• Journal of Nutrition and Health
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• v.37 no.10
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• pp.881-887
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• 2004

Elevated plasma homocysteine is an independent risk factor for the development of cardiovascular disease. Exercise is generally believed to reduce the plasma homocysteine levels and therefore, being beneficial for cardiovascular disease (CVD). However, there is a possibility that athletes undergoing strenuous training and competition which increase oxidative stress may suffer from increased plasma homocysteine levels. The purpose of this study was to investigate the influence of endurance training on the plasma concentrations of B vitamins and homocysteine in 23 male adolescent field hockey players. Data collection and blood sampling was performed during the training period and non-training period. Following the training period, significant changes in energy and vitamin B6 intakes were observed in these subjects. Plasma vitamin B2, pyridoxal phosphate (PLP) and homocysteine levels were significantly higher during the training period than non-training period, whereas no difference was observed in plasma folate and vitamin B12 levels. Positive correlation was observed between plasma folate and folic acid intakes. When energy, B vitamin intakes were adjusted there was a significant negative correlation between plasma homocysteine levels and plasma riboflavin, folate and vitamin B12 levels. In conclusion, it is suggested that athletes with oxidative stress by strenuous exercise may need B vitamins since riboflavin, folic acid and vitamin Bl2 were shown to be negatively correlated with plasma homocysteine in athletes during the training period.

• Journal of the Korean Data and Information Science Society
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• v.23 no.6
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• pp.1055-1064
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• 2012

This research was to count and quantify relative importance through analytic hierarchy process on checkups items in order to solve the questions raised by uniformalized numbering in the established athletes self management test. This study has the following results. The relative importance in priority factors of the test is in following order of training management, mental care, body care and interpersonal management. It was also confirmed that relative importance varied according to every checkup item in the lower factors. Consequently, the new result from this study, as an initial research for the relative importance of athletes self management test, supplied the possibility in which the sports-field expert's opinion was reflected. It was expected that this study would be helpful for enhancing athletes' competence in the sports field.

• Journal of the Korea Convergence Society
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• v.9 no.8
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• pp.247-264
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• 2018

The purpose of this study was to establish the concept of self - management in university athletes through two integrated research methods as an open-ended questionnaire and focus group interview. Data collection was conducted with open questionnaire for 157 athletes attending in Seoul Gyeonggi-do university and the 14 university athletes were collected data by focus group interview. Results from a series of research procedures are as follow. First, the result of open-ended questionnaire's inductive content analysis, university athletes' self management included 8 general sectors such as life management, training management, competitive management, emotion management, study management, interpersonal management, goal(motivation) management, equipment management. Second, in the focus group interview results, inductive content analysis was more properly supported, and interviews focused on sports field were deeply derived. The results of this study will be used as a basic data to establish strategies for successful athletes' life and develop to university athletes' self management.

• Journal of the Korean Society of Food Science and Nutrition
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• v.34 no.3
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• pp.366-373
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• 2005

This study was carried out to investigate the self-reported health and eating habit of the elite female adolescent athletes in Incheon. The subjects were 102 elite female athletes of middle and high schools located in Inchon. A self-administered Questionnaire was used for this cross-sectional survey. Statistical analysis by two-way ANOVA was performed to discriminate between the main effects of age (as middle and high school athletes) and sports type, and their interaction. As use of nutritional supplements, 35.8% of the total subjects took vitamin and iron supplements and 62.5% of field and track athletes took vitamin and iron supplements. While mental stress related to exercise was much in fencing ＆gt; shooting ＆gt; field and track ＆gt; swimming athletes, physical burden during training was higher in swimming ＆gt; field and track ＆gt; fencing ＆gt; shooting athletes. More than half of the subjects showed irregular menstrual cycle. As the most severe problem of eating habit, they reported skipping meal ＆gt; overeating ＆gt; prejudiced meal ＆gt; preference to salty and spicy foods. More than half of the subjects skipped meal over three times per week. Fencing and shooting athletes showed very significantly higher frequency of skipping meal and more irregular breakfast time compared to those of other sport types. As for snack, they ate cookies, carbonated drink, chocolate, candy ＆gt; milk, yogurt, ice cream ＆gt; cake, bread, rice cake ＆gt; fried noodle ＆gt; hamburger, pizza. Therefore, nutritional counseling and education by sport type are necessary for health and good eating habit of these elite female adolescent athletes.

• Journal of Fashion Business
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• v.25 no.2
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• pp.127-142
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• 2021

This study aims to organize the prototype design method of compression wear for women professional soccer players. Despite the excellent performance of female soccer players in world competition, most functional wear has been developed mainly for men, so professional female athletes have fewer choices. Soccer is a sport requiring core and lower body muscle strength, and muscular endurance for long periods of playing or walking on the field. Female soccer players did not differ much in upper body compared to other women, but their lower body had a smaller hip circumference than waist circumference and a larger thigh circumference, requiring compilation considering the physical characteristics and movement of athletes. Female soccer players wear sports bras while playing but regular bras and compression wear during normal exercise because they sweat on under their breast, which irritates sensitive skin. For core muscles in the upper body and to support for thigh and hip muscles in the lower body, the uniform in this study was designed by reducing the body size of a professional female soccer player in her 20s and the actual measurements of commercial compilation software to 81% of the chest circumference, 95% of the waist circumference, and 78% of the hip circumference. The design experiment in this study was a simple exercise and did not produce produce results for long-term exercise and performance improvement, but can be used to design a composition pattern system for other professional female athletes.

• The Journal of the Convergence on Culture Technology
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• v.8 no.3
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• pp.331-337
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• 2022

This study is to investigate the effect of Chinese university track and field athletes on their athletic commitment and performance. The men and women aged 19 or older were selected as a population for athletes from Hanam University, Jeongju University, and Hanam Normal University, and 1400 questionnaires were distributed using the Convenience sampling method. The results obtained by performing data processing are as follows. First, all factors had a statistically significant effect on performance in the effect of sub-factors of exercise commitment (cognitive commitment, behavioral commitment). Second, all factors had a statistically significant effect on the performance of the sub-factors of exercise commitment (cognitive commitment, behavioral commitment). Third, all factors had a statistically significant effect on the effect of sub-factors of exercise commitment (cognitive commitment, behavioral commitment) on concentration.

• Journal of Digital Convergence
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• v.15 no.2
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• pp.475-483
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• 2017

Based on the operating system of the advanced school athletic clubs operated to attempt a new paradigm of athletic culture in the field of school athletics, this study aimed to conduct an in-depth analysis of the student athletes' academic level and seek a solution for the stream of the times and integrated change based on a relative minimum academic achievement standard applied by this system. For Analyzing the difference in academic grades between subjects to which the minimum academic achievement standard by the event is applied, one-way ANOVA and MANOVA were used. First, the grade point average (GPA) of the student athletes by the event did not reach the GPA of most general students. Second, it was predicted that in applying a standard, relative to the general students, as academic grades increased, the probability in which the student athletes do not reach the minimum academic achievement standard would increase. Third, it turned out that, even in the phased application of the current minimum academic achievement standard to the GPA of the student athletes by the event, the ratio of the attainment of the minimum academic achievement was similar.

• Journal of the Korea Society of Computer and Information
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• v.26 no.3
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• pp.119-126
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• 2021

The modern pentathlon is an exercise in which people and people compete, as well as exercise without equipment, exercise using equipment, and exercise with animals, and it is an exercise that includes static and dynamic exercise. The ethical issues of modern pentathlon athletes are also related to the poor environment and economic reasons, and the athlete's ethical awareness, attitude, and spirit have a great influence on the athlete's mental environment. In this study, the direction of improvement of ethical problems, which are different as important issues in modern sports, was examined, and qualitative research methods were applied to explore the sports spirit and ethics of the modern pentathlon. Correct sports should not deviate from the intended purpose of the exercise or cause or force the athlete to suffer physical or mental pain. In sports, compensatoryism can be a direct cause of improved performance or record-breaking, but sometimes it can also cause distorted athletes. Air doping has ethical issues that can cause controversy over the health or fairness of athletes, mental and physical damage to athletes, and harm. Responsibilities and ethical issues of athletes who take prohibited substances or leaders or supervisors who neglect or encourage them should be treated as very important matters. In the sports field, the reward system that is subordinate to the athlete's or leader's performance is related to the athlete's or leader's livelihood. For a fair and just game progression, it is necessary to break away from the development of athletes who are only focused on performance. The problem of Unethical issues must be overcome by emphasizing the restoration of ethics that are reasonably recognized in ideology and logic.

• 물리치료
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• s.34
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• pp.2-8
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• 1985

STATISTCAL ANALYSIS OF SPORTS INJURY Seong-Ryul Hong R.P.T. Seoul School Health Center Hospital Upon comings of 1986 Asian Games and 1988 Olympiad in Seoul , Korean people have more enthusiasm for sports than any other time .It's very desirable that student athletes are doing thier best to train skills and to improve records for the coming 2 international sports events .I concluded as followings from the statistical analysis of 159 student athletes about sports injury who had been received Physiotherapy in School Health Center Hospital in Seoul from Jan.8 1982 to Dec,4 1984Track & field is the most common team among school sports team in Seoul.47 Students(30%) were injuried during football game, Career of sports injury: 88 students(55.3 %) were injured for the first time .Location of injury: More than 30% in both sexs were injuried in the Lumbar Frequency in injury in lower limb is higher than that of upper . Frequency of injury in upper right limb and lower left limb are higher than of counterparts6. Diagnosis: 32% of students were diagnosed as lumbago. Treatment period: 42.7% of students were healed within a week and 76.8% within 2 weeks

• Journal of the Korea Academia-Industrial cooperation Society
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• v.19 no.10
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• pp.272-279
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• 2018

This study was conducted to compare the muscle strength, muscle power, and H/Q ratio according to energy system contribution in athletes participating in various sports. Subjects of the study were assigned into an Anaerobic Exercise Group (AEG, n=60; Short-Distance, Weight Lifting, Jumping, Throwing, Bowling, Golf) and an Endurance Exercise Group (EEG, n=60; Modern Pentathlon, Field Hockey, Handball, Cycle, Boxing, Rowing) groups. Isokinetic peak torque/body weight% and flexor/extensor ratio at 60, 180 deg/sec of knee extension and flexion were measured using an cybex 770. Data analysis was conducted using an independent t-test and one-way ANOVA. Based on the results of this study, there was higher extension, flexion strength and flexion power in the AEG than the EEG (p<0.05). We also confirmed higher muscle strength and muscle power in short distance and jumping athletes than other athletes participating in other events (p<0.05). However, there was no significant difference within the endurance exercise group. The HS ratio was within a stable range of 50% to 60% in all events. Collectively, the outcomes of this study indicate that routine physiological and performance testing can provide measurable benefits for elite athletes and their coaches.