• 제목/요약/키워드: body techniques

검색결과 991건 처리시간 0.031초

인체둘레치수를 활용한 체지방율 예측 다중회귀모델 개발 (Analysis of Body Circumference Measures in Predicting Percentage of Body Fat)

  • 박성하
    • 산업경영시스템학회지
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    • 제38권2호
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    • pp.1-7
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    • 2015
  • As a measure of health, the percentage of body fat has been utilized for many ergonomist, physician, athletic trainers, and work physiologists. Underwater weighing procedure for measuring the percentage of body fat is popular and accurate. However, it is relatively expensive, difficult to perform and requires large space. Anthropometric techniques can be utilized to predict the percentage of body fat in the field setting because they are easy to implement and require little space. In this concern, the purpose of this study was to find a regression model to easily predict the percentage of body fat using the anthropometric circumference measurements as predictor variables. In this study, the data for 10 anthropometric circumference measurements for 252 men were analyzed. A full model with ten predictor variables was constructed based on subjective knowledge and literature. The linear regression modeling consists of variable selection and various assumptions regarding the anticipated model. All possible regression models and the assumptions are evaluated using various statistical methods. Based on the evaluation, a reduced model was selected with five predictor variables to predict the percentage of body fat. The model is : % Body Fat = 2.704-0.601 (Neck Circumference) + 0.974 (Abdominal Circumference) -0.332 (Hip Circumference) + 0.409 (Arm Circumference) - 1.618 (Wrist Circumference) + $\epsilon$. This model can be used to estimate the percentage of body fat using only a tape measure.

Dynamics of Extra-Vehicular Activities in Low-Gravity Surface Environments

  • Spencer, David A.;Gast, Matthew A.
    • International Journal of Aeronautical and Space Sciences
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    • 제14권1호
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    • pp.11-18
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    • 2013
  • Human spaceflight experience in extra-vehicular activity (EVA) is limited to two regimes: the micro-gravity environment of Earth orbit, and the lunar surface environment at one-sixth of Earth's gravity. Future human missions to low-gravity bodies, including asteroids, comets, and the moons of Mars, will require EVA techniques that are beyond the current experience base. In order to develop robust approaches for exploring these small bodies, the dynamics associated with human exploration on low-gravity surface must be characterized. This paper examines the translational and rotational motion of an astronaut on the surface of a small body, and it is shown that the low-gravity environment will pose challenges to the surface mobility of an astronaut, unless new tools and EVA techniques are developed. Possibilities for addressing these challenges are explored, and utilization of the International Space Station to test operational concepts and hardware in preparation for a low-gravity surface EVA is discussed.

핵의학 영상과 추적자 동력학 분석법을 이용한 생체기능 정량화 (Quantitation of In-Vivo Physiological Function using Nuclear Medicine Imaging and Tracer Kinetic Analysis Methods)

  • 김수진;김경민;이재성
    • Nuclear Medicine and Molecular Imaging
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    • 제42권2호
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    • pp.145-152
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    • 2008
  • Nuclear medicine imaging has an unique advantage of absolute quantitation of radioactivity concentration in body. Tracer kinetic analysis has been known as an useful investigation methods in quantitative study of in-vivo physiological function. The use of nuclear medicine imaging and kinetic analysis together can provide more useful and powerful intuition in understanding biochemical and molecular phenomena in body. There have been many development and improvement in kinetic analysis methodologies, but the conventional basic concept of kinetic analysis is still essential and required for further advanced study using new radiopharmaceuticals and hybrid molecular imaging techniques. In this paper, the basic theory of kinetic analysis and imaging techniques for suppressing noise were summarized.

동작기능성 향상을 위한 작업복 연구 (Functional Design Process of Coveralls for the Improvement of Mobility)

  • 홍경희;박길순
    • 한국의류학회지
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    • 제20권2호
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    • pp.311-322
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    • 1996
  • To accomodate workers with efficient mobility, coveralls were redesigned, construted and evaluated. In this study, especially, image processing techniques were applied to the evaluation stage, to quantify thE ease of body movement. For the initial observation stage, car-center workers were interviewed and their movements were videotaped. By analyzing the videotape, the area of stress and strains on the work clothes were marked on the figure chert and considered for the pattern making. 4DM cut pattern were applied to the upper part of the work clothes and other alternations were made throughout the problem area. Honey comb slashes were made on the problem area of the original and newly designed coveralls. Open areas of honey comb slashes due to body movement between the original and newly designed coveralls were analyzed by image processing techniques. Other objective and subjective evaluation of newly designed coveralls was compared with the original one. Overall evaluation of functionally designed coveralls was appered to be positive and the image processing techiques were useful methology to quantify the amount of stress in this study.

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서양 복식사에 나타난 의상장식에 관한 연구 (A Study on the Ornaments in Western Dress History)

  • 이순홍
    • 복식문화연구
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    • 제11권1호
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    • pp.20-46
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    • 2003
  • This study analyzes the garment decorations in the history of western costume based on their kinds and techniques, and consider the beginning and the development of costume decoration. The purpose is to promote a historical understanding of modern ornamentation. Based on the theoretical background concerning the origin and purpose of costume decoration, its symbolism and its relationship with images, this study classified the techniques and kinds of ornament and considered each costumes by their decoration. 1. The ornament was originated from the primitive custom of coloring the skin for the purpose of protecting the body, symbolizing the tribe, indicating the class, and threatening the enemies. As this custom changed into the decoration on the body as a form of tattoos or physical transformations, the practice of ornament seems to begin as a display of one's authority and wealth as well as a human instinct to decorate oneself beautifully. 2. The basic purpose of ornament is to look attractive by decorating oneself with ornaments. Addition of decorative design to the garment tends to complement the practical aspects of the whole clothing, and elevate its value and originality. 3. From the past, ornament has been used as a symbol of wealth and status. Originated from the desire to display one´s authority and power and to receive respect from others, the people's interest in ornament have rising. 4. The kinds and techniques of ornament can be classified into the structural and applied decorations. The former is decorating a part of a garment, such as the neckline, cellar, cuffs, or pockets. The latter includes braids, laces and embroideries. These ornament are diverse in their details and techniques, and should consider both functional aspects of clothing and its decorative functions emphasizing the aesthetic expressions. In the above considerations, we can see that costume ornament was most splendid in the premodern times and it was the simplest in the ancient times. And we also saw the possibility that decorative techniques could be created almost limitlessly.

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세계일류여자높이뛰기선수의 발구름 기술에 대한 바이오메카닉스적 분석 (Biomechanical Analysis of Take-Off Techniques of Women's High Jump Winners at IAAF World Championships, Daegu 2011)

  • 배영상;김의환;김기만;이정민;김성섭;권문석;위웅량
    • 한국운동역학회지
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    • 제21권5호
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    • pp.585-593
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    • 2011
  • The purpose of this study was to analyze, from a kinematical point of view, the high jump techniques of three women's high jump winners at the IAAF World Championships, Daegu 2011. The trends for the techniques of the world's top high jumpers were examined, with a view toward adapting these techniques to the physical characteristics of Korean women's high jumpers. It was valuable that Di Martino, who was the shortest in height, was able to win a medal by using a single arm swing take-off technique, along with a half flexed leading leg swing to attain a deep arch and clear the bar. This showed that the world's top athletes used jumping techniques with no decrease in the run-up velocity at the take-off. Furthermore, It appeared that the knee joint angle at take-off had a direct effect on the body position at take-off (H1).

Corsetry 제작법 비교연구 (A Comparative Study of Corsetry Methods)

  • 박상희
    • 복식
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    • 제58권4호
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    • pp.99-112
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    • 2008
  • The aim of the study was to look into the construction methods of historical corsetry and compare them with the construction methods of corsetry today. Through a comparative study, it was concluded that the design, material, sewing and functions of corsetry of a certain period are sum of the clothing techniques and fashion of the time. Corset was first appeared at the end of the 16th century. It has been through many changes in terms of items, materials, patterns, sewing methods in order to make right silhouettes of the time. Now corsetry has been developed into various items such as waist nipper, all-in-one, nipper bra, and girdle. All these items have a common purpose, that is to improve the body shape. The corsetry of the past was made of non stretchable materials, so they used to restrict body movements, and required individual fitting several times. Due to the development of thin durable stretchable fabrics, functional bones, and advanced sewing machines, construction methods of seam, hem and opening are simplified compare to their predecessors. Consequently corsetry became less weighted, easy to wear, easy to wash and easy to mass produce. Yet they have consistency in sewing techniques such as using bones or wires to support bodice shape, using durable twill fabrics over plain for attractive body shapes.

Effects of Soft Tissue Massage of the Posterior Deltoid Muscle on Shoulder Horizontal Adduction

  • Park, Kyue-Nam;Kwon, Oh-Yun;Kim, Si-Hyun;Choi, Houng-Sik
    • 한국전문물리치료학회지
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    • 제17권4호
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    • pp.35-40
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    • 2010
  • Stiffness of the posterior deltoid is as a causative factor in the limited range of glenohumeral horizontal adduction and various other shoulder pathologies including shoulder impingement syndrome, frozen shoulder, and humerus anterior glide syndrome. The purpose of this study was to compare the effects of two techniques (soft tissue massage and cross-body stretch) on increasing the range of horizontal adduction. Thirty-two subjects with a $10^{\circ}$ or greater difference between the right and left sides in horizontal adduction were selected. Sixteen subjects from each group were allocated randomly. Interventions were applied on six occasions for 2 weeks, and the range of horizontal adduction was measured using an inclinometer at pre-and post-intervention. A $2{\times}2$ analysis of variance (intervention${\times}$time) was used to compare the effects of the two techniques. In the soft tissue massage group, the angle of horizontal adduction significantly increased compared with the cross-body stretch group. These findings indicate that the soft tissue massage of the posterior deltoid muscle is a more effective method to increase the flexibility of the glenohumeral horizontal adduction.

투명성을 이용한 현대 패션디자인의 미적 특성 (Aesthetic Characteristics of Modern Fashion Design with Emphasis on Transparency)

  • 김선영
    • 대한가정학회지
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    • 제46권8호
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    • pp.17-26
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    • 2008
  • The purpose of this study was to identify the aesthetic characteristics of modern fashion design use with a particular focus on transparency, and to help create future vision and feature. As part of the methodology for this study, I examined the concept of transparency, its characteristics and how it was expressed through art, architecture and other designs using literature research. Furthermore, I performed justifiable analysis on modern fashion design which used transparency from the 1990s till present. The following concepts were deciphered from information: Firstly, the concept of purity was highlighted. The emphasis here was to enhance the body's natural beauty with simple silhouettes that do not restrict its curves, using light materials such as clear vinyl, semi-clear materials or thin chiffon. Secondly, to express sensuality by exposing the body's curves with tight wrapping using clear materials, or with indirect and symbolic see-through techniques using contrasting clear, semi-clear and opaque materials. Thirdly, to express futurism through cyber and electronic images using high tech or shiny materials such as metal or holograms. Mechanical movements or effects of light are also used. Fourthly, to express playful characteristic by promoting surprises and disharmony that contradict with traditional techniques. This is carried out by intentionally exaggerating certain portions of clothes through disorder elements or confusion, and unsymmetrical shapes which destruct the human body's normal form.

Free Flap Reconstruction in Patients with Traumatic Injury of the Forefoot

  • Kang, Shin Hyuk;Oh, Jeongseok;Eun, Seok Chan
    • Journal of Trauma and Injury
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    • 제32권3호
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    • pp.187-193
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    • 2019
  • Many techniques have been developed for reconstruction of the hand; however, less attention has been paid to foot reconstruction techniques. In particular, reconstruction of the forefoot and big toe has been considered a minor procedure despite the importance of these body parts for standing and walking. Most of the weight load on the foot is concentrated on the forefoot and big toe, whereas the other toes have a minor role in weight bearing. Moreover, the forefoot and big toe are important for maintaining balance and supporting the body when changing directions. Recently, attention has been focused on the aesthetic appearance and functional aspects of the body, which are important considerations in the field of reconstructive surgery. In patients for whom flap reconstruction in the forefoot and big toe is planned, clinicians should pay close attention to flap survival as well as functional and cosmetic outcomes of surgery. In particular, it is important to assess the ability of the flap to withstand functional weight bearing and maintain sufficient durability under shearing force. Recovery of protective sensation in the forefoot area can reduce the risk of flap loss and promote rapid rehabilitation and functional recovery. Here, we report our experience with two cases of successful reconstruction of the forefoot and big toe with a sensate anterolateral thigh flap, with a review of the relevant literature.