• Title/Summary/Keyword: Hip function

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The Nonlinear Simulation on the Selection of Suitable Suspension Considering Human Vibration (인체 진동을 고려한 최적 현가장치의 선정에 관한 비선형 모의실험)

  • 김진기;홍동표;최만용
    • Journal of KSNVE
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    • v.10 no.2
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    • pp.247-253
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    • 2000
  • The evaluation of the ride quality had been performed by the subjective method before ISO2631(International Organization for Stadard 2631) and BS6841(British Standard 6841) was precented, but many research programs have been performed by the objective method after that. On this study, the ride quality was evaluated related with the objective method which considered the vibration which the human body feels on the driver's seat while driving on the road. In particular, we made the shock absorber nonlinear model and also selected the suitable shock absorber in the part of the vibration which the human body feels into the simulation. The shock absorber of suspension was dealt with 3 cases respectively with the front wheel and rear wheel. The vibration of the car driving on the road can be transferred to the wheel, the suspension, the vehicle body, the seat and the human body. The signal which was gained from the seat(hip) and the floor(foot) of the human body was changed to the vibration signal which the human body felt through using the frequency weighting function. And then the performance of the shock absorber was calculated through the statistic processing.

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The Effects of a Rehabilitation Program Including Koryo Hand-Acupuncture on Elderly People Post-stroke (재가 뇌졸중 노인에게 적용한 고려수지요법을 포함한 재활프로그램의 효과)

  • Choi Young-A;Suh Soon-Rim;Suh Boo-Deuk
    • Journal of Korean Academy of Fundamentals of Nursing
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    • v.11 no.3
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    • pp.281-291
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    • 2004
  • Purpose: This study was done to investigate the effects of a rehabilitation program including Koryo Hand-Acupuncture on physical function, self-esteem, and quality of life of post-stroke elderly patients. Method: A nonequivalent control group pre-post test research design was used. Participants in the study were 44 post-stroke elderly people (22 in an experimental group, 22 in a control group) enrolled in a social welfare center and a hospital in K city. Data were collected from April 6 to August 20, 2004. The program consisted of Koryo Hand-Acupuncture, ROM exercise, health education and supportive care. The analyses were carried using frequencies, percentages, $x^2$-test, Fisher exact and t-test with SPSS 10.0. Results: The patients in the experimental group, who took part in the 10-weeks rehabilitation program including Koryo Hand-Acupuncture, had significant increases in shoulder joint flexion, shoulder joint abduction, elbow joint flexion, hip joint flexion, knee joint flexion, knee joint extension, flexibility, self-esteem and quality of life as compared to the control group. Conclusion: These results suggest that a rehabilitation program including Koryo Hand-Acupuncture may be utilized as an effective nursing program to improve physical function, self-esteem and quality of life for post-stroke elderly patients.

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A Study on Wearing Satisfaction of Cycle Wear (사이클 웨어의 만족도에 대한 연구)

  • Lee, Yu-Jin;Suh, Mi-A
    • The Research Journal of the Costume Culture
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    • v.16 no.2
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    • pp.219-234
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    • 2008
  • The purpose of this thesis is to conduct research on the degree of satisfaction (for both wearing and functioning) of cycle wear; to present the basic data to develop cycle wears which can lesson the trouble for human body and have an excellent feeling in wearing. To inquire the degree of satisfaction, the method of questionnaire was used for 100 peoples consisted of male cycling players. As the result of the satisfaction degree in wearing, it can be certain that the users are satisfied overall and yet they express the lowest satisfaction at material among material, design, color and function. When it comes to unsatisfactory factors of wearing cycle wear, the most unsatisfactory one is the poor function of clothing on the whole. As the result of the site suitability of cycle wear, we can find the problems on the girth of neck and armhole of the upper garment, and on the part from waist to hip length and the girth from thigh through knee to calf of lower garment. As the result of the motion suitability of cycle wears, we can acknowledge that there are problems on the part of neck, armpit, and abdomen of the upper garment rather than the lower one.

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Characteristics of the Body Shape of Korean Woman Farmers by Crops (주 재배 작목별 한국 여성 농업인 체형 특성)

  • Baek, Yoon-Jeong;Lee, Kyung-Suk
    • Journal of the Korean Society of Clothing and Textiles
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    • v.32 no.10
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    • pp.1584-1594
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    • 2008
  • This study was to research the characteristics of the body shape of Korean woman farmers by the major crops. Four hundred ninety-five Korean woman farmers from 9 different area such as Kumi, Damyang, Iksan, Injae, Chungju, Choongju, Haman, Whasung, and Whasoon volunteered for this study. Their major crops were the rice, the pepper, the water melon, the strawberry, the wild rocambole, the sweet persimmon, the grapes, the mushroom, and the chrysanthemums. Twelve body angles were measured from archived the somatotype photographs of the front, the side, and the back. Questionnaires of SF-36 and the farmer's symptom, and the farm-work related movements were surveyed. The results were as follows; 1. Farmers had lower health levels in physical role limit, pain, vitality, and physical function than other occupational workers. 2. Most farmers acted the high-risk ergonomics motions when they worked in the farm. 3. There were significantly different on the both shoulder angles, the hip tangential line slope, the hip breadth angel, in frontal ankle-knee angle, the bending back angle, the dropping breast slope, the abdominis media angle, under the abdominis media angle, the glutea angle, under the glutea angle, and the sideward knee angle(p<.05). 4. Farmers cultivating the low plants such as the water melon, the strawberry, and the wild rocambole showed more banded vertebralis and side knee angles. Farmers cultivating the red pepper showed the dropping the left shoulder and O shape legs. Farmers cultivating the fruit trees such as the sweet persimmon and the grapes showed the less banded side knee angles than other farmer groups. 5. On comparing the same age, farmers showed the older's body shape in earlier and much more than the old living in the city.

Effect of Correction to Muscle Imbalance in Lower Limbs according to Reduction of Weight Bearing Methods of Four Point of Horizontal Shaft (횡축 4정점 체중부하 감소기법 이용한 하지 근력불균형 개선에 미치는 효과)

  • Kang, S.R.;Kim, U.R.;Jeong, H.C.;Kwon, T.K.
    • Journal of rehabilitation welfare engineering & assistive technology
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    • v.7 no.2
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    • pp.101-107
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    • 2013
  • In this paper, we were to investigate effect of correction to muscle imbalance in lower limbs according to reduction of weight bearing methods of four point of horizontal shaft using two-belt treadmill. Participants were divided to two group according to each ten peoples who have difference of muscle function in left and right legs over 20%. Experiment progressed forty minutes a day three days a week, total four weeks and we estimated the maximal peak torque and average power for testing joint torque in hip, knee and ankle. The results showed that the correction effect of muscle imbalance to the maximal muscle strength was the most effective in hip joint. Also in knee joint, correction effect of muscular reaction was the most effective too. We thought that reduction of weight bearing methods could be positive effect to correct muscle imbalance in lower limbs.

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The Effect on Appendage muscle strength due to Increase in Occlusal Vertical Dimension (수직적 교합고경의 증가가 사지 근력에 미치는 영향에 관한 연구)

  • An, Su-Jin;Lee, Sung-Bok
    • Journal of Dental Rehabilitation and Applied Science
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    • v.17 no.4
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    • pp.231-244
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    • 2001
  • This study was conducted to observe the effect on appendage muscle strength according to increase in occlusal vertical dimension. For this study, ten males with a mean age of 21 were selected. The subjects had a complete or almost complete set of natural teeth and reported no subjected symptoms of pain or dysfunction in the masticatory system. The tested occlusal splints were made at the position of increased occlusal vertical dimension of 2mm, 3.5mm, and 5mm from the ICP. Before and after wearing occlusal splints, the appendage muscle strength were tested by CybexII Dynamometer in each subject. The results were as follows : 1. When occlusal vertical dimension was increased, most of mean muscular strength values were increased except for those of supination and pronation of forearm at the position of 5mm increased occlusal vertical dimension. 2. The statistical analyses demonstrated that the increased occlusal vertical dimension position to be significantly stronger than intercuspal position for the muscle strength of the flexion and extension of hip, supination of forearm, external and internal rotation of knee, dorsiflexion and plantarflexion of ankle (p<0.05). 3. At the position of 3.5mm increased vertical dimension displayed the highest mean muscluar strength value than other positions. 4. Statistically demonstrated values, except for supination of forearm, internal rotation of shoulder, were related to lower appendage. Therefore splint was more effective on lower appendage than upper appendage to make muscle strength increased. 5. The mean increased rate of muscular strength tested on knee(57%), ankle(42%), and wrist(20%) were higher than hip(31%), elbow(14%), and shoulder(17%).

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The effect of microstructure of electrical discharge machinable silicon nitride on wear resistance (방전가공용 질화규소의 미세조직이 내마모에 미치는 영향)

  • 이수완;김성호;이명호
    • Journal of the Korean Crystal Growth and Crystal Technology
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    • v.8 no.1
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    • pp.111-116
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    • 1998
  • Silicon nitride is hard and tough ceramic material. Hereby, mechanical machinability is very poor. It has also high electrical resistance. Silicon nitride of extremely high electrical resistivity becomes conductive ceramic composite by adding 30 wt% TiN. Ceramics with high electrical conductivity can be electrical discharge machined. Using by the Electrical Discharge Machining (EDM) technique. $Si_3N_4-TiN$ ceramic composite with high electrical conductivity is utilized to make metal working tool. These tool materials have severe wear problem as well as oxidation. Post HIP processing after sintering $Si_3N_4-TiN$ ceramic composites was performed. The tribological property of $Si_3N_4-TiN$ composite as a function of content of TiN was investigated in air, at room temperature. The hardness, fracture toughness, and flexural strength were compared with the wear volume. SEM observation of wear tracks can make an explanation of wear mode of $Si_3N_4-TiN$ composite.

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STANDARD OPERATING PROCEDURES OF HARD TISSUES SUCH AS FEMORAL HEAD, ALLOGRAFTS OBTAINED FROM LIVING DONORS (생존 기증자로부터 채취된 경조직(대퇴골두 등)의 조직은행 술식)

  • Lee, Eun-Young;Kim, Kyung-Won;Um, In-Woong;Ryu, Ju-Youn
    • Journal of the Korean Association of Oral and Maxillofacial Surgeons
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    • v.30 no.5
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    • pp.406-413
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    • 2004
  • Progress in medical science and cell biology has resulted in the transplantation of human cells and tissues from on human into another, facilitating reproduction and the restoration of form and function, as well as enhancing the quality of life. For more than 40 years, society has recognized the medical and humanitarian value of donation and transplanting organs and tissues. The standard operating procedures of hard tissues reflect the collective expertise and conscientious efforts of tissue bank professionals to provide a foundation for the guidance of tissue banking activities. Procurement of allograft tissues from surgical bone donors is a part of tissue banking. During the past decades the use of bone allografts has become widely accepted for the filling of skelectal defects in a variety of surgical procedures. In particular in the field of orthopaedic and oral and maxillofacial surgery the demand for allografts obtained from either living or post-mortem donors has increased. Hospital-based tissue banks mainly retrieve allografts from living donors undergoing primary total hip replacement for osteoarthritis or hemi arthroplasty for hip fractures and orthgnatic surgery such as angle reduction. Although bone banks have existed for many years, the elements of organized and maintaining a hospital bone bank have not been well documented. The experience with a tissue bank at Korea Tissue Bank(KTB) between 2001 and 2004 provides a model of procurement, storage, processing, sterilization and documentation associated with such a facility. The following report describes the standard operating procedures of hard tissues such as femoral head obtained from living donors.

Study on the Femininity and the Ideal Beauty of Body Implied in the fashion and the Anti-fashion Movement in the Victorian Period (I) (빅토리아시대 유행복식과 반(反)유행복식 운동에 나타난 여성성자 인체미에 관한 연구 (I))

  • 김정선;김민자
    • Journal of the Korean Society of Costume
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    • v.51 no.2
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    • pp.169-180
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    • 2001
  • This paper is intended to explore femininity, the ideal beauty of body and the features in fashion pursued in the fashion system and the Anti-Fashion Movement in the Victorian period, on which the modern fashion is based. For the informative facts needed in this paper, books on history, fashion history, feminism, art history of aestheticism and tole ideal beauty of body are referred to. On the part I of this paper, the femininity and the ideal beauty of body implied in the fashion system in the Victorian period will be reviewed. following are the conclusion : First, in the Victorian period, the value of femininity is put on the body of female by the discrimination of sex divided in two. Consequently, the characteristics of femininity mainly include dependence, passiveness, emotion, beauty, maternity, innocence, and purity. To emphasize the function of reproduction as primary duty and nature of female, the ideal beauty of body is represented in the form of Venus Naturalis, which symbolizes the fertility. And the external form of this body is expressed in slum waist line, ample busom and hip in fashion. Second, the features of this fashion are classified into three categories by their internal value : images of subordinate female, sensual female and maternal female 1) The image of subordinate female is expressed by concealment of legs, tightening the upper part of the body in corset and restriction on action by the crinoline 2) The image of sensual female is revealed in brazing colors and decoration, excessive exposure of the upper part of the body and hip by means of bustle. 3) The image of maternity is expressed in swollen skirt of crinoline, oval bustle silhouette metaphoring the extended womb resulted from pregnancy.

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A Study on Standardization of Pattern Design of Korean Men's Traditional Trousers (한복바지 원형설계의 표준화를 위한 연구)

  • 정옥임
    • Journal of the Korean Home Economics Association
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    • v.39 no.10
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    • pp.97-109
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    • 2001
  • It is thought that a composition of trousers is related to fabrics with single breadth. Therefore, trousers are designed with pattern using this fabrics with single breadth. However, in the old pattern of trousers, the breadth of 33cm-35cm was not considered in designing patterns. In this context, deciding which pattern design is better is not easy as there are a variety of estimation methods. So in this study, standardization of drafting is pursued by an objective pattern design. For this, a base angle of the trouser closely relating to a form and function was measured and using the height and the base angle, a trouser pattern design was tried. For a measurement of the base angle, 5 subject were selected. They are 25-29 year-old male graduates with fine physical standard. The base angle was measured with symphysis pubis point as a standard when subjects sat with their legs crossed, when they stood with their legs open (not forced artificially) and when they laid down with their legs open. The distance between a knee inside joint and knees was measured three times and the resultant value was used for the pattern design. For a design of trousers, the height was applied and the base angle was fixed. As a pattern drawing, using the height, a base angle and circumference of the hip, a trouser was designed. The production method for the pattern design is as follow: (1) The length formula, is height + $\frac{height}{2}$ (2) The hip girth formula is $\frac{hipgirth}{2}$ - $\frac{hipgirth}{20}$(3) A crotch angle is fixed at $72^{\circ}$. (4) The ratio of outer leg length to leg width is 5 : 8. (5) The component ratio of the upper outer leg length to the pant length is 5 : 8. (6) The ratio of the division point of front right inner leg length and left inner width to upper outer leg length is 5 : 8.

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