아기 띠 착용방법과 종류에 따른 척추형태의 변화

Abstract

Recently, smart baby carriers with convertible hip seat structures that can fold or open the hip seat, moving the center of mass to decrease pain in the waist have been developed. However, automated smart baby carriers have not been developed and there is a lack of data on them. Therefore, spine shapes depending on the shape and wearing method of baby carriers were observed and importan measurement variables that can be used as fundamental data were investigated for application to automatic smart baby carriers. Variables were three types of baby carriers and two types of wearing methods. Subjects were 9 females in their 30s. To observe changes in spine shape depending on variables, first the backside of the body was scanned, and 7 types of data scanned for each subject were aligned based on the left Pternion. Secondly, 14 points were extracted from the cervicale point to the hip circumference on the spine line. Variation in the X-axis, its average variation, variation in the YZ-axis and its average variation were calculated. As a result, variation in the X-axis was not significantly different depending on the wearing method and type of baby carrier. Conversely, YZ-axis average variance revealed significant changes depending on wearing method. It indicated that wearing baby carriers in the front causes movements in the YZ-axis more than in the X-axis to restore balance. It was noted that wearing method induced significant changes to the spine and the problematic loading of the body could be predicted through change of spinal shape.