운동유발성 고혈압을 동반한 마라톤주자에서 운동부하검사상 좌심실 비대와 QT 분산 및 혈역학변화에 관한 연구

박순철 ( Shun Zhe Piao ),오재근 ( Jae Keun Oh ),김영주 ( Young Ju Kim ) 한국운동생리학회 2015 운동과학 Vol.24 No.2

METHODS: Total 48 healthy male marathoners (EIH, N=16, Normal Hypertension Group (NG), N=16, Control Group (CON), N=16) were participated in this research. Quinton stress test system was used to measure Left Ventricular Hypertrophy (LVH) and QT dispersion. Graded exercise test was executed by treadmill. RESULTS: LVH in EIH and Normal group (NG) was significantly greater than in Control group (CON) (p <.001, p <.01). Heart rate in EIH and NG during recovery phases (2 min, and 3 min) was more lower than in CON (p <.001, p <.01) and heart rate of EIH at recovery 5 min is lower than in CON (p <.05). The systolic blood pressure at rest, EIH was greater than in NG and CON (p <.05, p <.01). The systolic blood pressure of EIH at maximal, was higher than in the other groups and NG was also greater than in CON (p <.001, p <.001, p <.05). The systolic blood pressure of EIH at recovery 2 was higher than in the other groups and NG was also greater than in CON (p <.01, p <.001, p <.05). At recovery 3 min systolic blood pressure of EIH was higher than in the others and NG was significant greater than in CON (p <.05, p <.001, p <.01). Systolic blood pressure in EIH at recovery 5 min. was higher than in NG and CON (p <.01, p <.001). Cardiopulmonary function in EIH and NG were significantly greater compared to CON (p <.001). QT dispersion of EIH at rest was significantly higher than in CON (p <.05). There were no differences among the groups at recovery phases (2 min, 3 min, and 5 min). CONCLUSIONS: Systolic blood pressure and QT dispersion in EIH show significantly higher value compare to CON at rest. These results indicate that middle-aged male marathoners with EIH have higher cardiovascular risk factors than CON. Further researches will be necessary for identifying an effect of continuous high intensity exercise on cardiovascular system.

622km 울트라 마라톤 주자의 운동중독 성향 분석

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.

냉온 자극에 따른 슬관절의 고유수용성감각 능력의 차이

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.

홍삼과 갈조류 혼합 음료 섭취가 여성 노인의 체력 변인에 미치는 영향

권일수 ( Kwon Il-su ),박득수 ( Park Deuk-su ),박순철 ( Piao Shun-zhe ),오재근 ( Oh Jae-keun ) 한국체육대학교 체육과학연구소 2020 스포츠사이언스 Vol.38 No.1

The purpose of this study is to investigate the effects of red ginseng and brown algae mixed drink intake on fitness in elderly women. The participants were 10 persons for red ginseng/brown algae mixed drink and placebo. After 1week of wash out period from the placebo, the experiment was conducted for red ginseng/brown algae intake by double blind test. The flexibility of the lower limb, muscle strength, agility, balance, muscle endurance, cardiopulmonary endurance, coordination ability were measured. In order to verify the differences, an independent variable t-test was conducted. All statistical significance levels were set at α= .05. The lower limb flexibility (p = .021), right upper limb flexibility (p = .023), balance(p = .023), and cardiorespiratory endurance (p = .015) showed significant differences between groups. There was no significant difference in agility, muscle endurance, and coordination. In conclusion, red ginseng and brown algae intake showed a positive effect on the variables of flexibility, balance, and cardiorespiratory endurance among the elderly women. Further research might be investigated for the wide range of participants, other gender, longer term of intake to secure the effects of the red ginseng and brown algae mixed drinks.

갈조류 추출물 섭취가 사이클 선수의 운동피로회복에 미치는 영향

오재근 ( Oh Jae-keun ),이용우 ( Lee Yong-woo ),김일호 ( Kim Il-ho ),박다운 ( Park Da-woon ),박순철 ( Piao Shun-zhe ) 한국체육대학교 체육과학연구소 2016 스포츠사이언스 Vol.34 No.1

AThis study aims to identify the effects of eclonia cava extract intake to the blood factors that are associated with aerobic capaciThis study aims to identify the effects of eclonia cava extract intake to the blood factors that are associated with aerobic capacity and exercise fatigue of the elite cyclists. To conduct this study, 6 persons of EXP group elite cyclists and 7 persons of PLA group elite cyclists, total 13 elite cyclists from K university were selected. Both eclonia cava extract and placebo groups consumed eclonia cava extract and placebo respectively before 15 minutes before exercise stress test. Exercise stress testing was measured using watt cycle bike pro (Wattbike pro, UK) which is indoor cycle training bike, heart rate was recorded using an electronic heart rate meter (Pola S810, Finland). For exercise fatigue-related factors, Glucose, Lactate acid, Ammonia and LDH were collected and analyzed before exercise, immediately after exercise, 15minutes, 30 minutes, 60 minutes of recovery period total 5 times. To analyze the differences of aerobic capacity between groups according to ingesta, independent t-test was conducted, for heart rate and blood factors , repeated measure ANOVA was performed and LSD(least signigicant difference) was conducted for post verification. All the statistical significance level was set at α=.05. Lactate threshold and VO<sub>2max<sub> differences according to ingesta was not shown between the groups and time * group (p=.737, p=.458). At recovery, there was a significant difference in heart rate at rest and heart rate during exercise between groups(p=.001), but the time * group (p=.440) did not show significant difference. Lactate acid, Ammonia, LDH showed a significant difference in times(p=.001), but no significant difference found in time * group (p=.799, p=.870, p=.150). Glucose is found to have significant differences time and time * group (p=.001, p=.03). Considering from the above results, intake of eclonia cava extract is considered to have a positive impact on the relevant blood factors exercise fatigue, and can be suggested as positive aid measures after a high-intensity cycle match and training resilience and performance improvement.