축구 스텐딩헤딩 동작분석시의 몰포르기적 연구

문동안 圓光大學校 附設 體力科學硏究所 1994 體力科學硏究 Vol.16 No.-

When we consider this story as so practicable techno-scientific characters from an anatomical-morphology point, we can draw the conclusions as follows. 1)We can think that frembeebacktung through a morphological consideration has guaranted the objectives by dint of the film-recording method. 2) We can think of the spot between the superaural caput and acromion+1 of shoulder as the landmark when we are heading a soccer. 3) The morphologie phenomenon by an image of film can prove phenomenological feature of the movement which will occur in the course of time. 4) The coordination eara of the examiner was p<.001(0.03㎝). Therefore, when we analyze the physical-movements of all sports, we can say confidently that only the way that we first recognize and solve the morphologie problems will contribute much to the development of sports-skill.

우주에서의 중력(Gravity)과 운동과학(Exercise Science)

문동안,김언호 한국스포츠정책과학원(구 한국스포츠개발원) 2017 스포츠과학 Vol.138 No.-

앉은 자세에서 일어날 때의 동작에 대한 작업량, 작업율, 관절모멘트

신길수,문동안 圓光大學校 附設 體力科學硏究所 1992 體力科學硏究 Vol.14 No.-

The standing up movement from the full squat was analyzed oN the assumption of the treatment of excretion. The result showed that this movement was not lover limits of human movement. In this study, mechanical work, mechanical power out put and joint moment were calculated in standing up with arms pushing knees(TYPE 1) and no arms(TYPE 2). Forceplate and 16㎜ high speed camera were used in this experiment. In calculation, the body was divided into segments, and segmental analysis was used, Subjects were four healthy males. The summary of the results is shown below. (1) In body segment work, TYPE 1/TYPE 2 ration of HAT was 1.068±0.102. Thighs was 1.135±0.051. Shanks was 1.644±0.274. (2) In segment contribution to total body work, HAT was 83.9% in TYPE 2. Thighs were 14.3% in TYPE 1 and 13.6% in TYPE 2. Shanks were 1.9% in TYPE 1 and 1.3% in TYPE 2. (3) In mean power of segment, TYPE 1/TYPE 2(%) OF HAT was 54.5±7.5%. Thighs was 60.8±4.8%. Shanks was 93.8±17.8%. (4) There was significant (P<0.05) between type 1 and type 2 in total mean power but no significant difference were found in total body work maximum of total instantaneous power. (5) Total body work in type 1 and type2 were 7.11J/㎏ and 6.44J/㎏ respectively. TYPE 1 was 110% of TYPE 2. (6) Total mean power in TYPE 1 and TYPE 2 were 3.95W/㎏ and 6.81W/㎏ respectively. TYPE 1 was 58.0% of TYPE 2.

Depth Jump 시 도약 방향 및 연령차이가 역학적 요인에 미치는 영향

윤희중,문동안 한국운동역학회 1999 한국운동역학회지 Vol.9 No.1

This study is to investigate the biomechanical factors during the Depth jump. Subjects for this study were 12males, they were grouped in 2guoup by age(20s, 40s). All the subjects were required to perform Depth jump in 3 directions(front, backward, vertical). The performances of all the videotaped(60Hz). The recorded images were subject to digitizing with KWON3D Motion Analysis Package. while the ground reaction force were collected with KwonGRF ground Reaction Force Analysis Package. After collecting the data, the selected kinematical and kinetical variables were computed in relation to jump direction and age. Based on the results of data, the following conclusions were drawn; 1. Differences of jump direction and age have an effect on the jump height and stance time. 2. Differences of jump direction have an effect on the ground reaction force, while age differences have not effect on the ground reaction force. 3. Differences of jump direction have an effect on the hip and ankle angles but have not an effect on the knee angle. Differences of age have an effect on the the hip, knee and ankle angle.

축구헤딩의 동작분석법에 관한 고찰

신길수,문동안 圓光大學校 附設 體力科學硏究所 1993 體力科學硏究 Vol.15 No.-

Of many morphology observation method, we can ensure by filmrecord the objectivity of selbstbeobachtung and fremdbeobachtung which are in and important position. So in this study, by grasping the problems which happen in the middle of taking movies, and by reflecting its solution which is heading in the picture to the study of technics. I commented the pictures continuity was very important. Therefore in this chapter only filmanalyse and the improvement of studying methods to gain the useful materials in morphologie are appeared in this picture. But you should know that this improment of studying methods is not useful in understanding the logical background and the originality of exercise morphology. And I think that there are many problems in objectitication of selbstbeobachtung which is anther main subject in morphology, and we should study harder the improvement of studying methode themselves.

3차원분석법을 이용한 Standing-Jump-Heading의 Kinematics적 분석

신길수,문동안 圓光大學校 附設 體力科學硏究所 1991 體力科學硏究 Vol.13 No.-

The purpose of the present study was to clarify the kinematics characteristics of standing-jump-hearding by means of three-dimensional analysis of cinematography. Twenty male students were participated in the experiment as subjects. They consisted of 10 soccer players as a skilled group, and 10 control students which did never belong the soccer club as an unskilled group. Each subject was instructed to jump by two legs for the ball which suspened with ball-pendulum. Then, the ball height was adjusted to 80% of maximum jump height for each subject. The movements of standing-jump-heading were filmed with two 16mm high speed cameras that set at perpendicular position. From the obtained results, the characteristics of standing-jump-heading was summarized as follow 1) From comparison between skilled and unskilled groups, skilled subjects showed significantly higher practical displacements during the pre-impact and post-impact phases. 2) The velocities of head and shoulder part of the body were significantly higer in skilled subjects. But focused on the velocity of hip in skilled subjects, negative velocity appeared, change of velocity was lover than unskilled. The higher impact velocities in skilled subjects were seemed that the head and shoulder rotated about center of gravity. 3) It is considered that acceleration at impact is substituted for developed force. Than, the accelerations of head, shoulder and hip in skilled subjects were 14.6, 2.8 and 1.4 time in unskilled subjects, respectively. It is concluded that to perfrom standing-jump-heading, skilled subjects made their upper bodies and heads rotate strongly about center of gravity.

임신 40주와 출산 후 6주에 있는 20대 임산부 보행의 역학적 특성 비교

윤희중,문동안,정남주,금명숙,이경식,유실,김영란,한윤수 한국운동역학회 2000 한국운동역학회지 Vol.10 No.1

본 연구는 임신 40주와 출산후 6주간에 있는 임산부의 보행 동작의 특정을 규명함으로써 이와 관련된 연구자들에게 기초자료를 제공하고자 실시하였다. 이를 위해 임신 4주에 있는 임산부를 대상으로 1차 실험을 실시하였으며 동일한 대상자를 출산후 6주에 2차로 실험하여 자료를 수집하였다. 디지타이징 시 오차를 최소화하고 인체관절점의 분별을 위해 21개의 반사마커를 부착하였다. 10m의 보행주로를 걷는 동안 두 대의 비디오카메라를 이용하여60Hz로 자료를 수집하였으며 동시에 100Hz 지면반력자료를 수집하였다.수집되어진 자료는 DLT 방법을 사용하여 분석하였으며 이의 분석에 Kwon3d 프로그램을 활용하였다. 분석결과 다음과 같은 결론을 얻었다. 1. 임신 40주와 출산 후 6주의 보행 시 지지시간과 스윙시간의 비율이 다르게 나타났으며 보폭과 보간, 활보장은 임신 40주에서 더 큰 값을 보였다. 상체 전경각 역시 임신 40주에서 더 큰 값을 보였다. 힙관절, 무릎관절, 발목관절각도는 S1이 출산후 6주에서 큰 값을 보인반면 S2는 출산전후에 큰 변화를 보이지 않다. 2. 상하지면반력의 경우 FP1과 FP2는 임신 40주보다는 출산 6주에서 큰값을 보였지만 FP3는 임신 40주에서 보다 큰값을 보이고 있었다. 전후지면반력의 경우 출산전과 후 모두 Fy2에서 보다 큰 값을 보이고 있었다. This Study was to investigate kinematical characteristic comparison of the gait pregnant 40weeks and after delivery 6weeks 20´s women and provide the basic data. To accomplish this study, in the first, carry out an experiment with the pregnant women in the pregnant 40weeks on the videotape, and than the second, make an experiment with the kinematic data. Kinematic data were filtered with a low-pass, fourth-order Butterworth filter with an effective cut off frequency of 6Hz. The conclusions were drawn as follows; 1. Floor contact Periods(stance and swing rate) were differed from before and after the delivery and a pregnant 40 weeks was greater than after delivery 6 weeks in the step, width, stride. Also, a pregnant 40 weeks was greater than after delivery 6 weeks in the front angular. And the other angular components were represented similar pattern. 2. In the vertical load, delivery 6 weeks was grater than a pregnant 40 weeks in the FP1(first peak) and FP2(valley). And FP3(second peak)was represent that a pregnant 40 weeks was greater than delivery 6 weeks. Also, in the horizontal shear, Fy2(progressional force)was greater than Fy1(breaking force) about time of the delivery.

제자리 점프헤딩의 운동학적 연구

윤희중,문동안,이연종 한국운동역학회 1997 한국운동역학회지 Vol.7 No.1

The purpose of present study was to clarify the kinematics characteristics of standing-jump-heading by means of three-dimensional analysis of cinematography. Twenty male students were participated in the experiment as subjects. They consisted of 10 soccer players as a skilled group, and 10 control students which did never participated in the soccer club as an unskilled group. Each subject was instructed to jump by two legs for the ball which suspended with ball-pendurum. The movements of standing-jump-heading were filmed with 16mm high speed cameras that set at perpendicular position. From the obtained results, the characteriatics of standing-jump-heading was summarized as follows 1) From comparison between skilled and unskilled groups, skilled subjects showed significantly higher practical displacements during the pre-impact and post-impact phase. 2) The velocities of head and shoulder part of the body were significantly higher in skilled subjects. But focused on the velocity of hip in subjects, negative velocity appeared, change of velocity was lower than unskilled. The higher impact velocities in skilled subjects were seemed that the head and shoulder rotated about center of gravity. 3) It is considered that acceleration at impact is substituted for developed force. Then, the accelerations of head, shoulder and hip in skilled subjects were 14.6, 2.8 and 1.4 time in unskilled subjects, respectively. It is concluded that to perform standing-jump-heading, skilled subjects made their upper bodies and heads rotate strongly about center of gravity.

最大酸素攝取量을 因子로한 除脂肪體重의 檢討에 關한 硏究

홍성찬,두만균,문동안,신민호 圓光大學校 附設 體力科學硏究所 1993 體力科學硏究 Vol.15 No.-

The correlationship between lean body mass and V'O_2max for sedentary students was found to be higher(r=0.793) than for soccers(r=576). It was also shown that soccers had a significantly larger V'O_2max per 1㎏ of lean body mass than sedentary students. Previous studies showed that increment of V'O_2max throught endurance training was caused by the increment of such factors as mitocondria maximum cardiac output and maximum stroke volume and was not by lean body mass, So, it was concluded that lean body mass was a reasonable limiting factor for sedentary students but was not a stable factor of V'O_2max because of lower linearlity for soccers and the significant difference on V'O_2max per 1㎏ of lean body mass between two groups.

최대산소섭취량에 의한 트레이닝강도 결정에 관한 연구

신길수,양용길,문동안 圓光大學校 附設 體力科學硏究所 1994 體力科學硏究 Vol.16 No.-

The results of the were summarized as follows; 1) Predicted value of 60% Vo_2max by the indirect method was equal to 57% Vo_2max by an direct measurement and value 80% Vo_2max by the indirect method equaled to 79% Vo_2max by the actually measured value. 2) Predicted value Vo_2max by the indirect method was equal to 99% of the Vo_2max actually measured before and after training. 3) In both training groups, no significant increase was found in Vo_2max as measured by the direct method. 4) Exhaustive walking time increased by 9.5% in 60% Vo_2max group and 10.4% in 80% Vo_2max group respectively. But the increase was not significant in both training groups. 5) Mechanical efficience increased significantly in 60% Vo_2max training group but the increase was not significant in 80% Vo_2max group Improvement in the efficiency was due to decrease in oxygen debt.