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운동 역학 : LabVIEW 그래픽 언어를 사용한 인체 동작 분석 컴퓨터 프로그램 개발
황인승(InSeungHwang),이성철(SungCheolLee) 한국체육학회 1998 한국체육학회지 Vol.37 No.4
인체의 동작이나 스포츠 기술을 분석하는데 있어서 영상 분석법은 가장 기본이 되며 동시에 가장 중요한 연구 방법 중의 하나이다. 영상 분석을 실시하는 과정에서 수치화 작업을 통하여 얻어진 인체 분절 데이터를 가지고 운동역학자들은 분석하고자 하는 변인들을 텍스트 중심 언어들인 Fortran, Basic, Pascal, C언어로 프로그램 하여, 또는 시판되어지고 있는 프로그램 패키지를 사용하여 얻게 된다. 그러나 이들 프로그램 언어들은 오류 발견의 어려움, 프로그램의 방대함으로 인한 이해의 어려움, 작성자 외에는 오류의 수정과 적용이 어렵다는 단점을 지니고 있다. 본 연구의 목적은 프로그램하기 편리하고 그래픽 기능이 뛰어난 LabVIEW(Laboratory Virtual Instrument Engineering Workbench그래픽 프로그램을 사용하여 이러한 문제점들과 단점들을 보완하는 동작 분석 프로그램을 재구성하고 소개하는데 있다.LabVIEW 그래픽 프로그램을 사용하여 프로그램을 만들어 본 결과 프로그램의 이해도와 활용성의 측면에서 효과가 있었으며, 그래픽 기능의 향상과 텍스트가 아닌 그래픽화된 아이콘을 사용하여 프로그램 함으로 여러 가지 변인들의 결과를 즉시 확인할 수 있으므로 수정하는데 편리하였다. 그리고 sub Vi 기능의 첨가로 인하여 프로그램이 보다 간략화 하게 되었다. 그러나 무엇보다도 본 연구에서 다룬 부분들은 LabVIEW가 갖고 있는 기능의 10% 정도에 지나지 않는다는 측면에서 볼 때 LabVIEW의 활용도는 매우 크다고 할 수 있겠다. The cinematographic analysis method is one of the most important research methods in analyzing human movements and sports skills. In the course of analysis, the raw data is obtained from the film by digitizing the body marker and then the kinematic and kinetic variables are calculated by programs made by Basic, Pascal, C language or marketed program packages. Unfortunately there are a lot of disadvantage points when the variables are calculated by above mentioned program languages or marketed program packages. First, it is hard to find out the mistakes. Second, the program is too extensive to figure out exactly and completely. Third, it is very difficult for us to reform and revise the mistakes. Only the programer who made the calculating programs can do these.The purposes of this study are to introduce LabVIEW graphical program package which is convenient to program and has a prominent graphical function, and to reform disadvantage point of above mentioned program language or marketed program package by reprogramming motion analyzing programs with LabVIEW.As a result, motion analyzing programs programmed by LabVIEW were effective from the comprehensive and applicable point of view. Most of all, with improved graphical function, it was easy to check the results immediately and revise the errors easily. In addition, Sub vi. function makes it possible to shorten the length of the program.
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몇 몇 순발력(瞬發力) (POWER) 측정종목(測定種目)의 타당도(妥當度)에 관(關)한 연구(硏究)
高興煥(HeungHwanKo),黃寅勝(InSeungHwang),金泰運(TaeWoonKim) 한국체육학회 1976 한국체육학회지 Vol.12 No.-
I. The purpose of the studyThe purpose of this study is to find the appropriate test items in measuring the power as motor ability For this purpose, this study investigates the correlationships between power test items that come from theory of theory of physics, and power test items that come from records of physical performance tasks.II. The limitation of the studyThe limitation of present study lies in subjects and test instruments. In subjects, the present study used 30 college men, because of restriction time and cost in study. In test instruments, this study adopted photo electric machines instead of switch mat for Margaria Kalamen power test, since it is difficult to make switch mat. So that, generalization of the conclusions of this study will need careful consideration.III. The subjects of the studyThe 30 college men of department of physical education Yonsei University, were chosen and examined as the subjects. The mean age of subjects are 19.5±0.5 years, the mean height are 172.85±6.16cm, and the mean weight are 66.47±9.54kg.IV. The test itemsThe test items as follows Sargent jump, standing bread jump, 50m dash with 15m running start, Gray’s power test, and Margaria Kalamen power test.V. The testing instrumentsOne-hundredth second timer was used for the measurement of Margaria Kalamen power test, and conventional instruments and scales were used for motor performance task and physical examination.VI. The treatment of the dataThe mean, Standard deviation and standard errors of every measurement items were figured out and the significance and correlations between each item were analyzed by product-moment correlation coefficient. All of the data were calculated by computer at computer centr, Yonsei University.VII. ConclusionsThe brief conclusions obtained by the analysis of the datas collected age as follews1. In the power test about motor ability, Sargent jump and standing broad jump are more valid than Margaria Kalamen power test.2. Although the record of Sargent jump and standing broad jump is in cm as unit of distance, the record is to be evaluated as compositive factors, those are force and velocity.3. Margaris Kalamen power test was little significant in order to test power output as explosive ability, since it is to convert force into the weight and the measure distance is limited.4. As the power test, there was shown large correlation coefficient. 761, between Sargent jump and standing broap jumd. S.B.J preferred S.J., because the height that is extended Arm reach with stature in S.J., cannot be accurately measured.
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