• Title/Summary/Keyword: 하체

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Evaluation of Optimum Spacing between Anchor Bodies of Distributive Compression Anchor Using Numerical Simulation (수치해석을 이용한 압축 분산형 앵커의 내하체 최적 간격 산정)

  • Gu, Kyo-Young;Shin, Gyu-Bum;Chung, Choong-Ki;Kim, Sung-Ryul
    • Journal of the Korean Geotechnical Society
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    • v.35 no.7
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    • pp.29-39
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    • 2019
  • Load distributive compression anchors distribute the compressive stress in the grout and increase the pull-out capacity of the anchor by using multiple anchor bodies. In this anchor type, the spacing between the anchor bodies has a large influence on the stress in the grout. However, there are few researches about the spacing and there are no design standards. Therefore, the effect of the anchor body spacing on the grout stress was analyzed by performing finite element analyses. First, the applicability of the numerical modeling was verified by comparing with field test results of a compression anchor. Then, the parametric study was performed varying soil type, anchor body spacing, and load magnitude. The analysis results showed that the maximum compressive stress in the grout increased at the narrower spacing and the tensile stress developed at the wider spacing. Therefore, the optimum spacing was defined as the spacing, which prevents the superposition of compressive stresses and minimize the tensile stress. Finally, the optimum spacing was proposed according to the soil type and the load magnitude.

Effects of Lower Body Meridian Hand Therapy on Change in Obese Women's Body Composition and Blood Lipid (하체 경락 수기요법이 비만 여성들의 신체구성과 혈중지질 변화에 미치는 영향)

  • Lee, Kwang-Soo;Han, Gil-Soo
    • Journal of Digital Convergence
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    • v.11 no.11
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    • pp.561-571
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    • 2013
  • This study was carried out to examine the impacts of lower body meridian hand therapy on changes in obese women's body composition and blood lipid. 30 obese women participated in the experiment carried out twice a week for 5 weeks on 15 subjects in lower body meridian hand therapy group and 15 lower-body bathing/lower body meridian hand therapy group. For changes in body composition, BMI, body fat and waist-hip ratio decreased in both groups, while for changes in blood lipid, TC, LDL-C and TG decreased while HDL-C increased by 0.98% in the former group while 1.12% in the latter group. Thus, the 5-week treatment of lower body meridian hand therapy was effective for improving body composition, decrease of blood lipid and of middle-aged obese women, so which can be recommended as lower body obesity management program in esthetics.

Effects of hip joint strengthening on muscle strength, Y-balance and low extremity injury criterion in athletics (엉덩관절 강화 운동이 운동선수의 근력, 동적자세조절 및 하체 손상 준거에 미치는 영향)

  • Park, Woo-Young
    • Journal of the Korean Applied Science and Technology
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    • v.38 no.5
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    • pp.1345-1353
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    • 2021
  • The purpose of this study was to investigate the effects of 6 weeks hip joint strengthen on muscle strength, dynamic posture control and low extremity injury criterion. Twenty athletics were divided into two groups, the exercise group was conducted for three times a week, 60 minutes, and six weeks. The dependent variables of this study were flexibility, muscular strength, dynamic posture control, and lower body injury criterion. The results of this study showed that the flexibility was not significant, but muscle strength was significant difference. The dynamic posture control was significantly effective in the left posterolateral and posteromedial. In addition, total score was significantly exercise effect, and there was no difference between left and right leg length. In conclusion, hip joint strengthen increased muscle strength and dynamic posture control, and decreased the concern of low extremity injury criterion.

Effects of plyometric training on Sargent jump, posture control and lower extremity injury criterion in Taekwondo demonstrator (플라이오메트릭 트레이닝이 태권 시범 선수들의 서전트 점프, 자세 조절 및 하체 부상 준거에 미치는 영향)

  • Park, Woo-Young
    • Journal of the Korean Applied Science and Technology
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    • v.38 no.3
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    • pp.851-859
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    • 2021
  • The purpose of this study was to investigate the effects of six weeks of plyometric training on Sargent jumps, posture control, and lower extremity injury criterion in Taekwondo demonstrator. Twenty healthy collegiate Taekwoondo demontrators were randomly assigned to either an exercise group (Ex = 10), and a control group (Con = 10), Con maintained their normal Taekwoondo demontration training schedule. Whereas Ex group completed the plyometric program in three times a week, 60 minute for 6 weeks. Testing before and after training include the Sargent jump, back muscle strength, Y-balance and lower extremity injury criterion. There are no significant increase in back muscle strength, but significant increase in Sargent jump. In postural control, the anterior was not significant, but there was a significant increase in the left and right posterolateral, posteromedial and the total score showed that there was no risk of injuries. In conclusion, plyometric training is a training method that needs to be actively utilized for power, dynamic posture control, lower extremity injury prevention, and rehabilitation.

The relationships of body-cathexis to satisfaction with ready-to-wear (신체만족도와 기성복에 대한 만족의 상관관계 연구)

  • 황진숙
    • Journal of the Korean Society of Costume
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    • v.34
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    • pp.183-193
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    • 1997
  • 본 연구의 목적은 신체만족도와 기성복에 대한 만족의 상관관계를 규명하는 것이다. 조사대상은 미국 Virginai Tech 여대생으로177부의 설문지를 자료분석에 사용하였다. 신체만족도는 신체 5부위 (얼굴 상체, 하체, 신장 체중) 각각에 대해 측정되었고 기성복에 대한 만족은 기성복의 바지기장 허리 힙, 허벅지 가슴 넥크라인과 다양성에 대한 만족으로 측정되었다. 결과로 특정 부위에 대한 기성복의 만족은 그 부위에 관련된 신체만족도와 깊은 관계가 있었다 예로 기성복의 바지기장에 대한 만족은 하체와 신장에 대한 신체만족도와 관계가 있었다 Symbolic interaction 이론과 social compari-son 이론이 이들 결과를 설명하는데 사용되었다.

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3D Character Motion Synthesis and Control Method for Navigating Virtual Environment Using Depth Sensor (깊이맵 센서를 이용한 3D캐릭터 가상공간 내비게이션 동작 합성 및 제어 방법)

  • Sung, Man-Kyu
    • Journal of Korea Multimedia Society
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    • v.15 no.6
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    • pp.827-836
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    • 2012
  • After successful advent of Microsoft's Kinect, many interactive contents that control user's 3D avatar motions in realtime have been created. However, due to the Kinect's intrinsic IR projection problem, users are restricted to face the sensor directly forward and to perform all motions in a standing-still position. These constraints are main reasons that make it almost impossible for the 3D character to navigate the virtual environment, which is one of the most required functionalities in games. This paper proposes a new method that makes 3D character navigate the virtual environment with highly realistic motions. First, in order to find out the user's intention of navigating the virtual environment, the method recognizes walking-in-place motion. Second, the algorithm applies the motion splicing technique which segments the upper and the lower motions of character automatically and then switches the lower motion with pre-processed motion capture data naturally. Since the proposed algorithm can synthesize realistic lower-body walking motion while using motion capture data as well as capturing upper body motion on-line puppetry manner, it allows the 3D character to navigate the virtual environment realistically.

Effect of core training on dynamic posture control, lower extremity injury, and joint position sense in ski athletes

  • Jong-Yual Kim;Woo-Young Park
    • Journal of the Korea Society of Computer and Information
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    • v.28 no.7
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    • pp.95-102
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    • 2023
  • The purpose of this study was to investigate the effect of 8 weeks of core training on dynamic posture control, lower extremity injury and proprioceptive joint position sensory in ski athletes. Twenty subjects participated in this study and were randomly divided into two groups : exercise group (Ex=10) and control group (Con=10). The core training program consisted of a bench, a sideways bench, a plank, a side bridge, and a supine bridge, and was conducted three times a week for 8 week. The dynamic posture control had a significant effect on the left and right postero-medial reach, and the lower extremity criterion test had a significant effect on the left and right composite scores. In addition, there was a significant decrease in the proprioceptive joint position sense at 15°of the left leg and 45°. In conclusion, 8 weeks a core training have been shown to improve skiers' dynamic posture control, lower extremity injury and proprioceptive joint position sensory.

Decoupled Parametric Motion Synthesis Based on Blending (상.하체 분리 매개화를 통한 블렌딩 기반의 모션 합성)

  • Ha, Dong-Wook;Han, Jung-Hyun
    • 한국HCI학회:학술대회논문집
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    • 2008.02a
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    • pp.439-444
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    • 2008
  • The techniques, which locate example motions in abstract parameter space and interpolate them to generate new motion with given parameters, are widely used in real-time animation system for its controllability and efficiency However, as the dimension of parameter space increases for more complex control, the number of example motions for parameterization increases exponentially. This paper proposes a method that uses two different parameter spaces to obtain decoupled control over upper-body and lower-body motion. At each frame time, each parameterized motion space produces a source frame, which satisfies the constraints involving the corresponding body part. Then, the target frame is synthesized by splicing the upper body of one source frame onto the lower body of the other. To generate corresponding source frames to each other, we present a novel scheme for time-warping. This decoupled parameterization alleviates the problems caused by dimensional complexity of the parameter space and provides users with layered control over the character. However, when the examples are parameterized based on their upper body's spatial properties, the parameters of the examples are varied individually with every change of its lower body. To handle this, we provide an approximation technique to change the positions of the examples rapidly in the parameter space.

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