100m 달리기시 최고 속도 구간과 감속 구간의 동작 비교 연구

은선덕,정철수,배성제 한국운동역학회 1996 한국운동역학회지 Vol.6 No.1

본 연구의 목적은 100m 달리기에서 최고 속도 구간과 감속 구간에서의 동작을 비교하여 감속의 원인을 규명하는 데 있다. 두 구간에 대한 주요 운동학적 변인인 신체 중심의 속도와 변위, 보속과 보폭, 상체의 전경각, 관절각, 각속도를 분석하여 다음과 같은 결론은 얻었다. 감속 구간에서의 지면 접촉 기간 동안과 체공 기간 동안의 신체 중심의 수평 속도는 최고 속도 구간에 비해 느린 것으로 나타났다. 보속은 최고 속도 구간에 비해 느린 것으로 나타났고, 지지 시간은 긴 것으로 나타났으며, 체공 시간은 차이가 나타나지 않았다. 보폭은 최고 속도 구간에 비해 짧은 것으로 나타났고, 착지시 신체 중심과 발끝의 수평 거리는 최고 속도 구간에 비해 긴 것으로 나타났다. 또한 상체의 전경각은 착지시에만 차이가 있었으며 최고 속도 구간에 비해 작고, 무릎 관절각은 착지시와 이지시에 있어서 최고 속도 구간에 비해 작았다. 그리고 고관절각은 반대발의 이지시와 착지시, 그리고 최소값에 있어서 최고 속도 구간에 비해 크고, 운동 범위에 있어서는 작은 것으로 나타났다. 또한 무릎 관절 각속도는 최고 속도 구간과의 비교에서 차이가 나타나지 않았다. The study was conducted to make a comparative analysis of running motion and to examine the difference in the deceleration phase(80∼90m) and the Max-speed phase(30∼40m) during the 100-meter Sprint. In this study, data was analyzed with variables including velocity and displacement of center of gravity, stride frequency, stride length, foward angle of upper body, joint angle, angular velocity in the deceleration phase and the max-speed phase. The conclusions of the study were as follows ; 1. Horizontal velocity of the center of gravity in the deceleration phase was found to be slower than that in the max-speed phase in the supporting period and non-supporting period. 2. Stride frequency in the deceleration phase was found to be slower than that in the max-speed phase, and supporting time n the deceleration phase was longer than that in the max-speed phase, also there was no difference between each phase in nonsupporting time. 3. Stride length in the deceleration phase was to be found shorter than that in the max-speed phase. 4. Horizontal distance between the center of gravity and toe in the deceleration phase was to be found longer than that in the max-speed phase. 5. Forward angle of upper body at the moment of touch down in the deceleration phase was found to be smaller than that in the max-speed phase. 6. Knee angle at the moment of touch down and take off in the deceleration phase were found to be smaller than in the max-speed phase. 7. Hip angle at the moment of touch down and take off of the other foot, and minimum hip angle in the deceleration phase were found to be larger than that in the max-speed phase, and range of, motion in the deceleration phase was smaller than that in the max-speed phase. 8. Knee angular velocity at the moment of touch down of the other foot toward flection in the deceleration phase was found to be larger than that in the max-speed phase.

身體均整을 爲한 整形體操의 一硏究

金德善 대구교육대학교 1966 論文集 Vol.2 No.-

There comes in the orthopedic exercises for the person who is likely to be neglected as physically abnormal and weak to have a harmonized and well-balanced physique. The exercises of this sort are refered to those which are so constituted that they can correct the deformed and make the weakened restore his faculty for games and activities. As the writer believed it to be necessary to consider the compansatory orthopedic exercises which would be effective as suitable and rational measure, against the physical abnormality, he made a study with following steps: 1) to check tke objects of study and the points which need the orthopedic treatment, 2) to identify the nature of orthopedic exercises and apply the principle. 3) to find the practical and effective methods of orthopedic exercises which could be applicable to the whole area of exercises.

국사학습 연표자료의 실태와 개발방안

김덕진,박태선,정종재 전남사학회 2002 역사학연구 Vol.19 No.-

A chronological table of Korean history is a study material which is arranged for us to understand the course of a historical development and a table that historical events are arranged and systematized in a chronological order as time passes, As a middle school Korean historical textbook has 10 chronological tables and a highschool Korean historical textbook has 6 chronological tables, they are very useful to take a general view of the unit. But the years which can represent the unit are left out or the facts which are not referred to in the main text are wrote down. On the other hand, the facts which are written down in a chronological table are not seen in the main text or in the general chronological table. In addition, a middle school historical textbook has two main chronological tables while a highschool historical textbook has nothing. Therefore we should write down the historical facts as 3 aspects of the followings. First, There can be a periodical history divided into a short period, a middle period, and a long period. Second, There can be a classified history divided into a political, an economical, a social, and a cultural affairs. A third, There can be a thematic history divided into a military, a foreign, a traffic, a communicative, an industrial, an educational, an academic, and a religious affairs. Otherwise, we had better make a chronological table which is divided the historical facts occurred in an special period into some kinds of categories or into a region, a race, and a nation.

트레드밀의 속도 변화에 따른 노년기 성인의 보행패턴 연구

은선덕 서울대학교 체육연구소 2001 서울大學校 體育硏究所論集 Vol.22 No.1

The purpose of this study was to investigate the effect of speed conditions on the gait pattern in old age. Data were collected using video camera and video analyzing system. Six males in their sixty to seventies were tested during slow(3.5km/h), moderate(4.0km/h), fast(4.5km/h) speed on treadmill wish 10% grade. They were videotaped using a high speed video camera with the frame rate being 60Hz, Variables computated using the method of two-dimensional video analysis. One-way ANOVA was used to evaluating the statistical significance. The results obtained from this study were as follows: The stance phase was increased and swing phase was decreased as the speed uras increased in all subjects. But there was no significant difference statistically. All subjects did not show a significant difference in speed conditions at major events jn mean ankle angle. However, max. ankle angle and ROM(range of motion) during stance phase was augmented as the speed was increased(P<.05). All subjects did not show a significant difference in speed conditions at major event in mean knee angle. However min. ankle angle during stance phase and ROM during swing phase was augmented as the speed was increased(P<.05).

계단 오르기 동작시 계단 높이에 따른 하지 관절 모멘트의 변화 분석

은선덕 한국운동역학회 2003 한국운동역학회지 Vol.13 No.1

Eun, S-D. The effect of the stair heights on lower extremity joint moment in stair-ascent activity. Korean Journal of Sport Biomechanics, Vol. 13, No. 1, pp. 121-138. The purpose of this study was to investigate the effect of the stair heights on lower extremity joint moment in stair-ascent activity. Data were collected by 3-D cinematography, force platform. six normal males were participated in this experiment. All subjects performed a stair-ascent in four different heights of stairs (10, 14, 18, 22cm) having a 5 step staircase. The moment of lower extremity joint was analyzed during stance phase. The results were as follows: First, the second increase of plantar flexion moment of ankle joint in the 'forward continuance' phase was not occurred for stair A and B. But it occurred for stair C and D. And the maximum plantar flexion moment increased as the stair height become higher. Second, it was shown that the maximum inversion moment of the ankle joint was the smallest at stair B and it increased significantly at stair C. Third, maximum extension moment appeared in the 'pull-up' phase. And it increased as the stair height become higher. Fourth, it was shown that the maximum abduction moment of the knee joint was the smallest at stair C and it increased significantly at stair C. Fifth, maximum extension moment of hip joint increased significantly at stair C. Sixth, remarkable value of adduction moment occurred at hip joints and maximum adduction moment increased at stair D.

國民學校 體育科 敎育課程의 分析硏究 : 合理的인 敎育課程의 改正을 爲하여

金德善 대구교육대학교 1967 論文集 Vol.3 No.-

Since the announcement of new curriculum on February 15, 1963, the revised curriculum has been in practical operation at the elementary school. Through observation and researches based on my own experiences in teaching physical education in classroom, I have found that the current physical education curriculum for the elementary school has many unsatisfactory defects in terms of meeting the needs of contemporary society and realizing educational objectives of the physical education program. From the view points of objectivity and inter-coordination of its subject matters, there is substantial inconsistency in the arrangement and selection of teaching materials compatible with pupil's physical and mental growth. Taking these deficiencies into full consideration, I have attempted in this paper a detailed systematic and comparative analysis based on the physical education curriculum prepared by the Ministry·of education. After a comprehensive investigation of the subject, I have presented a tentative proposal for physical education curriculum in the elementary school with an emphasis on the necessity of revising the current curriculum, hoping that it will be seriously examined and evaluated by specialists in the field.

전기 치수 검사 시 역치 자극 이후 과용(過用) 자극 시간의 측정

남기창,안선희,김수찬,김덕원,이승종 大韓齒科保存學會 2004 Restorative Dentistry & Endodontics Vol.29 No.3

Use of electric pulp testing elicits painful response in vital teeth. In this study, we examined the excessive time from pain feeling to stimulation disconnection in clinical situation. D626D (Parkell Inc., USA.) scan type electric pulp tester was used in total of 23 young healthy individuals. Each of the right central incisors and first premolars were used as testing teeth. Stimulation disconnection was achieved by EMG in anterior belly of digastric muscle, finger span, and voice and the excessive stimulation time over the sensory threshold was recorded. As a result, we found that the short responses before the stimulation disconnection appeared following order: EMG, finger span, and voice. The EMG disconnection is suggested to be used to reduce the excessive stimulus time in electric pulp testing.

투구 속도 증가에 따른 타자의 발 움직임과 지면 반력의 변화

이영석,은선덕 한국운동역학회 2004 한국운동역학회지 Vol.14 No.3

Y. S. LEE, S. D. EUN. The Movement of Foot and the Shift of Ground Reaction Force in Batters according to the Ball Speed Increase. Korean Journal of Sport Biomechanics, Vol. 14, No3, pp. 191-202, 2004. The batting performance in baseball is a repetitive movement. In order to make the stabilization of posture and the efficient shift of body weight, both the range of stance and stride are important. The previous studies explained that the consistent stride which included the amount of time, stance, and direction were needed. However, the batting performance is frequently changed according to the several speed of ball. Therefore, this study was to analyze the reaction time, the range of stance, the change of stride, and the change of GRF during the batting movement in three kinds of ball speed (120km/h, 130km/h, & 140km/h). Seven elite players are participated in this study. 1. The reaction time of the stride phase was short whereas the time of the swing phase was long according to the increasing ball speed. 2. The range of the stance was wide and the mediolateral direction of the stride was decreased according to the increasing ball speed. 3. In the three kinds of ball speed, the change of body weight was transferred to the center, the rear foot, and the front foot directions. The ball speed of 130km/h showed the high frequency of the suitable batting. At this ball speed, the movement of the body weight was shifted smoothly and the value of the Ground Reaction Force was large enough.

두 번의 연속적 뇌경색에 의한 양측성 외측연수증후군 1예

조광덕,이덕희,황정숙,민선호,조아현,조경희 대한노인병학회 2004 대한노인병학회지 Vol.8 No.1

휠체어 디자인 특성에 따른 효율의 차이 규명

임비오,문영진,은선덕 한국운동역학회 2003 한국운동역학회지 Vol.13 No.1

Lim, B-O · Moon, Y-J and Eun, S-D. Analysis on the differences of mechanical efficiency from design characteristics of wheelchair. Korean Journal of Sport Biomechanics Vol. 13, No. 1,pp. 109-119.'2003 Korean Society of Sport Biomechanics proceedings. The purpose of this study was to investigate differences of the mechanical efficiency of the characteristics of the basketball wheelchairs(cambers & size of the handrims). Nine mechanical efficiency on the characteristics of the basketball wheelchairs(cambers 7 size of the handrims). Nine healthy and normal wheelchair basketball players who had no impairments to their upper extremities were volunteered to participate in this study. VO_2 was collected using automatic gas analyzer(vmax29). Gross efficiency, net efficiency and work efficiency were analyzed from the calculated external power output and energy expenditure. The results were followed. First, gross efficiency in the basketball wheelchairs was observed across the range form 4 to 10%. Gross efficiency in this study showed less values than that from the literature reviewed in the arm cranking(15%), racing wheelchair(above 30%), gait(27%) and cycling(18-23%). Second, the small size of handrim(61cm) at the 16 degrees of camber produced higher efficiency values than the large size of handrim(66cm) whereas the different sizes of handrim at the 20 degrees of camber did not show any pattern. Third, both faster speed(1.11㎧→1.39㎧) and increase in treadmill inclination produced increases in energy expenditure. The results of this study may provide not only better understanding of the mechanical efficiency with adequate camber degree and proper size of handrim but also fundamental information for manufacturing the wheelchair.