학교스포츠클럽 참여가 비만 청소년의 항산화효소, 면역 및 염증지표에 미치는 영향

백창식(Baek, Chang-Sik),손기수(Son, Ki-Su),허유섭(Huh, Yu-Sub),이몽우(Lee, Mong-Woo),김기훈(Kim, Ki-Hoon),권태동(Kwon, Tae-Dong) 한국체육과학회 2015 한국체육과학회지 Vol.24 No.2

In this study, participation in school sports clubs in the 16 weeks was conducted to evaluate the effects on serum antioxidant and immune/inflammatory markers in obese adolescents. For this, normal weight subjects (NSC, n=10) were divided into weight groups and obesity (OSC, n=12). As a result, the following conclusion could be obtained. 1. Participate in school sports clubs 16 weeks body weight and body mass index according to the analysis of the difference between pre and post-measurements were significantly higher in the NSC group showed, after 16 weeks of within-group changes in body weight and body mass index was analyzed OSC was significantly decreased only in the group. 2. 16 weeks to participate in school sports clubs for the analysis of the difference in antioxidant enzymes, SOD and GPX in advance OSC group showed significantly higher levels of between-group differences in the post but there was no significant change within group after 16 weeks as a result of analyzing the two groups were significantly increased in both respectively. In addition, MDA levels were significantly NSC also previously demonstrated a high level but there was no significant difference between groups in the post, after 16 weeks was significantly reduced only in the OSC group, respectively. 3. 16 weeks to participate in school sports clubs differences in the inflammatory and immune indicators analyzed, pre-measured serum CRP levels were significantly higher in group OSC showed levels, but decreased significantly after 16 weeks between the groups there was net difference. WBC and WBC subtype analysis of the distribution ratio of white blood cells after 16 weeks only in group OSC showed a significant increase, neutrophils and lymphocytes did not change before and after. lgM in the between-group difference was not before, but after 16 weeks both groups showed a significant increase. However, the before and after IgG did not differ between groups and within groups. The results are applied in this study of 16 weeks of school sports club weight and body mass index obesity and immune function and antioxidant can effectively improve the means that a good exercise program.

서키트 웨이트 트레이닝이 중학생의 신체조성 및 기초체력에 미치는 영향

백창식(Baek, Chang-Sik),김기훈(Kim, Ki-Hoon),권태동(Kwon, Tae-Dong) 한국체육과학회 2015 한국체육과학회지 Vol.24 No.6

The purpose of this study is to determine the impact of circuit training workout on the body composition and physical fitness of 2nd grade middle school boys (equivalent to 9th graders in US), who are still in growth phase. After categorizing the students, who have volunteered to participate in the study after school, into controlled (workout group) and comparison groups, the 16 students in the controlled group partook in circuit training workout program. Paired t-test, two-way ANOVA, and repeated measure one-way ANOVA were performed on the collected data. As a result, the members in the controlled group displayed significant loss in weight, body fat, body fat percentage and BMI. As for physical fitness, they improved in cardiopulmonary endurance, muscle strength, flexibility and reflex. The result clearly indicated that circuit training workout had statistically significant impact on improving body composition and physical fitness of male middle schoolers. It is highly recommended that schools encourage circuit training workouts during PE classes in order to promote healthy body composition and physical fitness of middle school boys, who are stillin growth phase.

고온 환경에서 반복적인 운동부하가 체온, 온 · 냉감지수 및 운동자각도에 미치는 영향

백창식(Baek, Chang-Sik),김기훈(Kim, Ki-Hoon),권태동(Kwon, Tae-Dong) 한국체육과학회 2016 한국체육과학회지 Vol.25 No.2

This study was carried out to investigate how the repetitive loaded exercise in a hot environment affects the body temperature, thermal sensation and rating of perceived exertion. As a result, the following conclusions were obtained. Changes in body temperature appeared the highest immediately after exercise in both two groups in the mean skin temperature and a significant increase in body temperature was shown in the second exercise compared with the primary exercise(p<.001). Furthermore, it appeared that there is the main effect according to each group and the measuring time(p<.001, p<.05). Temperature of the tympanic membrane showed a significant increase in temperature in both two groups immediately after exercise, and significantly increased in the second exercise compared with the primary exercise(p<.5). In addition, it appeared that there are the main effect and interaction effect between the group and time interval for measurement(p<.001, p<.05). In the changes of thermal sensation and Rating of perceived exertion of the exerciser, thermal sensation significantly increased immediately after the exercise with no difference in both two groups compared with a steady stage, and decreased in the recovery stage again and were restored to normal level(p<.05). Furthermore, appeared that there is only the main effect according to the group(p<.001). The change of Rating of perceived exertion of the exerciser showed a significant increase cumulatively by the measurement time in both two groups(p<.05), and it appeared that there is only the main effect according to the measurement time(p<.001). So, to integrate the result so far, a detailed approach through the application of a variety of thermal environment and exercise methods is to be required for the further study later.

대학 레슬링 선수들의 단기간 체중감량 정도에 따른 신체조성, 스트레스 호르몬 및 뇌활성 변화

백창식(Baek, Chang-Sik),문성연(Moon, Seong-Yeon),권태동(Kwon, Tae-Dong) 한국체육과학회 2016 한국체육과학회지 Vol.25 No.4

This study explores the psychological changes according to the changes of the stress hormone activity in accordance with the short-term weight loss, as well as athletes physiological changes of the central nervous system and weight loss by looking at changes in brain activity simultaneously. This wrestler belonging College(n=14) as a target were each separated by a person of less than 5% weight-loss group (n=7) and at least 5% weight group (n=7) in order. Subjects were treated with short-term weight loss by classical methods such as 1-5 days of high intensity training and dietary restrictions. As a result, the following conclusion could be obtained. As a result, if the short-term excessive weight loss of more than 5% of body weight shows that in addition to the reduction of body weight and fat mass may result in a significant reduction of the lean body mass, such as muscle, it represented a significant change in serum stress hormones and brain activity could. This performances of the contestants players ahead of the game is of course considered to be able to have a negative impact on personal health. But this is more through careful research studies of future results each factor on the fitness level changes or deciding performance factors Analysis will be needed for.

고온 환경에서 반복적인 운동부하가 스트레스 호르몬 및 혈액성분에 미치는 영향

백창식(Baek, Chang-Sik),권태동(Kwon, Tae-Dong) 한국체육과학회 2016 한국체육과학회지 Vol.25 No.6

This study was carried out to investigate how the repetitive loaded exercise in a hot environment affects stress hormones and blood components. As a result, In the change of stress hormones, epinephrine in the blood significantly increased immediately after the exercise in the second exercise group compare with the primary exercise group(p<.05), and significantly increased only in the second exercise group immediately after the exercise compared with the stages of resting and recovery(p<.05), and it appeared that there is only the main effect according to the group(p<.05). In the change of the concentration level of norepinephrine, it appeared significantly high immediately after the exercise in the second exercise in the recovery stage compared with the primary exercise(p<.001, p<.05), and it showed a tendency to significantly increase immediately after the exercise and decrease again in the recovery stage(p<.001). so, it appeared that there is the main effect according to the group(p<.001) and the measurement time each(p<.05). In the change of the concentration level of cortisol, it significantly increased as well immediately after the exercise in the second exercise compared with the primary exercise(p<.05), and significantly increased immediately after the exercise, and decreased again only in the second exercise(p<.05). So, the main effect between the group and the measurement time all appeared(p<.001). In addition, in the change of the concentration level of serotonin, it significantly increased immediately after the exercise in the second exercise compared with the primary exercise(p<.05), and it appeared that it significantly increased immediately after the exercise of all in each group and decreased again in the recovery stage. So, it appeared that there is only the main effect according to the group(p<.05). Meanwhile, it appeared that there is only the interaction effect between the group and measurement time in ACTH(p<.05). In the case of lactic acid in the blood, it significantly increased immediately after the exercise in the second exercise compared with the primary exercise(p<.05), and decreased again in the recovery stage. So, it appeared that there is the main effect according to the measurement time(p<.05). In addition, in the case of ammonia in the blood, it significantly increased immediately after the exercise in the second exercise compared with the primary exercise and decreased in the recovery stage. So, it appeared that there is only the main effect according to the measurement time(p<.05). So, to integrate the result so far, a detailed approach through the application of a variety of thermal environment and exercise methods is to be required for the further study later.