혈중 Leptin 수준이 여성의 체지방율 감소에 미치는 영향

박호윤 한국스포츠리서치 2003 한국 스포츠 리서치 Vol.14 No.6

The purpose of this study was to investigate the effects of blood leptin level reducing the body fat and BMKbody mass index). The percent body fat of subjects was over 33.30±3.05(%), and their ages were 20.12±1.54(y) in 22 female college students. After aerobic exercise for twelve weeks blood leptin level was significantly decreased 11.89±4.40(㎎/dl) to 7.68±3.36(㎎/dl)(p=0.0001). It is not certain whether the decrease of blood leptin level effected to reduction of the body fat weight or the reduction of the body fat weight effected to the decrease of blood leptin level. However, blood leptin level and body fat weight effected to each other and the weight loss by aerobic exercise for 12 weeks effected the blood leptin level in overweight female. Therefore, the concept can be identified that the blood leptin level made in adipose cells effected to decrease of body weight, percent body fat, and fat weight.

혈중 Leptin 수준이 여성의 체지방률 감소에 미치는 영향

박호윤 한국스포츠리서치 2003 한국 스포츠 리서치 Vol.14 No.6

장기간의 지구력 훈련이 안정시 및 최대운동시 생리적 변인에 미치는 효과

임종호,박호윤 대전대학교 기초과학연구소 1995 自然科學 Vol.6 No.-

생리적 변인에 대한 장기간의 훈련 효과를 알아보았다. 대상은 15세부터 28세까지의 남성으로 지구력 훈련을 장기간 지속적으로 해온 운동 선수 집단(21)과 운동 프로그램에 참여한 경험이 없는 일반인 집단(18)으로 나누었으며, 각각 중학교, 고등학교 및 일반 성인집단으로 세분하였다. 모든 피보험자에 대해 안정시 생리적 변인들을 측정하였고, 최대 산소 섭취량을 측정하기 위해 점증적 탈진 운동에 의한 최대 대사 능력을 알아보았다. 자료의 처리를 위해 two-way ANOVA를 사용하였으며, 연구의 가설 검증에 대한 유의도 수준을 5%로 하였다. 결론적으로, 운동 선수 집단과 일반인 집단의 신체적 조건을 유사하게 고려하더라도 지속적인 장기간 지구력 훈련의 효과는 안정시와 최대 운동시의 생리적 변인에 큰 영향을 미친다고 하겠다. The purpose of this study was to investigate the effect of long-term athletic training on the physiological variables. The sample consists of 21 male athletes and 18 non-athletes. 7 male athletes and 6 non-athletes were selected in the following three respective categories : middle school, high school, and adult(aged 15 to 28 years). The athletes were long distance and marathon runners and non-athletes not participating in athletic program. Rest physiological variables were measured and maximal matabolic capacity by incremental exercise were used to assess maximal oxygen uptake in all subjects. Two-way ANOVA were conducted for the statistical analysis. The 5% level of significance was used as the critical level for acception of hypotheses for this study. On the basis of the results analyzed in the study, the conclusion could be drawn as follows: 1. Rest heart rate and rest systolic blood pressure were significantly lower in athletes than in non-athletes, and adults(marathon runners) lowest. 2. Maximal systolic blood pressure were significantly higher in athletes than in non-athletes, and adults(marathon runners) highest. 3. Maximal oxygen uptake in athletes was significantly higher compared to non-athletes.

소셜 네트워크 서비스를 위한 안드로이드 주소록 어플리케이션의 설계 및 구현

박호윤 ( Ho Youn Park ),문일영 ( Il Young Moon ) 한국항행학회 2011 韓國航行學會論文誌 Vol.15 No.2

지금까지의 모바일 주소록은 단순히 같은 기능만을 제공해왔으며, 현재의 SNS서비스는 새로운 사람과의 만남을 제공하고 기존의 사람들과의 관계를 이어주기는 하지만 직접적으로 사람들 간의 관계를 관리해 주는 역할을 제공하지 못하고 있다. 본 논문에서는 이러한 문제점을 해결하면서 현대인에게 가장 필요한 인맥관리를 제공하는 "SNS 강화 주소록"을 개발하게 되었다. SNS 강화 주소록의 개발목적은 SNS서비스의 발상의 전환으로 인맥관리를 할 수 있는 스마트한 주소록의 개발에 있다. 이 시스템의 구성은 기능별로 초성검색, 기념일 및 생일 알림, UI를 통한 연락빈도, SNS서비스, 주소록 교환으로 이루어져 있으며, SNS서비스를 접목시킨 안드로이드 기반의 모바일 어플리케이션을 가지고 설계 및 구현하였다. Mobile directory has offered just the same function until now, SNS service also has offered for our to meet other people and liaise between person and person. But it has a important thing which can not offer direct to liaise between person and person. In this paper, we has developed the "SNS Consolidation Directory" for solve the problem which needs to modern people with. A main purpose of SNS Consolidation Directory will develop the smart directory which offer to improve SNS service and personal relation supervision. This system function has initial search, anniversary, birthday alarm, using the UI contact frequency, SNS service and directory exchange.

심초음파를 이용한 최대산소섭취량 예측에 관한 연구

박호윤(Ho Yoon Park) 한국사회체육학회 2002 한국사회체육학회지 Vol.18 No.2

The purpose of this study was to prediction of the maximal oxygen uptake by using echocardiography. The sample consists of 18 male athletes and 18 non-athletes. The athletes were long distance and marathon runners, and non-athletes were not participating in any athletic program. Rest echocardiography was used to measure left ventricular variables(LVIDd, LVIDs, PWT, SWT) and maximal matabolic capacity by incremental exhaustion exercise were used to assess maximal oxygen uptake in all subjects. Two-way ANOVA, simple regression analysis, and multiple regression analysis were conducted for the statistical analysis. On the basis of the results analyzed in the study, the conclusion could be drawn as follows : 1. Maximal oxygen uptake in athletes was significantly higher compared to non-athletes, and rest echocardio- graphically measured left ventricular variables(LVIDd, LVIDs, PWT, SWT, LVEDV, LVESV, SV, LVM) were higher in athletes and adults. 2. Using Simple regressions analysis, R-squares to explain maximal oxygen uptake as left ventricular variables were higher in athletes than in non-athletes. 3. By using multiple regression analysis formula for athletes was Y=-1.950720+0.081399 LVIDd-0.263412 PWT+0.444841 SWT(r^2=42.74%) and formula for non-athletes was Y=-6.333901+0.116192 LVIDd-0.443447 SWT(r^2=61.88%). In conclusion, the effects of sustained long-term endurance training caused to changes of the heart size in rest and maximal exercise, and there was closely relationship between heart size and maximal oxygen uptake. Thus echocardiographic study could be applied to sport medicine field as the indirect method to obtain the maximal oxygen uptake.

뇌허혈 후의 트레드밀 운동 시점이 해마 치상회에서 신경세포 사멸과 신경세포 생성에 미치는 영향

정용락,박호윤,임용택,신말순,김성수,송분도,김창주,김상호,하상효 한국코칭능력개발원 2006 코칭능력개발지 Vol.8 No.1

In the present study, we investigated the temporal-dependence of the effect of treadmill exercise on short-term memory, neuronal cell death, and cell proliferation in the hippocampal dentate gyrus following transient global ischemia in gerbils. Transient global ischemia impaired short-term memory function and increased apoptotic neuronal cell death and cell proliferation in the hippocampal dentate gyrus in gerbils. Treadmill exercise for 7 days improved ischemia-induced short-term memory and suppressed ischemia-induced increase in apoptosis and cell proliferation in gerbils. The most potent protective effect of treadmill exercise on ischemia-induced apoptosis was observed when started treadmill exercise at 24 h after ischemic insult. Here, we have shown that treadmill exercise alleviates ischemia-induced short-term memory impairment by suppressing apoptotic neuronal cell death in the hippocampus.

마라톤 런너의 장기간 지구력 훈련에 따른 심초음파 변인의 변화 양상

이강우,박호윤 안성산업대학교 2000 論文集 Vol.32 No.-

In that of the structural and functional changes of the heart size is a positive feedback result from diverse training, this study examined the heart size of marathon runners to ascertain the effects of endurance training by m-mode echocardiography. The sample consists of 7 male marathon runners and 6 non-athletes who were not participating in any athletic program, and rest echocardiography was used to measure left ventricular variables. The results ould be drawn as follows: There are significant differences in left ventricular internal end-diastolic diameter(LVIDd), post wall thickness(PWT), septal wall thickness(SWT), left ventricular end-diastolic volume(LVEDV), stroke volume(SV), and left ventricular mass(LVM) between athletes group and sedentary group, but not in left ventricular internal end-systolic diameter(LVIDs) and left ventricular end-systolic volume(LVEDV). In general, previous studies indicated that left ventricular volumic hypertrophy is caused by long-term intense endurance training, and the hypertrophy of left ventricular posterior wall thickness, in contrast, is caused by intense power training. However, long-term intense endurance training can cause the hypertrophy of left ventricular posterior wall thickness in a degree. As a result, he increase in the values of cardiac variables means the change of heart size, and this structural and functional adaptations of the heart suggest that the long-term effect of endurance training is positive feedback.

테니스 포핸드 스트로크의 수행력 향상을 위한 웨이트 트레이닝 프로그램 주기화 모형

한종우,박호윤,임용택,강선영,이상기 한국코칭능력개발원 2001 코칭능력개발지 Vol.3 No.1

열환경 운동시 수분 섭취조건에 따른 생리학적 변화(혈장전해질, 삼투질, 삼투질 농도, renin activity, aldosterone을 중심으로)

심성수,징일규,박호윤 대한스포츠의학회 1988 대한스포츠의학회지 Vol.6 No.1

생활체육 참여기간이 최대운동능력과 유산소운동시 생리학적 변인에 미치는 영향

김성수,김양수,정일규,서수진,박호윤 대한스포츠의학회 1993 대한스포츠의학회지 Vol.11 No.1

The study was designed to examine the physical fitness of civilians participated with sports for all whether the maximal exercise capacity and physiological factors in aerobic exercise was constant or not. Subjects were divided three groups by the practicing career into exercise 1, exercise 2, exercise 3, Exercise test was used to incremental load methods by erogometer test for maximal exercise capacity and 60% V˙O_2max in aerobic exercise. Results of test to elucidate physiological variance during the maximal test and aerobic exercise in 60% V˙O_2max was as follows : 1. V˙O_2max was not significantly different among exercise groups in maximal test. Total anaerobic threshold measured by ventilation and oxygen uptake ratio was 68.6% V˙O_2max. 2. Ventilation and oxygen uptake were varied into 5% V˙O_2max during the aerobic exercise. 3. Heart rate was increased significantly during the aerobic exercise along time course, but among exercise groups were not differenct. 4. O_2 pulse in Exercise 3 was higher than that of others and constant during the aerobic exercise. 5. Lactate concentration during the aerobic exercise was lower 1 mmol/1 in Exercise 3 group than that of Exercise 2 or Exercise 3. Lactate peak values was showed 6.4 mmol/l in Exer, 1, 6.2 mmol/l. in Exer. 2, 5.5 mmol/l in Exer. 3 at 20 minutes. In conclusion, participating Sports for all per 2 times everyweeks was solved hypokinetic symptom and contributed to increase physical fitness.