자연과학편 : 최대운동시 운동선수의 동정맥 산소분압 차이 ( a - vO₂ ) 의 변화양상 = Changes of a - vO2 on maximal exercise in athletes

다국어 초록 (Multilingual Abstract)

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.