• 구강회복응용과학지
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• 제18권4호
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• pp.235-249
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• 2002

This study was accompolished to analyze and compare the number and area of the occlusal contact points in healthy volunteers and athletes with normal occlusion. Before the study, 89 athletes(sports career:8.6 years, average age 20) at Kyung Hee University were selected, and survey was accomplished for athlete's recognition about sports dentistry. For this study, 15 athletes(13 amles and 2 females with average age 20) and 21 healthy volunteers(14 mles and 7 females with average age 20.09) at Kyung Hee University were selected. The visual display acquired by scanning of occlusal record in maximal intercuspation was converted into 16 gray value image. Then, using computer program(J & Lee Occlusal Analyser), the pixel which was in definite range of the gray value was recognized, and the numbers of recognized pixel were calculated to area. The results were as follows : (1) On the survey about sports dentistry, 28% of 89 athletes didn't agree that human occlusion may be important, and 30% didn't have any idea of the influence of human occlusion during their sports activities. (2) The average numbers of total occlusal contact points were 31.05 in control group, and 34.67 in athlete group. The average area of total occlusal contacts was $100.25mm^2$ in control group, and $127.78mm^2$ in athlete group. (3) In control group, the average numbers of occlusal contact points were revealed in order as follows; the first molar(8.48), the second molar(8.24), the second premolar(4.71), the lateral incisor(2.90), the first premor(2.43), the central incisor(2.19), and the canine(2.1). The least average in canine(2.1) was similar to the average(2.19) in central incisor and (2.09) in lateral incisor. In athlete group, the average numbers of occlusal contact points were revealed in order as follows; the first molar(8.87), the second molar(8.47), the second premolar(5.60), the canine(3.80), the lateral incisor(3.33), the first premolar(2.67), and the central incisor(1.93). (4) In control group, the average areas of occlusal contact surface were revealed in order as follows; the first molar($39.47mm^3$), the second molar($37.54mm^3$), the second premolar($9.54mm^3$) the first premolar($6.18mm^3$), canine($3.49mm^3$), the central incisor($2.76mm^3$), and the lateral incisor($1.28mm^3$). In athlete group, the average areas of occlusal contact surface were revealed in order as follows; the first molar($44.11mm^3$), the second molar($40.69mm^3$), the second premolar($16.50mm^3$), the first premolar($9.39mm^3$), the canine($5.08mm^3$), the lateral incisor($3.7mm^3$), and the central incisor($2.25mm^3$). (5). With aging in both control and athlete group, there was a decreasing tendancy in average number of occlusal contact point, and was an increasing tendancy in average area of occlusal contact surface. In comparison at each age, both the numbers and area of occlusal contact were greater in athlete group than in control group. It was not significant in the numbers of occlusal contact points beween athlete and control group(p>0.1), but significant in the area of occlusal contact surface(p<0.05). (6) In comparision as to the kind of sports(Gymnastics:2, Rugby:3, Soccor:5, Ice hocky:5), the numbers of occlusal contact points were the most in ice hocky, and the area of occlusal contact surface was the greatest in gymnastics. With increasing a career in athlete group, there was a decreasing tendancy in average numbers of occlusal contact points, and was an increasing tendancy in average area of occlusal contact surface.

• 대한물리의학회지
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• 제4권3호
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• pp.175-182
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• 2009

Purpose：The purpose of this study is to investigate the effects of Taekwondo training causing leg-muscular strength for elementary school children. Methods：The subjects were Taekwondo group (n=20) and non-Taekwondo group (n=20) from 5-6 graders of elementary school. The Tkd group exercised Taekwondo and the non-Taekwondo group exercised free gymnastics. The subjects were measured 3 times(pre, mid and after)during the 8weeks program. The leg muscular strength peak torque and average power were measured. And the extension-flection of angular speed 60 deg/sec and 180 deg/sec was measured. Results：The results of this study can be summarized as follows: 1. Compared with the Tkd group, the non-Tkd group showed no significant difference in tests statistically in case of right-left of pre-4weeks. The leg muscle's peak torque did not show significant difference in the extension angular 60 deg/sec(p>.05). 2. The score of flection angular speed 60deg/sec was not different in tests leg strength of right-left to pre-4weeks(p<.05), but the muscle was increased according to the amount of time spent in case of the 4-8weeks. 3. Compared with the Tkd group, the non-Tkd group showed no significant difference in tests statistically in case of right-left of pre-4weeks. The leg muscle's peak torque did not show significant difference in the extension angular 180deg/sec(p>.05). The right leg muscular strength was increased in case of the 4-8weeks. The left leg showed no difference. 4. Leg muscular strength was increased in the case of the pre-4weeks in the right of flection angular speed 180deg/sec. The left did not show difference. The right leg muscle in case of the 4-8weeks showed no difference. The left showed significant difference. Conclusion：Taekwondo training is effective for leg-muscular strengthing for elementary school children.

• 대한지역사회작업치료학회지
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• 제2권2호
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• pp.15-23
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• 2012

목적 : 본 연구는 뇌졸중 장애인들의 여가활동 실태, 즉 뇌졸중 장애인들이 주로 참여하는 여가활동, 여가활동 이용실태, 여가활동을 하는 이유, 여가활동을 위해 지출되는 비용, 그리고 여가활동 만족도 등에 관한 실태 도출을 통해 뇌졸중 장애인들의 여가활동을 활성화 시키는데 있다. 연구방법 : 본 연구의 대상은 울산광역시에 소재한 장애인복지관에서 여가활동을 이용해본 경험이 있는 뇌졸중 장애인 70명을 대상으로 2010년 7월 1일부터 7월 30일까지 방문을 통한 직접 설문조사를 실시하였다. 분석은 SPSS for Windows ver 12.0(Statistical Package for Social Science) 프로그램을 이용하여 빈도분석을 하였다. 결과 : 첫째, 장애인복지관에서 뇌졸중 장애인이 가장 많이 참여하는 여가활동으로는 수영, 게이트볼, 요가, 기체조 순으로 나타났다. 둘째, 뇌졸중 장애인이 한 달에 여가활동을 위한 비용은 5만원 이하가 적당한 것으로 나타났다. 셋째, 뇌졸중 장애인의 장애인복지관을 이용한 여가활동 만족도는 63.1%가 만족하는 것으로 나타났다. 결론 : 첫째, 장애인복지관에서 뇌졸중 장애인을 위한 여가 프로그램의 개발이다. 둘째, 여가활동 프로그램의 재정적 지원이 필요하다. 셋째, 신체적 기능향상을 위한 여가 프로그램의 개발과 전문가참여가 필요하다. 넷째, 지역사회의 교류 참여이다.

• 한국산학기술학회논문지
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• 제19권1호
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• pp.477-485
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• 2018

본 연구에서는 초등학생의 두뇌 특성 및 기제를 고려하고 뇌과학에 근거한 뇌교육 기반 학습 프로그램을 단기간의 캠프 형태로 적용함으로써 초등학생의 자기주도적 학습 능력과 태도를 향상시키는데 그 연구의 목적이 있었다. 이를 위해 본 연구는 전국 초등학생 4, 5, 6학년을 대상으로 2박 3일 동안 뇌교육 기반 학습캠프 프로그램을 실시하였다. 2017년 2월 3일부터 5일까지 6학년 45명, 2017년 2월 22일부터 24일까지 4, 5학년 56명, 총 101명을 대상으로 두 차례 진행하였다. 본 연구의 결론을 제시하면 다음과 같다. 뇌교육 기반 학습캠프 프로그램이 초등학생의 자기주도적 학습 능력과 학습 태도를 향상시키는데 효과가 있는 것으로 나타났다. 첫째, 뇌교육 기반 학습캠프 프로그램은 뇌체조, 호흡, 명상을 통해 학습 집중력을 높일 수 있다. 둘째, 뇌교육 기반 학습캠프 프로그램 중에서 '브레인스크린(Brain Screen)'이라는 심상훈련을 통해 기억력을 향상시킬 수 있다. 셋째, 뇌교육 기반 학습캠프 프로그램을 통해 공부를 해야 하는 이유와 학습동기를 부여함으로써 '내 공부는 내가 한다' 라는 자기주도적 공부철학을 확립시킬 수 있다.

• 한국콘텐츠학회논문지
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• 제10권10호
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• pp.440-450
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• 2010

본 연구는 2009년 7월부터 2010년 2월까지 실시된 부산대학교 체육영재센터의 체육영재양성 사업에 참가한 스포츠심리 분야의 현장사례 연구이다. 부산대 체육영재센터는 부산 울산 경남의 초등학교 1,2,3 학년 중 남 여 구분없이 학교장의 추천을 받아 3차에 걸친 운동능력 검사와 운동적합률 검사를 통해 60명(육상:40명, 수영:10명, 체조: 10명)의 체육영재를 선발하여 운영하였다. 하계 및 동계 캠프와 매주 토요일을 활용하여 종목별 전문훈련을 진행하였다. 스포츠 심리학 분야에서는 몇 가지 실험적인 현장적용을 시도하였고, 다음과 같은 시사점을 얻을 수 있었다. 첫째, 초등학교 저학년들의 경우에는 보충설명을 제공하면 검사지를 통한 심리측정이 가능하고, 3학년의 경우는 추가 설명이 없어도 충분히 실시할 수 있었다. 둘째, 다중지능검사는 체육영재들의 지능을 검사하는 방법으로 유용하며, 심리상담 기초자료로써 효휼성이 높았다. 셋째, 체육영재들의 성격은 대체로 외향적이면서 직관과 감정을 선호하는 것으로 제시되었다. 넷째, FAIR 집중력 검사에서는 사후 측정 시 유의하게 향상된 것으로 제시되어, 체육영재 프로그램이 주의 집중력을 높이는데 긍정적으로 작용하였다. 다섯째, 자체 개발한 체육과제 집착력 검사지와 체육활동 자기관리 검사지는 추가적인 타당도와 신뢰도 검사과정을 거친다면 공식적인 심리측정 도구로 활용될 수 있다는 가능성을 발견하였다.

• The Korean Journal of Physiology
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• 제4권2호
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• pp.5-17
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• 1970

The effects of Physical exercise, gymnastics and sports on the cardiopulmonary function were studied in the middle and high school toys. The subjects were divided into 4 groups; non-training group and training group in both middle school and high school boys. In the above groups, pulmonary function studies were performed, and blood pressure and the heart rate were also checked to evaluate physical fitness during and immediately after running exercise on the tread-mill, with the speed of 5 MPH and elevation of 9% and 11.25%. The types of sports in the training group were base ball, body building, Taekwondo (Korean style boxing) and hand ball. The results obtained were as followings: 1) In the training group, cardiopulmonary function showed some tendency of the increase comparing to the non-training group. 2) The increase in cardiopulmonary function was observed according to the age became older, but the clear changes on cardiopulmonary function was not observed as the difference of the group between the training and the non-training. 3) The expiratory volume was decreased as the increase of age except 17 years of age for the value of the per kg body weight. 4) In the non-training group, the mean value of oxygen consumption under maximum work load was increased, while those in the training group was decreased. But it may be noted that oxygen consumption for the expiratory volume was increased in the training group, and that the oxygen cost in the training group was .higher than that of the non-training group. 5) The pulse pressure of the high school group during and immediately after running exercise was observed in the higher value comparing with that of the middle school group It was suggested that the changes of the pulse pressure was owing to the method of determination and that to the decrease of diastolic pressure caused by the decrease of peripheral vascular resistance up to critical closing pressure. 6) Any differences of the changes in the heart rate between the training group and non-training group was not observed during and immediately after running exercise. 7) The relative value of the expiratory volume to the heart rate was decreased in the elder age group.

• 한국운동역학회지
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• 제16권3호
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• pp.65-74
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• 2006

This study was attempted to Kinematical characteristics of the Endo $360^{\circ}$El-grip Swing on the horizontal bar. To do this, we selected and analyzed the performance of two athletes who did Endo $360^{\circ}$El-grip Swing in the horizontal bar competition of male artistic gymnastic in the 22nd Universiad Games 2003 Daegu. We drew the conclusions from the kinematical factors that were came out through analyzing three-dimensional cinematography of the athletes' movements, by using two video cameras. In point of analyzing the actual competition situation, it is expected that gymnastics and coaches have the effective informations, and the following conclusion had resulted. 1. When performing Endo $360^{\circ}$El-Grip, the average for entire required time was $1.93{\pm}0.06sec$. The average for descent phase time was $0.24{\pm}0.02sec$, ascent phase time was 0.22${\pm}0.07sec$, connecting phase time was $0.87{\pm}0.07sec$, and El-Grip phase time was $0.61{\pm}0.02sec$. The descent phase need short period of time but however to have a stable performance, ensuring ascent and connecting phase time are needed. El-Grip phase need short period of time to have a stable re-grasp. 2. To have a convenient preparation for El-Grip in descent and ascent phase, lowering CM, and ease up in sway and plunge from the High Bar would make descent and ascent even more faster and would have increase effect in trunk rotation. 3. In descent and ascent phase, if shoulder angle and arm slope is dwindling then it would effect rotation angle so might risk it from hitting a Bar when putting legs in and out. 4. In connecting phase, it requires some time to show stable performance when El-Grip phase is continued by using hip angle which would make trunk rotation angle bigger and make descent and ascent time slower. 5. In El-Grip phase, when doing motions like hand standing. using hip angle more than maximum would make CM even faster and it is stable position while performing.

• 한국운동역학회지
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• 제16권3호
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• pp.1-7
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• 2006

The Primary type of swinging motion in human movement is that which is characteristic of a pendulum. The two types of pendulums are identified as simple and compound. A simple pendulum consist of a small body suspended by a relatively long cord. Its total mass is contained within the bob. The cord is not considered to have mass. A compound pendulum, on the other hand, is any pendulum such as the human body swinging by hands from a horizontal bar. Therefore a compound pendulum depicts important motions that are harmonic, periodic, and oscillatory. In this paper one discusses and compares two algorithms of Newton's method(F = m a) and Euler's method (M = $I{\times}{\alpha}$) in compound pendulum. Through exercise model such as human body with weight(m = 50 kg), body length(L = 1.5m), and center of gravity ($L_c$ = 0.4119L) from proximal end swinging by hands from a horizontal bar, one finds kinematic variables(angle displacement / velocity / acceleration), and simulates kinematic variables by changing body lengths and body mass. BSP by Clauser et al.(1969) & Chandler et al.(1975) is used to find moment of inertia of the compound pendulum. The radius of gyration about center of gravity (CoG) is $k_c\;=\;K_c{\times}L$ (단, k= radius of gyration, K= radius of gyration /segment length), and then moment of inertia about center of gravity(CoG) becomes $I_c\;=\;m\;k_c^2$. Finally, moment of inertia about Z-axis by parallel theorem becomes $I_o\;=\;I_c\;+\;m\;k^2$. The two-order ordinary differential equations of models are solved by ND function of numeric analysis method in Mathematica5.1. The results are as follows; First, The complexity of Newton's method is much more complex than that of Euler's method Second, one could be find kinematic variables according to changing body lengths(L = 1.3 / 1.7 m) and periods are increased by body length increment(L = 1.3 / 1.5 / 1.7 m). Third, one could be find that periods are not changing by means of changing mass(m = 50 / 55 / 60 kg). Conclusively, one is intended to meditate the possibility of applying a compound pendulum to sports(balling, golf, gymnastics and so on) necessary swinging motions. Further improvements to the study could be to apply Euler's method to real motions and one would be able to develop the simulator.

• 한국운동역학회지
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• 제18권4호
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• pp.77-87
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• 2008

본 연구는 세계적인 경쟁력을 보유하고 있는 철봉종목의 국가대표 K선수를 대상으로 기술분석을 통해 고난도 기술인 Tkatrhev skekhed 동작의 완성도를 높임으로서 경기력 향상에 도움을 주고자 수행하였다. 이를 위하여 Tkatchev stretched 동작의 1차 분석을 통해 기술훈련방법의 피드백을 8주간 제공 한 후 반복적인 분석을 통해 기술의 완성도를 평가하였다. K선수의 1차 Tkatchev stretched 동작은 비행높이가 낮고, 비행 중 신체가 굴곡되어 있으며, 봉잡기 시 신체중심의 위치가 바로 부터 너무 멀고 낮아 낙히의 염려가 있을 뿐만 아니라 후속기술을 위한 역동성을 기대하기가 어려운 단점이 노출되었다. 이 같은 단점을 극복하기 위하여 준비국면인 크게 휘돌기의 하강 시 견관절 각을 빠르게 신전시키고, 고관절의 각운동을 이용한 Tap 동작을 짧고 간결하게 하게 하였다. 또한 몸을 접어주는 Tap 타이밍을 조금 늦추며, 다리를 차내며 신체를 역회전시킬 때 견관절의 각운동을 크게 사용하면서 신체를 충분히 끌어 올리는 연습을 주 5회(오전/오후) 총 7시간의 연습 시간 중 20분씩 8주간(총 800분)을 반복적으로 실시하였다. 그 결과 비록 봉 이탈 순간 수직상승속도의 증가를 이루지는 못하였지만 비행높이가 증가되어 고관절을 신전시키고도 철봉에 다리가 걸리지 않으며 뛰어넘을 수 있게 되어 동작의 웅대함을 제공함으로서 감점요소를 0.2점 제거할 수 있었다.

• 한국콘텐츠학회논문지
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• 제11권5호
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• pp.216-223
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• 2011

현재 매우 미비한 자료만이 남아있는 한국전통무용의 자무(字舞)를 주변 국가(중국)의 자료를 토대로 역사적 학문적으로 재조명, 그 구성원리의 고찰을 통해 독특한 전통 고유 컨텐츠로의 발굴하여 현시대에 맞는 무대예술공연으로 계승 발전시키기 위한 기초자료로 삼는데 본 연구의 목적을 두었다. 본 연구결과를 통하여 첫째, 중국의 '성수무'는 140명의 무용수가 "성초천고(聖超千古), 도태백왕(道泰百王), 황제만년(皇帝萬年), 보조미창"라는 16글자를 이용해 관객을 향하여 표현되도록 춤으로 구성한 것임을 알 수 있었는데 이는 현대의 매스게임과 매우 비슷한 양상과 형식을 가지고 있음을 알 수 있었다. 둘째, 중국의 "영성소무보"에는 천하태평(天下太平) 글자를 만들며 추는 춤인 '영성소무(靈星小舞)'가 존재하였는데 이는 현재 존재하고 있었다는 매우 미비한 자료(고려사(高麗史) 권(卷)25)만이 남아 있는 고려 문종때의 천하태평(天下太平) 글자를 쓰며 추는 춤인 한국 자무인 '왕모대가무(王母隊歌舞)'와 관련이 있다고 사료된다. 본 연구를 계기로, 차후에는 현재 미비하게 전해져 내려오는 한국 전통무용의 자료를 중국과 일본 등의 주변국에 존재하고 있는 관련 문헌 자료 탐구와 연구를 통하여 잊어져 가고 있는 한국 전통예술의 새롭고 다양한 컨텐츠 개발로 이어질 수 있도록 지속적 연구가 필요하다.