• 제목/요약/키워드: Kinetic movement

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Design of Kinetic Typography Interaction based on the Structural Characteristics of Hangul

  • Lim, Sooyeon
    • International Journal of Contents
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    • 제12권3호
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    • pp.42-46
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    • 2016
  • Kinetic typography is technology such as color, scale, position of the letter changes dynamically with time and it communicates information with aesthetics and originality. The purpose of this study is to identify the design factors in the formativeness of Hangul and present and implement the interaction design method of unique Hangul kinetic typography based on the scientific structure of Hangul. We implemented the Hangul kinetic typography system, which varies in sizes and motion directions according to a viewer's movement and exhibited in a media art event. To do this, we used a viewer's skeleton information on typography synchronization. The results indicated that Hangul kinetic typography has potential not only as a means to communicate with viewers but also as a medium to show the artistic value of Hangul.

닫힌 역학적 사슬운동에서 무릎관절 각도에 따른 넙다리네갈래근의 근활성도 변화 비교 (Comparison of Changes in the Muscle Activity of the Quadriceps Femoris Muscle in Relation to the Angles of the Knee Joint on Closed Kinetic Chain)

  • 안성자
    • PNF and Movement
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    • 제10권3호
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    • pp.25-31
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    • 2012
  • Purpose : This study was intended to compare muscle activity in relation to knee joint angles on closed kinetic chain. Methods : A total of 13 subjects consisting of 5 adult males and 8 adult females were made to make movements maintaining knee joint angles at $30^{\circ}$, $45^{\circ}$ and $90^{\circ}$ on closed kinetic chain and the muscle activity occurring in their vastus medialis, rectus femoris and vastus lateralis was measured. Statistical data were analyzed using oneway ANOVA. Results : On closed kinetic chain, the muscle activity of the vastus medialis, rectus femoris and vastus lateralis increased the most at $90^{\circ}$ among the knee joint angles with statistically significant differences(p<0.05). Conclusion : On closed kinetic chain, it could be seen that as the angle of the knee joint increased, the muscle activity increased.

Relationship Between the Closed Kinetic Chain Upper Extremity Stability Test and Strength of Serratus Anterior and Triceps Brachii Muscles

  • Weon, Young-soo;Ahn, Sun-hee;Kim, Jun-hee;Gwak, Gyeong-tae;Kwon, Oh-yun
    • 한국전문물리치료학회지
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    • 제28권3호
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    • pp.208-214
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    • 2021
  • Background: The CKCUES test evaluates the functional performance of the shoulder joint. The CKCUES test scores CKC exercises of the upper limbs to examine shoulder stability. Although the CKCUES test provides quantitative data on functional ability and performance, no study has determined the relationship between CKCUES scores and SA and TB muscle strength. Objects: The objective of this study is to determine the relationship between the CKCUES test scores and the strength of the SA and TB muscles in the CKCUES and unilateral CKCUES tests. Methods: Sixty-six healthy male volunteers participated in the study. A Smart KEMA strength sensor measured SA and TB muscle strength. Two parallel lines on the floor indicated the initial hand placement to start CKCUES tests. For 15 seconds, the subject raises one hand and reaches over to touch the supporting hand, then returns to the starting position. Results: The correlation between the CKCUES test scores and the strength of the SA was strong (r = 0.650, p < 0.001), and the TB was moderate (r = 0.438, p < 0.001). The correlation between the unilateral CKCUES test and the strength of the SA of the supporting side was strong (r = 0.605, p < 0.001), and swing side was strong (r = 0.681, p < 0.001). The correlation between the unilateral CKCUES test and the strength of the TB of the supporting side was moderate (r = 0.409, p < 0.001), and swing side was moderate (r = 0.482, p < 0.001). Conclusion: Our study showed that the CKCUES test had a strong association with isometric strength of SA and moderate association with that of TB. These findings suggest that the CKCUES test can evaluate the function of the SA. Moreover, the unilateral CKCUES test can evaluate unilateral shoulder function.

진화 알고리즘을 사용한 인간형 로봇의 동작 모방 학습 및 실시간 동작 생성 (Motion Imitation Learning and Real-time Movement Generation of Humanoid Using Evolutionary Algorithm)

  • 박가람;나성권;김창환;송재복
    • 제어로봇시스템학회논문지
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    • 제14권10호
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    • pp.1038-1046
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    • 2008
  • This paper presents a framework to generate human-like movements of a humanoid in real time using the movement primitive database of a human. The framework consists of two processes: 1) the offline motion imitation learning based on an Evolutionary Algorithm and 2) the online motion generation of a humanoid using the database updated bγ the motion imitation teaming. For the offline process, the initial database contains the kinetic characteristics of a human, since it is full of human's captured motions. The database then develops through the proposed framework of motion teaming based on an Evolutionary Algorithm, having the kinetic characteristics of a humanoid in aspect of minimal torque or joint jerk. The humanoid generates human-like movements far a given purpose in real time by linearly interpolating the primitive motions in the developed database. The movement of catching a ball was examined in simulation.

Rotation Control of Shoulder Joint During Shoulder Internal Rotation: A Comparative Study of Individuals With and Without Restricted Range of Motion

  • Min-jeong Chang;Jun-hee Kim;Ui-jae Hwang;Il-kyu Ahn;Oh-yun Kwon
    • 한국전문물리치료학회지
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    • 제31권1호
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    • pp.72-78
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    • 2024
  • Background: Limitations of shoulder range of motion (ROM), particularly shoulder internal rotation (SIR), are commonly associated with musculoskeletal disorders in both the general population and athletes. The limitation can result in connective tissue lesions such as superior labrum tears and symptoms such as rotator cuff tears and shoulder impingement syndrome. Maintaining the center of rotation of the glenohumeral joint during SIR can be challenging due to the compensatory scapulothoracic movement and anterior displacement of the humeral head. Therefore, observing the path of the instantaneous center of rotation (PICR) using the olecranon as a marker during SIR may provide valuable insights into understanding the dynamics of the shoulder joint. Objects: The aim of the study was to compare the displacement of the olecranon to measure the rotation control of the humeral head during SIR in individuals with and without restricted SIR ROM. Methods: Twenty-four participants with and without restricted SIR ROM participated in this study. The displacement of olecranon was measured during the shoulder internal rotation control test (SIRCT) using a Kinovea (ver. 0.8.15, Kinovea), the 2-dimensional marker tracking analysis system. An independent t-test was used to compare the horizontal and vertical displacement of the olecranon marker between individuals with and without restricted SIR ROM. The statistical significance was set at p < 0.05. Results: Vertical displacement of the olecranon was significantly greater in the restricted SIR group than in the control group (p < 0.05). However, no significant difference was observed in the horizontal displacement of the olecranon (p > 0.05). Conclusion: The findings of this study indicated that individuals with restricted SIR ROM had significantly greater vertical displacement of the olecranon. The results suggest that the limitation of SIR ROM may lead to difficulty in rotation control of the humeral head.

Kinematic and Kinetic Analysis of Upper Limb Motions During Horticultural Activities

  • Lee, A-Young;Park, Sin-Ae;Kim, Jai-Jeong;So, Jae-Moo;Son, Ki-Cheol
    • 원예과학기술지
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    • 제34권6호
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    • pp.940-958
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    • 2016
  • The objective of this study was to analyze the kinematic and kinetic characteristics of two horticultural activities: seed sowing and planting plant. Thirty-one male university students (aged $26.2{\pm}2.0years$) participated in this study. Kinematic factors (movement times, peak velocity, joint angles, and grasp patterns) were assessed using a three-dimensional motion analysis system while the subjects performed the horticultural activities. Kinetic factors (muscle activation of eight upper-limb muscles: the anterior deltoid, serratus anterior, upper trapezius, infraspinatus, latissimus dorsi, biceps brachii, brachioradialis, and flexor carpi radialis) were assessed using surface electromyography. The acts of seed sowing and planting plant were comprised of five tasks which included six types of phases: reaching, grasping, back transporting, forward transporting, watering, and releasing. The movement times, peak velocity, joint angles, and grasp patterns were significantly different across the tasks involved in the horticultural activities. All eight muscles of the upper limbs were utilized during the horticultural activities, and the muscle activation of the serratus anterior was the highest compared to that of the other muscles tested. The kinematic and kinetic characteristics of these horticultural activities showed similar characteristics to reaching and grasping rehabilitation training and daily living activities. The present study provides reference data for common horticultural activities using a kinematic and kinetic analysis.

영문학 기반 키네틱 교육 콘텐츠의 교육적 유의미성과 현장 활용 방안 탐구 (A study of kinetic narrative educational contents based on English literature: A convergent approach)

  • 김은정;신동일;김금선
    • 디지털융복합연구
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    • 제14권4호
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    • pp.43-53
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    • 2016
  • 키네틱 교육(Kinetic education)은 모션을 인식하는 디지털 기기인 체감형 게임기(motion based game device)를 사용하여 교육행위에 운동성을 접목하는 융합형 교육방안이다. 본 논문은 키네틱 교육의 필요성과 의미를 탐색하고, 영미문학 서사 교육, 전신반응 활동에 기반을 둔 스토리텔링(Total Physical Response-Storytelling) 교수법의 특성을 상보적으로 결합시켜 새로운 방식의 디지털교육 콘텐츠의 방향성을 제안해보고자 한다. 이러한 '영문학 기반 키네틱 교육 콘텐츠' 기획을 위한 구체적인 방안과 예시는 '아기돼지 삼형제'(The Story of the Three Little Pigs) 동화를 활용하여 1) 어린이 영문학 작품 선정 및 분석, 2) 콘텐츠 프로토타입 설계 및 개발, 3) 동작 데이터베이스 구축 세 단계로 구분하여 제시하였다. 본 연구는 서사문화 교육과 스토리텔링의 문화콘텐츠 개발을 위한 새로운 융합적 모형을 제안할 것으로 기대된다. 영문학 서사 기반의 키네틱 콘텐츠의 교육적 연계성과 인문학적 가치를 부연하였다.

농구 3득점 점프슛 동작의 운동역학적 분석 (Kinetic Analysis of Three-Point Jump Shot in Basketball)

  • 이동진;정익수
    • 한국운동역학회지
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    • 제20권1호
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    • pp.49-55
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    • 2010
  • The purpose of the study was to analyze kinetic factors required to the three-point jump shot of the basketball games through 3-D analysis and ground reaction force(GRF) analysis. Six university male players participated in this study. The results of the study were showed that (1) resultant velocity in the center of mass(COM) was $0.84{\pm}0.27\;m/s$ since a player didn't shot a ball in the highest peak and shot ball at the moment of going up forward and vertical movement. Therefore, it is necessary to find a proper timing to shot a ball; (2) the angular velocity was largely increased in upper arm and fore arm out of the upper-limb segments and the hands had the largest angular velocity since the body is in a fixed situation and angular speed is rapidly increased by the wrist' snap with the rapid movement of upper arm and forearm at the time of release a ball; (3) it is judged that a player can shot a ball at the accurate and high release point when the player collects power vertically to the maximum by keeping GRF to the right and the rear in a proper way and by keeping the body's balance so that a large power may not be dispersed.

파코 라반의 작품(作品)에 나타난 미래주의(未來主義)디자인 연구(硏究) (A Study on the Futurism Design in Paco Rabanne's Works)

  • 최경희
    • 패션비즈니스
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    • 제9권4호
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    • pp.94-112
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    • 2005
  • This study focuss on the futurism expressed in Paco Rabanne's works. Paco Rabanne, who has created experimental and prophetic avant-garde fashion by cutting edge techniques and revolutionary new materials, is known as one of the most influential fashion designer of modern times. First, Light, one of the most important element in Paco Rabanne's fashion design, shows some influence of medieval symbols of love and salvation. Second, the artistic trends which influenced on Paco Rabanne's fashion include surrealism, op art and kinetic art. His use of new materials and avant-garde style represents the influence of surrealism. His experimental use of waving plastics and glittering metal during his early period is especially related with op art and kinetic art in the early 1960's which emphasize the artistic effect of light and movement. Third, the characters of Paco Rabanne's works are the harmony of technology and the beauty oh machine by the geometrical figures like triangles, rectangles, and circles and represent and movement,and the innovational creative methods, voluptuous beauty.

슬링(sling) 시스템을 이용한 요부 안정화 운동 (Lumbar stabilization exercises using the sling system)

  • 김선엽;권재확
    • 대한정형도수물리치료학회지
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    • 제7권2호
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    • pp.23-39
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    • 2001
  • Dysfunction of the anterior and dorsal muscles of the trunk have been studied in relation to low back pain of many years. Many muscles of the trunk are capable of contributing to the stabilization and protection of the lumbar spine, recent evidence has suggested that transversus abdominis may be critically involved and has been the focus of rehabilitation. The delay in onset of contraction of trunk muscles associated with movement of the upper or lower limb in patients with low back pain indicates a significant deficit in the automatic motor command for control of disturbance to the spine. The function of transversus abdominis has been largely ignored in the evaluation of spinal stabilization and protection. The most essential stabilizing muscles for the lumbar column are the transversus abdominis and the multifidus. Sling exercise therapy(SET) concept consists of a system of diagnosis and treatment. The system of diagnosis involves testing the muscle's tolerance through progressive loading in open and close kinetic chains. The SET system contains elements such as relaxation, increasing the range of movement, traction, training the stabilizing musculature, sensorimotor exercises, training in open and close kinetic chains, dynamic training of the mobilizing musculature, cardiovasc+ular exercises, group exercise, personal exercise at home. Sensorimotor training is an essential element of the SET concept. The emphasis is on closed kinetic chain exercises on an unstable surface, thereby achieving optimum stimulation of the sensorimotor apparatus.

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