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김효선(Hyo-Seon Kim),고창용(Chang-Yong Ko),전창수(Chang-Soo Chon),고철웅(Cheol-Woong Ko),오종건(Jong-Keon Oh),윤종인(Join-In Youn),신태민(Tae-Min Shin),김한성(Han-Sung Kim),이법이(Beob-Yi Lee),임도형(Do-Hyung Lim) 대한체질인류학회 2008 해부·생물인류학 (Anat Biol Anthropol) Vol.21 No.4
최근 한국인 위팔뼈의 계측학적 특징에 대한 연구는 거의 없다. 또한, 한국인과 서양인의 위팔뼈에 대한 계측학적 특정을 비교한 연구는 아직까지 없다. 따라서 본 연구에서는 한국인 위팔뼈의 계측학적 특징을 살펴보고 이를 서양인 위팔뼈의 계측학적 특징과 비교하였다. 본 연구에서는 한국인 위팔뼈 72개(남자의 위팔뼈 66개, 여자의 위팔뼈 6개(왼쪽 위팔뼈 36개, 오른쪽 위팔뼈 36개))를 컴퓨터 단층촬영으로 얻은 2차원 단면 영상을 Mimics 11.11 (Materialise, Ann Arbor, MI)을 사용하여 3차원 모델로 재구성했고 이를 기반으로 위팔뼈의 계측학적 특징을 21개의 항목을 통해 살펴보있다. 이번 연구의 결과와 약 20년 전 자료의 결과를 비교하여 한국인 위팔뼈의 가로 직경(38.8±2.9㎜에서 40.8±3.6㎜)이 커졌다는 것을 알 수 있었다(p<0.05). 그리고 현 연구시점에서의 한국인 위팔뼈의 왼쪽과 오른쪽을 비교한 결과 통계적으로 유의한 차이가 없었다. (p>0.05). 한국인과 서양인 위팔뼈의 전체적인 크기를 비교한 경우에서는 위팔뼈머리의 기울기 각도, 큰결절 옆쪽의 오프셋 거리, 위팔뼈머리높이가 한국인이 더 크게 나타났다(p< 0.05). 본 논문에서는 한국인 위팔뼈의 계측학적 특징을 연구하였고 이를 통하여 한국인에게 적합한 인공보철물을 제작하는데 기여할 수 있을 것으로 기대된다. There were few studies about anatomic characteristics in Korean humerus recently. In addition, there was no comparison between Westerner (European and American) and Korean in anatomic characteristics of humerus. The aims of this paper are therefore to investigate anatomic characteristics in Korean humerus and to compare them with those of Westerner humerus. The seventy-two humerus (male: 66, female: 6) were scanned by computed tomography and three dimensional (3D) models of humerus were then reconstructed from acquired cross-section images. The twenty-one anatomic characteristics of the humerus were analyzed and were measured for each humerus. From the results, humeral head vertical diameter in the present study was generally bigger than that in the previous study (p<0.05). There was no significant difference between the anatomic characteristics of the right and left humerus in the present Korean (p>0.05). Humeral head inclination angle, greater tuberosity lateral offset distance, humeral head height in Korean were generally bigger than those in Westerner (p<0.05). This study may contribute to develop an optimal implants and prostheses for the treatment of humerus fractures of Koran.
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근골격계 질환 예방을 위하여 새로이 제시된 세탁기 디자인에 대한 생체역학적 평가
조영근(Young Kuen Cho),최희석(Hue Seok Choi),김현동(Hyun Dong Kim),최현호(Hyun Ho Choi),윤종인(join In Youn),김영호(Young Ho Kim),신태민(Tae Min Shin),김한성(Han Sung Kim),임도형(Dohyung Lim) 대한인간공학회 2008 大韓人間工學會誌 Vol.27 No.4
Recently, many studies have reported the fact that an excessively accumulated psychological and physical burden induced from physical labor conducted routinely in home and industry can be one of main reasons of musculoskeletal disorders in the working population. This fact makes increase interests in studies to reduce a risk of musculoskeletal disorders through grafting ergonomic considerations on working environment. However, there are currently limited methodologies in quantitative evaluations of new ergonomic suggestions to reduce a risk of musculoskeletal disorders. The current study is therefore performed to evaluate quantitatively effects of a design of washing machine as a new ergonomic suggestion onto prevention of musculoskeletal disorders, through application of a biomechanical evaluation methodology, For this, three-dimensional motion analysis by using musculoskeletal models with Rapid Entire Body Assessment (REBA), which has been generally used for a simple evaluation of a degree of harmfulness of the human body at specific working postures to be considered, was performed, The results of REBA did not give us enough information and their results were somewhat simple and inaccurate, but the results of the three-dimensional motion analysis give us enough information such as alteration of main muscle forces and joint moments required during washing work. All results showed that the main muscle strengths and joint moments were decreased effectively for reduction of a risk of musculoskeletal disorders during the washing work with newly designed washing machine evaluated in the current study, compared with those generated during the washing work with general washing machine. From these results, it can be concluded that a risk of the musculoskeletal disorders, which may be induced by a repetitive washing work, may be reduced through using the washing machine designed ergonomically and newly. Also, it is thought that if our ergonomic design can be applied for improvement of working environment in lifting and laying works conducted repeatedly for a treatment work of goods, which have a strong resemblance to the behaviors generated frequently during the washing work, a possibility of occurrence of the musculoskeletal disorders by the lifting and laying works may be reduced highly.
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