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RISS 인기검색어
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- 저자 : 어은실(EunShilEo) (검색결과 3 건)
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황수관(SooKwanHwang),어은실(EunShilEo),최건식(KunSikChoi),송혜진(HyeJinSong),김덕원(DeokWonKim) 한국체육학회 1992 한국체육학회지 Vol.31 No.2
임피던스 심장기록법을 이용하여 심박출량을 측정한 연구는 다수 있었으나, 운동중에는 임피던스 심장기록법을 이용한 연구는 거의 없는 실정이다. 이는 달리기와 같이 신체의 움직임으로 인해 생기는 motion artifact 때문에 심박줄량의 측정이 어렵기 때문이다. 그래서 운동중 임피던스 심장기록법의 개발이 절실히 요구되었다. 따라서, 본 연구는 임피던스 심장기록법을 개발하여, 운동중에 심박출량을 측정함으로써 운동중에 심장기능이 어떻게 변화하는지 알아보는데 그 목적을 두었다. 새로 개발한 임피던스 심장기록법은 다음과 같다.피부와의 견고한 접촉과 땀흡수를 위해 원통형의 청동망 전극 속에 탄력밴드를 삽입하였으며, 트레드밀 상에서 운동중에 생기는 충격을 흡수하기 위해 실리콘 고무와 스폰지를 운동화 밑창에 부착 시켰다.동시에 motion artifact를 최소화시키고, 더 정확한 측정결과를 얻기 위해 앙상블 평균법을 개발하여 사용하였다.위의 방법을 이용하여 선수군과 비선수군간에 심장기능의 차이점을 알아 보기 위해 심박수, 일회박출량, 심박출량과 운동중 좌심실 수축간격인 좌심실 구혈시간을 구했다.운동중 선수군의 심박수는 비선수군에 비해 운동중과 운동후에 계속해서 유의하게 낮은 값을 보였으며, 운동후에는 더 빨리 감소하였다.선수군의 일회 박출량은 운동전, 운동중, 운동후에 유의한 차를 보였으며, 비선수군에 비해 높은 값을 유지하였다. 양군에서 일회 박출량은 운동 초기에 급속히 증가했으나 시간이 경과함에 따라 후반에는 심박수와 같이 큰 폭의 증가는 보이지 않았다.선수군의 심박출량은 운동중 비선수군에 비해 유의하게 높았으나 일회박출량과 같이 큰 폭의 차이는 나타나지 않았으며, 이는 선수군에서의 심박수가 비선수군에 비해 낮은 값을 보이기 때문이다. 심박수, 일회박출량, 심박출량 간의 상관관계는 양군에서 모두 높았다.선수군의 좌심실 구혈시간은 운동전, 운동중, 운동후 모두 비선수군에 비해 유의하게 길었으며, 좌심실 구혈시간과 심박수 간의 상관관계 는 서로 높은 역상관 관계를 나타내었다.심박수, 일회박출량, 심박출량, 좌심실 구혈시간을 측정하여 얻은 위의 결과로 부터, 선수군의 심장기능이 우수함을 알 수 있으며, 특히 측정이 어려운 운동중의 심장기능을 새로 개발된 임피던스 심장기록법을 이용하여 측정이 가능하게 한 것이 의의있는 연구로 사료된다.이 새로운 심장기록법은 앞으로 운동중에 심장질환자의 심장기능의 평가 뿐 아니라 많은 운동선수들의 심장기능을 평가하는데 기여할 것으로 기대되는 바이다.
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자연과학편 : 본태성 고혈압환자에서 운동중 혈청지질이 혈압에 미치는 영향
정영자(YoungJaJung),최건식(KunSikChoi),어은실(EunShilEo),황수관(SooKwanHwang) 한국체육학회 1993 한국체육학회지 Vol.32 No.1
In essential hypertension, to see the influence of serum lipids on blood pressures during exercise, 40 normotensives and 21 hypertensives were subjected to measure serum TCH, HDL-C, LDL-C, TCH/HDL-C and TG and to measure blood pressures, heart rate and myocardial oxygen consumption before, during and after exercise.All of the results are followed by:1. Cholesterol concentrations and body fat were slightly increased in hypertensives compared with normotensives but it had no significant differences, and triglycerides in hypertensives (177±18.15㎎/dl) was significantly increased compared with normotensives(129.2±9.17㎎/dl) (p<0.05).2. Heart rate before, during, and after exercise had no significant differences between hypertensives and normotensives, but the rate of increase of heart rate was slightly lower in hypertensives than in normotensives as the exercise was graded up.3. Absolute blood pressures in hypertensives was significantly higher than in normotensives before, during, and after exercise(p<0.05). but the rate of increase of systolic blood pressures was much lower than in normotensives as the exercise was graded up, and diastolic blood pressures were slightly down at initial on exercise but tended to come back to the level of the resting blood pressures according to the progression toward the end of the exercise.4. Myocardial oxygen consumption in hypertensives was significantly higher than in normotensives before, during, after exercise, but tended to decrease in the rate of increase of myocardial oxygen consumption as the exercise graded up.5. Heart rate in hypertensive group beyond the normal range of total cholesterol was significantly lower than in hypertensive group of the normal range of total cholesterol during exercise and after exercise(p<0.05), and the group of high lipid concentrations was showen to have slightly the low rate of increase of heart rate.6. In hypertensives, the group beyond normal TCH/HDL-C concentrations was significantly higher than the normal range of TCH/HDL-C in absolute blood pressures(p<0.05) before and after exercise(p<0.05). Incontrast, the rate of increase of systolic blood pressures and diastolic blood pressures during exercise was slightly lower in group beyond normal range of lipid concentrations than in normal range of lipid concentrations.7. In hypertensives, myocardial oxygen consumption in group of high TG concentration(18.7±0.98 beats/min mmHg) was significantly lower than in group of normal TG concentrations(23.1±1.54beats/min mmHg) during exercise(p<0.05), and the rate of increase of myocardial oxygen consumption during exercise tended to be slightly down.In conclusion, the hypertensives with high serum lipid concentration has showen their high blood pressures, especially in diastolic blood pressure before, after and during exercise. But, the rate of increase of the heart rate, the blood pressure and myocardial oxygen demand during exercise had the tendency to be slightly decreased. This decreasement may result from the dysfunction of ventricle and sympathetic nervous system due to high blood pressure of hypertensives with high lipid concentration.In particular, TCH, TCH/HDL-C and TG among the ingredients of serum lipids may be influence on each heart rate, blood pressure and myocardial oxygen consumption of hypertensives.
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자연과학편 : 최대운동시 운동선수의 동정맥 산소분압 차이 ( a - vO<sub>2</sub> ) 의 변화양상
황수관(SooKwanHwang),최건식(KunSikChoi),송혜진(HyeJinSong),어은실(EunShilEo) 한국체육학회 1992 한국체육학회지 Vol.31 No.1
For study of arteriovenous oxygen difference after maximal exercise, selected several kinds of healthy male athletes, which aged 20∼23 year without cardiovascular disease : four swimmers with experience between seven to ten years, five marathoners, six footballers. five baseballers. and nine college non-athletes. The arteriovenous oxygen differences were calculated using the oxygen uptake and cardiac output. Oxygen uptakes were measured by gas-autoanalyzer and cardiac output by impedance cardiography.The results of this study were as follow:1. Maximal oxygen uptakes of the marathoners. 60.5㎖. and the footballers, 48.3㎖. were significantly higher han that of the non-athletes. 40.7㎖. Those of the swimmer ahtletes and the bass ballers were approximately the same as that of the non-athletes.2. Maximal cardiac outputs of the marathoners, 21.5L/min, was significantly higher than that of the non-athletes. 15.8L/min, and that of the footballers. 18.5L/min, was the second highest. Those of swim arthletes and baseballers were approximately the same as that of the non-athletes.3. Maximal stroke volume of marathoners, 120.5㎖, was significantly higher than that of the non-athletes. 85.20㎖, and that of the footballers, 100.0L/min, was the second highest. Those of swim artheltes and baseballers were approximately the same as that of the non-athletes.4. Arteriovenous oxygen differences were somewhat higher values in all athletes than in non-athletes before the exercise. After exercise, however, the maximum arteriovenous oxygen differences of the footaballers, 18.05㎖, and baseballers, 17.79㎖, were somewhat higher than that of the non-athletes. That of the marathoners was the highest among the all athletes at 1 minute after exercise and this value sustained until the recovery 6 minutes the same as that of the footballers.The results above, suggested that athletes have superior cardiac pulmonary function, and both the marathoners and the footballers with endurance training have larger arteriovenous oxygen difference than another athletes after maximal exercise.
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