• Transactions of the Korean Society of Automotive Engineers
• /
• v.11 no.3
• /
• pp.145-154
• /
• 2003

Occupant simulation models have been used to study trends or specific design changes in several typical crash situations. The ATB, Articulated Total Body, was developed and used to predict gross human body responses to vehicle crashes and pilot ejections. Since the ATB source code is open to public, the user can add their own defined modules and functions. The introduction of seat belts into cars significantly decreased the injury risk of passengers in frontal impacts. In this paper, a new seat belt model was developed and implemented into the ATB. For this purpose, a subroutine of the new seat belt was constructed. A force-deflection function was added to replace an existing function to consider energy absorption. The function includes hysteresis effects of the experiment data of the loading and unloading parts of the seat belt load-extension curve. Moreover, this belt model considers a slip between ellipsoid and belt segments. This paper attempted to validate the ATB program which includes the subroutine of new belt models comparing with the real car frontal crash experiments and MADYMO frontal models. The analysis focusses on the human movement and body accelerations.

• Journal of The Korean Society of Integrative Medicine
• /
• v.10 no.4
• /
• pp.199-207
• /
• 2022

Purpose : The purpose of this study is to investigate the effect of shoulder stabilization exercise accompanied by application of a pelvic compression belt on the muscle activity, pain and function of the muscles around the shoulder in subjects with round shoulders. Methods : For the study method, 28 students who were enrolled in K University with a distance of 1 cm or more between the clavicle of the peak and the outer ear path were selected through GPS 400 global postural analysis system measurement. The subjects were randomly assigned to 14 participants in the group wearing a pelvic compression belt and 14 patients in the group not wearing a pelvic compression belt. In all subjects, the muscle activities of the middle trapezius, lower trapezius, and serratus anterior muscles and the shoulder pain disorder index (SPADI) were measured. The intervention was performed 3 times a week for 4 weeks, and the applied intervention was push-up plus and modified prone cobra exercise. The muscle activities of the middle trapezius, lower trapezius, and serratus anterior muscles and SPADI score were compared using dependent t test before and after intervention. Results : In this study, both groups showed that the muscle activity of the middle trapezius, lower trapezius, and serratus anterior significantly increased after the intervention compared to before the intervention. On the other hand, SPADI showed no significant difference. Conclusion : The results of this study showed that muscle activity in the peri-shoulder joint was increased after push-up plus and modified prone cobra exercise in both groups, regardless of whether pelvic compression was applied or not. Therefore, it was found that shoulder stabilization exercise using the pelvic compression belt also contributed to the enhancement of muscle activity in the joints around the shoulder.

• Journal of the Korean Society of Clothing and Textiles
• /
• v.25 no.10
• /
• pp.1791-1800
• /
• 2001

연구의 목적은 지체장애인들의 신체적 특성을 고려하여 움직이기 편하면서 외관이 보기 좋은 기능성 의복을 제작하는데 있다. 휠체어, 크러치를 사용하는 여성 장애인을 대상으로 쟈켓, 바지, 휠체어 랩을 제작하여 외관상 기성복과 차이가 나지 않으면서 보조기구를 사용하는데 불편함이 없는 디자인을 제시하였다. 연구의 결과는 다음과 같다. 첫째, 휠체어사용자 쟈켓은 어깨와 팔의 동작을 쉽게 하기 위해서 뒤 bodice 소매둘레부위에 artion pleats를 주었으며 팔꿈치 부위에 주름으로 처리하여 당김과 움직임을 수월하게 하였다. 바지는 허리선 위치를 수정하고 굽혀져 있는 무릎부위에 앞은 주름, 뒤는 다아트로 처리하였다. 둘째, 크러치 사용자는 전체적으로 외관이 올라간 것처럼 보이는 것을 막기 위하여 쟈켓 길이를 길게 하고 쟈켓 위에 조끼를 덧입은 것처럼 보이게 하였다. 바지의 허리선은 고무벨트를 달았으며 양쪽 옆트임을 하여 지퍼를 달았다. 셋째, 휠체어 랩은 방수와 방한을 대비하여 만든 옷으로 전체적인 외관이 롱 원피스 형이며 발부위에 사각형 발판을 만들어 바람이 들어오지 못하도록 하였고, 양쪽 옆 지퍼를 사용하여 여밈 처리하였다.