and close to the center of the back, the area only became larger regardless of the posture, which is similar to the effect seen in sample 1. Since a brassiere is subject to a remarkable amount of fatigue at the strap joints and the center of the back, the fatigue may be attributable to frame configuration factors, including the method used to attach the strap and the small width of the frame close to the center of the back. 2) Anteflexion enlarged the area remarkably at the lower part of a frame. This posture may be a factor that greatly increases frame fatigue. 3) Elevation of the right or left arm showed a tendency to enlarge the area on the elevated side and reduce the area on the opposite side. A sideways rotation showed a tendency to reduce the size of the area on the side of rotation and increase it on the opposite side. However, the distribution of areal changes as a subject moved from a normal standing posture to every one of the other postures did not match the fatigue distribution. These postures therefore have almost no effect on the fatigue distribution.