MXenes-Creating a Value Chain

변재종 한국공업화학회 2023 한국공업화학회 연구논문 초록집 Vol.2023 No.0

신체활동 참여가 노인의 주관적 건강지수에 미치는 영향

변재종 우송대학교 2003 우송대학교 논문집 Vol.8 No.-

This study was designed to investigate the effect of exercise participates on health profiles of the older adults in nursing home. The subjects for this study were seventy two(male: 25, female: 47) healthy elderly people who were the members of seniors' tower in song-do hospital, didn't have any problems in participating in this study exercise program. The subjects were divided into four groups: GroupⅠ participated in exercise program daily(N=19), GroupⅡ participated in exercise program 2 or 3 times a week(N=19), GroupfⅢ participated in exercise program once a week(N=19) and GroupⅣ never participated in exercise program(N=15). Three groups have been trained for 6 months. The exercise program for three groups was made up of warm-up, work-out, and cool-down. Stretching was performed every ten minutes for the prevention of injuries which could occur during the main exercise and quick recovery of the used muscle. Aerobic training was performed for 20-40 minute respectively using the treadmill and cycle ergometer at the intensity of 60% VO₂max. The resistance weight training was performed 10times repeatedly(12-15RM) by 2 sets using the leg press, leg extension, leg curl, back extension, abdominal flexion, and torso. One repetition maximum(1RM) of each person was measured prior to the training performance. All the measured data were represented by mean(M) and standard deviation(SD) using version 6.12 SAS package. The statistical techniques for health profile data analysis were two way ANOVA to analyze the difference among groups. And then I performed one way ANOVA for examing the difference among groups about the variables which showed the difference. The 5% level of significance was used as the critical level for acceptance of hypotheses for the study. The following results were obtained from this study. The comparison of health profile's variables after participating in the exercise program. In health profiles's variables, the social isolation level and physical mobility level of Group I were higher than the other three groups.

남자 아동의 혈중 글루코스 농도가 뼈의 성장 및 근기능에 미치는 영향

변재종,이재현 한국사회체육학회 2014 한국사회체육학회지 Vol.0 No.57

This study examined the effect of fasting blood glucose on bone growth and muscular fitness in 25boys(9.7~13.9 years). The state of bone growth was evaluated by relative height(RH), bone mineraldensity(BMD) and bone age. BMD was measured by dual energy x-rya absorptiometry and bone age byTanner Whitehouse 3. The results of partial correlation controleld with age showed negative correlation betweenblood glucose and RH, BMD and muscular strength and posivte one between blood glucose andCMB(chronological age - bone age). The relationships between bolod glucose and arm BMD and strengthwere not significant after regression analysis. The comparisonb etween high blood glucose group(HGG) andnormal one(NGG) showed HGG has lower pelvic and spine BMD thanN GG. In conclusion, boys with highfasting blood glucose seem to show unfavorable bone growth.

운동이 발작 유도 쥐의 해마에서 TNF-α 및 IL-6의 발현에 미치는 영향

변재종,김후년,이삼준 한국스포츠학회 2018 한국스포츠학회지 Vol.16 No.4

In this study, the protective effects of pre-training on changes in the expression of cytokine in hippocampus were investigated. Using white male rats of Sprague-Dawley(SD), three large groups were divided into three groups (Con; control/Saline, KA; control/kainic acid, KE; exercise/kainic acid). After two weeks of environmental adaptation, KE groups were performed exercise of lower intensity by treadmill. All groups were injected with saline and KA, respectively, and after 24 hours of observation, they were sacrificed for analysis. The results showed that, for KA groups, the number of tumor necrosis factor-α (TNF-α) and interleukin-6 (IL-6) expressions increased significantly in hippocampus, but significantly reversed in KE group. Collectively, epilepsy through KA showed expression of inflammatory cytokines were increased in the hippocampus, but through previous training, these reactions were suppressed and were able to confirm the role of neuro-protective effector. 간질은 발작을 포함하며 해마에서의 기능적 저하를 동반한 신경학적 질환으로 알려져 있다. 이미 운동은 다양한 연구들을 통해 개선적 효과를 보인만큼 사전 트레이닝을 통한 보호적 효과 또한 요구되고 있다. 본 연구에서 간질성 발작에 따른 해마의 사이토카인 발현 변화에 대해 사전 트레이닝의 보호적 효과를 규명하고자 실시되었다. Sprague-Dawley (SD) 흰쥐(수컷) 24마리를 이용하여 크게 세 집단(Con; contrl/saline, KA; control/kainic acid, KE; exercise /kainic acid)으로 구분하였으며, 2주간의 환경적응 후 KE 집단을 대상으로 트레드밀을 이용한 저강도의 트레이닝을 실시하였다(6주, 5회/주, 30분/회). 운동 종료 2일 후 모든 집단을 대상으로 Saline 및 KA를 각각 주입하였으며 24시간 관찰 후 희생하여 분석하였다. 실험결과, KA 집단의 경우 Con 집단에 비해 해마에서 tumor necrosis factor-α(TNF-α) 및 interleukin-6(IL-6)의 발현이 유의하게 증가한 것으로 나타났지만, 사전 트레이닝을 실시한 KE 집단에서 유의하게 낮아진 것으로 나타났다. 종합해 볼 때, KA를 통한 간질성 발작은 해마에서의 염증성 사이토카인 발현을 증가시키는 것으로 나타났지만, 사전 트레이닝을 통해 이 같은 반응은 억제되는 것으로 나타나 운동이 신경보호적 역할을 수행하는 것을 확인할 수 있었다.

정기적 스포츠활동 참여에 따른 정신지체아의 운동기능 및 사회성 발달

변재종 우송대학교 2004 우송대학교 논문집 Vol.9 No.-

The purpose of this study was to find out the effects of participation in collective sport programs on development of social adaptive behavior of mentally retarded students. The subjects were 25 mentally retarded students of junior school for special education. KISE Developmental Scale(1996) by Korean Institute for Special Education were administered by specialized teachers of the students. The satistical procedures used to analyze the hypothese were paired t-test. The major findings of this study were that mentally retarded students who regularly participated in sport activities had significantly higher level of the development of self-support abillity, social-emotional behavior, speech abillity, cognitive abillity, gross & fine motor skill rather than non-participated. It could be concluded in this study that sport activities had signficant effects on the development of social adaptive behaviors of mentally retarded adolescents.

노인 건강관리 전문 트레이너 양성을 위한 교육과정 개발

변재종 한국코칭능력개발원 2008 코칭능력개발지 Vol.10 No.3

The purpose of this study is to develop the specified education course for our situation by analyzing home and abroad tendency and curriculum in order to train sports health care provider for the aged in the rapid process of aging society. In order for this, questionnaire and consultation was done with the professionals such as professor, doctor, researcher, exercise specialist; trainer who work for hospital(5), national fitness center; health center(3), senior welfare center(2), Korea institute of sports science, sports center(14), university(10) that are equipped with expertise. In result, the professional is not enough for sports health care in elderly. In order for training the professionals for health management for senior, we presented the specified health management for senior curriculum that specified 3 subjects(Growth and aging, Theory of senior health, Therapeutic recreation) from the current education course as specialized sports management course for elderly, and stressed nutritive and newly organized 6 subjects, exercise physiology, nutrition, life cycle nutririon, health program for elderly, pathophysiology for elderly , senior physical testing.

장기간의 요가운동이 고령 여성의 낙상 관련 체력에 미치는 영향

변재종(Byun, Jae-Jong),황부근(Hwang, Boo-Geun) 한국사회체육학회 2016 한국사회체육학회지 Vol.0 No.66

The purpose of this study is to investigate the effect of yoga exercise program on fall-related physical fitness in elderly women. Subjects for study were 15 elderly women with an age range of 75 to 89 years. Balance(OLS, TUG), flexibility(hip joint ROM, ankle ROM), lower strength(knee extensor/flexor strength, CST were investigated before and mid(after 3 months) and after 9 months yoga exercise program(60min/day, 2 day/week, for 9 months). All data were analyzed by ANOVA with repeated measures of SPSS. The results showed that significant increase were found for OLS(p<.01, p<.001), hip joint(p<.001, p<.05), ankle ROM(p<.001, p<.01), knee extensor(p<.05, p<.001), knee flexor(p<.001, p<.001), CST(p<.001) after 9 months yoga training. But there was no significant difference after 3 months yoga training in all variables except CST. Therefore, we recommend that a yoga exercise program in elderly women is a useful intervention to falls-related physical fitness, but further long-term program is required.

진동 운동이 노인 신체 기능에 미치는 영향에 관한 고찰

변재종(Jae?Jong Byun),이경진(Kyung-Jin Lee) 한국코칭능력개발원 2009 코칭능력개발지 Vol.11 No.4

공동거주노인의 생리적 변인과 건강지수의 상관관계에 관한 연구

변재종(Byeon Jae Jong),이창규(Lee Chang Gyu) 한국사회체육학회 2003 한국사회체육학회지 Vol.20 No.2

This study was designed to investigate the correlation between physiological variables and health profiles of the older adults in nursing home. The subjects for this study were seventy two(male:25, female:47) healthy elderly people who were the members of seniors` tower in song-do hospital, didn`t have any problems in participating in this study exercise program. All the measured data were represented by mean(M) and standard deviation(SD) using version 6.12 SAS package. The pearson correlation method to determine the correlation coefficients between physiological variables and Nottingum health profiles. The 5% level of significance was used as the critical level for acceptance of hypotheses for the study. The following results were obtained from this study. 1) The energy level showed significant positive correlation with VO2max, maximal heart rate, and knee muscular function. 2) The pain level showed significant negative correlation with WHR, but showed positive correlation with VO2max, maximal heart rate, exercise time, and right knee muscular function. 3) The social isolation level showed significant positive correlation with the maximal heart rate. 4) The emotion level did not show significant correlation with the physiological variables. 5) The physical mobility level showed significant negative correlation with WHR, but positive correlation with VO2max, maximal heart rate, knee muscular function, and trunk muscular function. 6) The sleep level showed significant negative correlation with %body fat, but showed positive correlation with the lean mass. 7) The sum of Nottingum health profiles showed significant negative correlation with WHR, but positive correlation with VO2max, maximal heart rate, and right knee extensor muscle. But the correlation coefficents of all variables were low. In conclusion, physiological factors and physiological dimensions(energy, physiological mobility, sleep, and pain) are correlated.

젊은 남자 성인의 신체활동 수준이 심박변이도 및 심박수 회복율에 미치는 영향

변재종(Byun, Jae-Jong),황부근(Hwang, Boo-Geun),이재현(Lee, Jae-Hyun) 한국사회체육학회 2016 한국사회체육학회지 Vol.0 No.66

This study evaluated the effect of physical activity (PA) on heart rate variability (HRV) and the rate of heart rate recovery (HRR) in 20~29 year-old male adults (n=30). Physical activities were measured by the accelerometer and HRR was recorded in every 30 seconds for 5 minutes after maximal exercise. HRV was measured while subjects were in resting state for 5 minutes. There was no significant correlation between PA variables and HRV but positive correlation between time spent on vigorous PA and HRR at 30s 240s, 270s, 300s after maximal exercise. Regression models with time spent on vigorous PA as independent variables explained 10.2~15% of HRR. The comparison of HRV and HRR between high-PA group (HPA) and low-PA group (LPA) showed that HRR30s of HPA was significantly higher than those of LPA. In conclusion, it seems that PA, especially time spent on vigorous activity affects HRR, but not HRV in young male adults.