• Korean Journal of Applied Biomechanics
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• v.20 no.3
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• pp.253-259
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• 2010

The aim of IAAF's Biomechanics project, initially launched at the 1987 World Championships in Rome, is to support athletes and coaches in the optimization and improvement of their training and competition performance. The IAF and the IAAF supports biomechanical projects, as a service to their Member Federations, starting from the IAAF World Championships in Rome 1987. In 1997, at the IAAF World Championships of Athens. In 1995, at the IAAF World Championships in Goteborg and in co-operation with the Swedish Sport Institute of Karlstad and under the leadership of Anders Bergstrom a biomechanical research on "Throws" was conducted. In 2005, at the IAAF World Championships in Helsinki on 100m - Pole vault, High Jump, Triple Jump, Javelin, under the leadership of Prof. Paavo Komi. The IAAF published the final report in 2008 with a supplement of NSA. In 2007, at the IAAF World Championships of Osaka, in co-operation with Osaka University of Health and Sport Sciences and under the leadership of Prof. Michiyoshi Ae the IAAF received a final report on; short sprint, distance running, high jump, long jump, shot put and javelin. In 2009, at the IAAF World Championships of Berlin, in co-operation with the DLV and the leadership of Helmar Hommel (GER). The purpose of this study is to draw up a plan to perform an effective biomechanics project at 2011 IAAF World championship in Daegu.

• The Journal of the Korea Contents Association
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• v.10 no.8
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• pp.392-397
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• 2010

The purpose of this study was to examine the effects of self management and mental power on athletic performance. To attain the goal of the study some athletics of D city physical education middle school, high school, University in D city. Then, using the physical education middle and high school were complete collection, and University were random sampling method, finally drew out and analyzed 353 athletics in total. Data collected through a questionnaire designed for this study consist of fixed alternative choice response to items constructed to represent the operational definition for each variable. Statistics employed for data analysis was correlation and regression. Based upon the results of the study, the following conclusions appear warranted: 1. Self management influence on athletic performance. 2. Mental power influence on athletic performance.

• Journal of Digital Convergence
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• v.17 no.5
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• pp.385-390
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• 2019

This study aimed to identify the model fit of various versions of Performance Enhancement Attitude Scale (PEAS) developed for measuring quantitatively the attitude toward doping and to provide the information on Korean version of PEAS. One hundred and eighty elite athletic players participated in this study and they filled out 17 items PEAS under the supervision. And 17 items, 11 items, 9 items, 8 items and 6 items PEAS were analyzed by using confirmatory factor analysis. The result of this study showed that an 8 items PEAS was fit for Korean elite athletic players, and a 6 items PEAS was for adolescents, but insignificant. Therefore, further studies of the relationship between psychosocial factors and attitudes toward doping by using 8-items PEAS would provide precise and useful information for developing anti-doping strategy.

• Korean Journal of Applied Biomechanics
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• v.15 no.2
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• pp.197-207
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• 2005

The purpose of this study was to investigate the body segment kinematics by lap time during men's 5,000m racing. The subjects in this study were 4 male athletics who take part in the competition. The two dimension motion analysis with DLT(direct linear transformation) method was executed using digital video cameras. The following conclusion was that : It was shown that top ranking in a competition is continuous race pattern and the last Lap time is the most fast. It was shown that top ranking in a competition is continuos the stride length and it was the largest in the last Lap time. It was shown that according to the passing Lap time trunk frontal angle was decreasing and shoulder angle was continuous.

• Journal of Korea Technical Association of The Pulp and Paper Industry
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• v.43 no.4
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• pp.11-22
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• 2011

Jeonji technique was widely used in general Hanji handicraft including Jihwa handicraft. But the technique itself has not been passed on. By contrast, Jiseung technique and Jiho technique have been passed on and continuously developed. And although the Huji technique has not been transmitted, it should be vigorously used as a technique of producing the frame in order to revive the authenticity of traditional Hanji handicraft. Jumchi technique, a method of using water to connect between layers, is an effective technique of diversely expressing the feel of materials of Hanji craftworks. Modern Hanji handicraft has used the characteristics of paper and paperboard diversely produced nowadays as much as possible, which shows that it is more likely to develop as handicraft.

• Journal of the Korea Society of Computer and Information
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• v.24 no.1
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• pp.115-120
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• 2019

In this paper, we propose a system and an intuitive interface that can create an athletic scene among athletes. We allow you to enter motion as if you were playing a game, so that the user's action becomes the player's action. The user can take various actions in front of the motion sensor and control the object flying to him. When a user specifies an opponent to pass or attack, and takes appropriate action in front of the motion sensor, the movement trajectory of the object is automatically generated by the physical optimization technique in accordance with the motion. In this way, you can create scenes where multiple players play together in a virtual environment. The method of this paper will be very useful for rapid prototyping for cinematic trailers of based on athletics games or animations.

• Journal of Korean Society of Forest Science
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• v.104 no.1
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• pp.150-161
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• 2015

The purpose of this study was to obtain the basic data for the effective development and operation of forest healing by analysing the preference of adults on the forest therapy program. The survey of 516 normal adults on the forest therapy program was conducted. Using SPSS 21.0 Program, data analysis of descriptive statistics and correlation analysis of each program confirmed number of covariate, and so we conducted a factor analysis to short meaningful data. And then we looked at the forest healing program preference difference according to demographic characteristics(sex, age, residence, occupation) through reliability analysis, frequency analysis, T-test, analysis of variance(ANOVA). Facter analysis was performed by use of the VariMax orthogonal rotation factor analysis to abbreviate 37 forest therapy program. Through this, the program has been reduced such as 7 program group(1: psychology-based treatment, 2: teaching and counselling-based treatment, 3: camping and forest bath-based treatment, 4: diet-based treatment, 5: nature and plant-based treatment, 6: meditation-based treatment, 7: respiration and yoga-based treatment) and 7 independent programs(1: sleeping in the forest, 2: vision quest, 3: soaking in water, 4: walking wearing shoes, 5: viewing the forest, 6: mountaineering, 7: athletics in the forest). With this criterion, the forest therapy program difference in accordance with sex, age, residence, occupation has been investigated. First, it was verified that there was a significant difference between male and female in the group of such as psychology-based treatment, diet-based treatment, mountaineering. Second, there appeared a significant difference in groups such as teaching and counselling-based treatment, camping and forest bath-based treatment, nature and plant-based treatment, respiration and yoga-based treatment, athletics in the forest. Third, according to the residence, there appeared a significant difference in groups such as psychology-based treatment, teaching and counselling-based treatment, diet-based treatment, nature and plant-based treatment, meditation-based treatment, vision quest, mountaineering, athletics in the forest. Fourth, according to the occupation, there appeared a significant difference in groups such as nature and plant-based treatment, medication-based treatment, vision quest, walking wearing shoes, viewing the forest, mountaineering. As shown before, it seems to be necessary that we should be mindful of this investigation which shows variety of preference of adults on the forest therapy program according to demographic characteristics. We expect the results of this study to be utilized as basic data for the development of forest therapy program targeting on adults.

• Journal of the Korean Society of Food Science and Nutrition
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• v.39 no.7
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• pp.966-974
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• 2010

The aim of this study was to examine characteristics between nutrient intakes, body composition and physical fitness in gifted athletic boys. The subjects were conducted in 50 boys aged 9~12 years living in Busan, Ulsan and Gyeongsangnam-do, Korea. Dietary intake information was collected from participants using 3-day food recorded and body composition was measured by bioelectrical impedance analysis, and their anthropometric parameters were measured. Swimming group's daily energy intakes were significantly higher compared to those of other groups. Athletics and swimming groups were significantly taller than gymnastics. Swimming group was significantly higher than gymnastics group in weight, fat mass, body fat percent and lean body mass. Athletics and swimming groups were significantly longer than gymnastics group in sit and ball throwing. Swimming group was significantly better than other groups in sit up, and athletics group was significantly faster than gymnastics group in 50 m run. In correlation result for nutrient intake and body composition: 1) Body weight shows positive correlation with protein, phosphorus, sodium, vitamin $B_1$, C and niacin. BMI shows positive correlation with sodium and niacin. Fat mass shows positive correlation with niacin and folate. Body fat% shows positive correlation with vitamin C, E, niacin and folate. LBM shows positive correlation with all elements except lipid, calcium, vitamin A, C, E and folate. In correlation result for nutrient intake and physical fitness: 2) Push up shows positive correlation with iron and vitamin C. Sit and throw ball shows positive correlation with the events except lipid, fiber, vitamin A, E and folate. Sit up shows positive correlation with vitamin $B_1$. Half squat shows positive correlation with iron. Standing long jump shows positive correlation with total energy, lipid, and vitamin A, B and $B_2$. Long run shows negative correlation with protein, carbohydrate, fiber, phosphorus, iron, sodium and zinc. Side step shows positive correlation with niacin. Sit and reach shows negative correlation with total energy, carbohydrate, phosphorus, sodium, zinc and vitamin $B_2$. In correlation result for body composition and physical fitness: 3) Sit and throw ball shows positive correlation with body weight, BMI, fat mass, body fat% and LBM. Standing long jump shows positive correlation with LBM. But long run and 50 m run shows negative correlation with body weight and LBM.

• Journal of Digital Convergence
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• v.13 no.8
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• pp.515-523
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• 2015

The purpose of this study was to investigate relations among the social support, self-esteem, and college life adjustment among college students participating in convergence leisure sports activities. Selected to attain the purpose were 300 college students that took a course on leisure sports at universities in Gyeonggi-do, Chungcheong-do, and Jeolla-do Provinces. After excluding 59 questionnaires that seemed to contain insincere answers from total 300 questionnaires, 241 were used in analysis as final valid samples. They were analyzed in frequency, reliability, and correlation analysis with the PASW Ver. 18.0 program and then confirmatory factor analysis and structural equation modeling analysis with the AMOS 18.0 program. The findings were as follows: First, support from family and support from others among the subfactors of social support had positive effects on positive ego, one of the subfactors of self-esteem, and negative ones on negative ego. Secondly, positive ego, one of the subfactors of self-esteem, turned out to have positive impacts on academic adjustment and school life adjustment, two of the subfactors of college life adjustment, whereas negative ego had negative impacts on academic adjustment and school life adjustment.

• Journal of Korean Home Economics Education Association
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• v.18 no.4 s.42
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• pp.207-216
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• 2006

The purpose of this study was to investigate the body composition and the nutrient intakes of the physical-education high school male athletics and high school male students in Daegu Kyungpook. The study was performed by 122 physical-education high school male students and 78 high school male students. Statistical data analysis was completed by using the SPSS 12.0 program. They were also analyzed by student's t-test at p<0.05. The results were summarized as follows. (1) Chest circumference in athletic group(AG) was significantly higher than in nonathletic group(NG). Hip circumference in nonathletic group(NG) was significantly higher than in athletic group(AG)(p<0.01). Skinfold thickness of triceps, biceps and subscapular in nonathletic group(NG) were thicker than that of athletic group(AG) significantly(p<0.001). Percent of body fat and body fat mass in nonathletic group(NG) were higher than that of athletic group(AG) significantly(p<0.001). Lean body mass in athletic group(AG) was higher than that of nonathletic group(NG) significantly(p<0.001). (2) Athletic group(AG) was significantly higher than nonathletic group(NG) in energy nutrient intakes and vitamin, mineral and other nutrient intakes except Na, vitamin B6, vitamin E(p<0.001). Athletic group(AG) had more intakes than RDA for all nutrient except calcuim. (3) Nonathletic group(NG) was significantly higher than Athletic group(AG) in total nutrition knowledge scores.