The Impact of HIIT Program on Self-control and Attention in Middle School Boys

Chai, Ji Young(최지영),Kim, Kyeong Lae(김경래),An, Min Ji(안민지) 학습자중심교과교육학회 2019 학습자중심교과교육연구 Vol.19 No.23

이 연구는 HIIT 프로그램이 남자 중학생의 자기통제력과 주의집중력에 어떠한 영향을 미치는지를 규명하여, 효율적인 HIIT 프로그램 개발에 필요한 기초 자료를 제공하는데 목적이 있다. 연구 참여자는 J도 H군 소재 H중학교 3학년 남학생 22명으로, 실험집단과 통제집단에 각각 11명씩 무선 배정하였다. HIIT 프로그램은 주 3회 20분씩, 8주 동안 수행하였으며, SPSS 통계 프로그램을 활용하여 t-test를 실시하여 집단 내 및 집단 간 차이를 분석하였다. 8주간 HIIT 프로그램 적용 후 실험집단 내 전‧후 비교에서 자기통제력 하위 6가지 항목 중 충동성, 모험추구, 자기중심, 화 기질 4가지 항목에서 유의차가 나타났다. 집단 간 사후 비교에서는 충동성과 화 기질 2가지 항목에서 유의차가 나타났다. 집단 내 사전·사후 주의집중력 변화에서는 실험집단에서 선택적 주의력, 지속적 주의력은 통계적으로 유의한 차이가 나타났고, 자기통제력/분산주의력은 통계적으로 유의한 차이가 나타나지 않았다. 실험 후 집단 간 비교에서는 모든 변인에서 통계적으로 유의한 차이가 나타나지 않았다. This study was to analyze the influence of HIIT on self-control and attention in middle school boys. The participants of This study were 22 3rd grade male students at H middle school. They were divided into 2 groups randomly(Exercise Group-EG:11, Control Group-CG: 11). The program was performed for 20 minutes, 3 times each week for 8 weeks from April to June in 2017. The t-test was used to analyze the differences within and between two groups. After 8 weeks, there were significant differences statistically in impulsiveness, adventure seeking, self-centering, anger temperament(self-control). There was significant difference between two groups in impulsiveness and anger temperament. In the changes of attention before and after the experiment, there was significant difference statistically in selective attention and sustained attention but there was no difference in self-control/distributed attention of EG. There was no significant difference statistically between two groups after the experiment.

Effects of Unicycle Exercise on Health Related Fitness and Physical Self-efficacy in male Middle School Students

우성진(Sung-Jin Woo),김경래(Kyeong-Lae Kim),안민지(Min-Ji An),고덕주(Deok-Ju Ko) 한국교원대학교 뇌기반교육연구소 2019 Brain, Digital, & Learning Vol.9 No.4

The purpose of this study is to provide basic data necessary for development of a variety of unicycle exercise programs, during physical activities at school by identifying the effects of 12 weeks unicycle exercise on health - related fitness and physical self-efficacy of male students in middle school. To achieve the purpose of this study, health related fitness and physical self-efficacy were measured among 12 male students in the second grade of H Middle School in C, South Chungcheong Province, by separating them into an exercise group and a control group. The data obtained in this study were analyzed using the SPSS 21.0 statistical program and Two-way repeated ANOVA was used to examine the interaction effect in each variable. The conclusions obtained from this study are as follows. First, there were significant differences for muscular endurance and cardiovascular endurance in interaction effect, muscular strength during the period of time, and cardiovascular endurance for the group as a result of repeated measures of health related fitness factors. The results show that there was a significant difference in the confidence of physical self-expression in interaction effect, and difference in perceived physical ability and confidence of physical self-expression during the period.

스텝박스 운동이 비만 여중생의 건강 관련 체력, 골밀도 및 신체적 자기개념에 미치는 영향

이성준(Seong-Joon Lee),안민지(Min-Ji An),김경래(Kyeong-Lae Kim) 한국교원대학교 뇌기반교육연구소 2019 Brain, Digital, & Learning Vol.9 No.4

The purpose of this study is to provide basic data necessary for the development of an exercise program for the prevention and management of obese female students at school by investigating the effect of the participation in Step Box Exercise for 12 weeks on the Health Related Fitness, Bone Mineral Density and Physical self-concept of obese female middle school students. In order to accomplish the purpose of this study, 24 1st and 2nd grade obese female students at H Middle School located in C City, Chungcheongnam-do, were selected at random and the allocated 10 students each for the exercise group and comparison group and measured Health Related Fitness, Bone Mineral Density and Physical self-concept before and after the participation in Step Box Exercise. The data obtained from this study were analyzed using the SPSS 20.0 statistical program and Two-way repeated ANOVA was used to measure the interaction effect of each variable. The conclusions obtained through this study are as follows. First, flexibility showed significant differences in group, cardiovascular endurance showed significant differences in timing, and muscle endurance, cardiovascular endurance, body fat percentage showed interaction effects in the group and time. Second, in Bone Mineral Density, there was improvement of average value in exercise group, but no significant difference in group, timing and interaction effects. Third, in physical self-concept, health, physical activity, self-esteem and endurance showed significant differences in group, body fat, physical activity, self esteem, body overall showed significant differences in timing, and sports competence, body fat, health, physical activity, self esteem, endurance, body overall showed interaction effects in the group and time.

Effects of Barefoot Walking Exercise on Female Hormone, Brain Nerve Growth Factors and Immunoglobulins in Postmenopausal Women

호은석(Eun-Seok Ho),안민지(Min-Ji An)김경래(Kyeong-Lae Kim) 한국교원대학교 뇌기반교육연구소 2021 Brain, Digital, & Learning Vol.11 No.4

This study investigate the effects of a 12-week barefoot walking exercise on female hormone, brain nerve growth factors and immunoglobulins in postmenopausal women. It aimed to provide the fundamental data for developing an effective exercise program to help postmenopausal women maintain a physically, psychologically, and socially healthy life in senescence. Postmenopausal women in C-city, Chungcheongbuk-do, were recruited and randomized between the barefoot walking group(n=11) and the shoes walking group(n=11) for subsequent analyses. The walking exercise program consisted of three 60-minute sessions per week for 12 weeks. The levels of estrogen, brain nerve growth factors and immunoglobulins were measured before and after the exercise. Two-way repeated measure ANOVA was performed to analyze the before-after difference between the barefoot walking group and the shoes walking group. The results acquired from this study are as follows. First, the estrogen levels during the 12-week walking exercise intervention were not influenced by the group or duration. However, the duration of the exercise significantly affected the barefoot walking group. Second, the brain nerve growth factors, namely, brain-derived neurotrophic factor(BDNF), insulin-like growth factor-I(IGF-I) and vascular endothelial growth factor(VEGF) were not significantly influenced by the group or duration during the 12-week exercise intervention. However, the barefoot and shoes groups significantly affected BDNF and VEGF. The duration of the exercise did not affect IGF-I in both groups. Third, IgG was significantly influenced by the group and duration during the 12-week exercise intervention. However, IgA and IgM were not significantly affected by the exercise group or duration. Exercise duration significantly affected the IgG of the shoes walking group and IgM of the barefoot walking group.

태극권 운동이 여성 노인의 일상 체력과 면역 기능에 미치는 영향

장징이 ( Jing-yi Zhang ),김경래 ( Kyeong-lae Kim ),서한교 ( Han-kyo Seo ),안민지 ( Min-ji An ) 한국리듬운동학회 2019 한국리듬운동학회지 Vol.12 No.1

The purpose of this study was to provide basic data necessary for development of TaiChi exercise program and to provide basic data for the health maintenance of the elderly women by analyzing the effects of 18weeks TaiChi on physical fitness and immune functions of elderly women. 30 female subjects were randomly assigned to 2 groups, i.e., TaiChi exercise training group 15, control group 15. Informed consent was obtained from all subjects before enrollment into this study. All subjects participated in pre-test and post-test, that is., physical fitness test(muscle strength, muscular endurance, cardiovascular endurance, range of motion and balance), and immune functions test(IL-2, IFN-γ, IgM, IgA and IgG). Exercise training was performed 5 times per week, for 60minutes each time, for 18 weeks. A paired-sample t-test and an independent-sample t-test were conducted with the SPSS Ver. 23.0 statistic program to test of physical fitness and immune functions and differences in changes between the groups before and after exercise. The results of this study were as follows. Firts, in the changes of physical fitness variables after 18 weeks exercise training, there improved significantly of cardiovascular endurance, range of motion and balance in elderly women. Exercise group revealed exhibited significant differences statistically, but control group showed few changes during the experiment. Second, in the changes of immune functions variables after 18 weeks exercise training, there increased significantly of IFN-γ, IgA, IgG. Exercise group revealed exhibited significant differences statistically, but control group showed few changes during the experiment. In conclusion, TaiChi exercise program for 18 weeks improved in physical fitness in elderly women and positively affected immune functions-related cytokine and immunoglobulin.

저항성 운동이 제2형 당뇨쥐의 심근 내 염증 인자와 ERK1/2 발현에 미치는 영향

김문주 ( Moon-ju Kim ),김경래 ( Kyeong-lae Kim ),안민지 ( Min-ji An ) 한국운동생리학회 2021 운동과학 Vol.30 No.3

PURPOSE: The purpose of this study was to investigate the effect of resistance ladder exercise on myocardial inflammatory cytokines and extracellular signal regulated kinase (ERK)1/2 expression in type 2 diabetic rats. METHODS: A total of 21 8-week-old male Long Evans Tokushima Otsuka (LETO) and Otsuka Long Evans Tokushima Fatty (OLETF) rats were divided into three groups: LETO group (CON, n=7), OLETF group (DM, n=7), and resistance exercise group (DM+EXE, n=7). Resistance exercise referred to a climbing exercise on a slope. The rats performed this exercise 3 full d per week, for 8 week. The expression of myocardial inflammatory cytokines and ERK1/2 was analyzed via western blotting after 8 week of exercise intervention. RESULTS: After 8 weeks of resistance exercise for the management of type 2 diabetes, the production of anti-inflammatory factor Interleukin (IL)-10 in the myocardium increased. This inhibited the production of pro-inflammatory factors IL-6 and tumor necrosis factor-alpha. However, resistance exercise did not affect the expression of ERK1 and ERK2, which are apoptosis regulatory proteins. CONCLUSIONS: In type 2 diabetes, resistance exercise is thought to be effective in reducing inflammatory factors by mediating cytokines. Although the effects of resistance ladder exercise were confirmed, further studies on a variety of exercise types and intensities should be conducted to prevent and improve the conditions of those with diabetes.