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오재근 ( Jae-keun Oh ),박순철 ( Shun-zhe Piao ),박다운 ( Da-woon Park ),송기재 ( Ki-jae Song ) 한국체육대학교 체육과학연구소 2017 스포츠사이언스 Vol.34 No.2
The study was to observed the exercise addiction and the psychological condition of participants(N=50) in the 622 marathon event, which belonged to Korea Ultra Marathon Federation. The questionnaire consists of withdrawal, conflict, attachment, tolerance, and compulsiveness and total 18 questions. The survey results were divided into age, experience, frequency, and time, and T-tested using by windows SPSS PC 21.0 statistics analysis program.. The results are as follows. 1. There was no significant difference in the amount of withdrawal, conflict, attachment, tolerance and compulsiveness and all factors caused by age. 2. There was no significant difference in the amount of withdrawal, conflict, attachment, tolerance and compulsiveness and all factors caused by athletic career. 3. There were no significant differences in the amount of withdrawal, conflict, tolerance and compulsiveness caused by exercise frequency. However, the attachment of participated in the attendance of four or more, and the difference in the number of participants was greater than 4 times(p =.011). 4. There was no significant difference in the amount of exclusion, conflict, attachment, tolerance and compulsiveness and all factors caused by exercise time.
오재근 ( Jae-keun Oh ),강성우 ( Sung-woo Kang ),박순철 ( Shun-zhe Piao ) 한국체육대학교 체육과학연구소 2016 스포츠사이언스 Vol.33 No.2
The purpose of this study is to investigate the effects of joint temperature change to the proprioceptive capabilities and to provide the baseline data for cro-therapy and thermo therapy. 16 healthy males were randomly selected (24.43±3.11 yr, 172.26±5.13 cm, 68.86±7.36 kg, 14.80±4.52 %BF). Cryotherapy with 1kg of broken ice bag, thermotherapy with hot pack to knee joint applied for 15 minutes respectively. Knee joint active and passive proprioceptive sensory measurement was performed using an isokinetic equipment CSMi (HUMAC , USA) , the movable range was set to 0° ~ 90° , the target to stop the movement for 5 second s at each 45° and 15° to recognize the subject to reproduce after each goal . Static balance measurements were measured with eyes closed and one leg standing , dynamic balance measurement was measured with Biodex Balance System (Biodex, U.S.A) by dividing the Stage-12, Stage-6, Stage-1 in three steps. All data of this research were analyzed by SPSS/PC ver 21.0 and. repeated measure ANOVA was used to compare the difference between the treatment methods. Post-hoc was conducted by LSD the significance level score was set as α=.05. The results through this process are as followed. Stage-1 overall stability in thermotherapy(3.88±2.03) was significantly lower than in no therapy(5.28±3.06)(p<.05). Stage-1 anterior and posterior stability in cryotherapy(3.05±1.52) and thermotherapy(2.71±1.43) were significantly lower than in no therapy(4.23±2.52)(p<.05, p<.01). Stage-1 medial and lateral stability in cryotherapy(2.32±1.09) and thermotherapy(2.26±1.22) were significantly lower than in no therapy(2.92±1.48)(p<.05, p<.05). According to the result of this study, cryotherapy and thermotherapy are considered to affect the proprioceptive sense. In the future study, experiments against additional number of subjects required to be conducted to ensure the effects of cryotherapy and thermotherapy.
감태(甘苔)에서 추출한 Dieckol 성분이 쥐의 인지능력에 미치는 영향
오재근 ( Jae Keun Oh ),송기재 ( Ki Jae Song ),지무엽 ( Mu Yeop Ji ),윤진호 ( Jin Ho Yoon ) 대한본초학회 2014 大韓本草學會誌 Vol.29 No.6
Objectives : The purpose of this study aimed to investigate that dieckol - isolated from Ecklonia cava - supplementation can improve cognitive ability in mice. Methods : 48-male mice(6 weeks old) were divided into four groups; High-Dieckol group(n=12), Low-Dieckol group(n=12), Placebo group(n=12), Control group(n=12) and they were administered orally 5 days per week for 4 weeks at the same time. We performed Morris water maze test, Passive avoidance test, Blood serotonin analysis. And there was examined on neurogenesis in dentate gyrus of hippocampus using 5-bromo-2`-deoxyuridine (BrdU) to label proliferating cells. Results : The results are as follows; As a Morris water maze results, Trial duration was significantly decreased in high dieckol group comparing to placebo group and control group. Distance to target was significantly decreased in high dieckol group and low dieckol group comparing to placebo group and control group. Mean speed was significantly low in high dieckol group comparing to low dieckol group, placebo group and control group. As a Passive avoidance test results, latency time was significantly long in high dieckol group comparing to low dieckol group, placebo group and control group. BrdU cell count was significantly high in high dieckol group comparing to low dieckol group, placebo group and control group. Conclusions : As a conclusion, it is considered that dieckol supplementation might improve learning and cognitive ability.