운동생리학 : 트레드밀 운동시 체지방에 따른 ST/HR slope 및 Duke 트레드밀 운동 점수(DTS) = The changes of the percent body fat on ST-segment depression/HR slope and Duke treadmill exercise score(DTS) during treadmill exercise in the men.

다국어 초록 (Multilingual Abstract)

The purpose of this study was to research the effects of percent body fat on aerobic exercise capacity, ST-segment depression/HR slope and Duke treadmill exercise score(DTS) during treadmill exercise in the men. Subjects were 58 men who were 40 years old, and they were classified into four groups such as control(body fat, 10~15%) group, overweight(body fat, 15~20%) group, obesity(body fat, 20~25%) group, and severe obesity(body fat, >25%) groups. HR, SBP, MVO₂ and ST segment were measured during exercise with Bruce protocol. During the graded treadmill exercise testing, ECG was recorded and analysed ST segment position at V₂ and V_5 leads and then adjusted by ST/HR slope. The treadmill exercise score was calculated as previously described: (exercise time) - (5×maximum ST segment deviation) - (4×treadmill angina). Statistical analysis was performed using analysis of oneway ANOVA. As a results, aerobic exercise capacity was significantly lower in severe obesity group than three groups. ST segment and ST/HR slope were depressed in proportion to the exercise intensity. During exercise ST/HR slope of obesity and severe obesity groups were lower than control group. Ischemic symptoms were apt to early diagnose in ST/HR slope than ST segment. Duke treadmill exercise score(DTS) was significantly lower in severe obesity group than three groups. Conclusionally, ST/HR slope was more useful method for evaluation ischemic symptom during treadmill exercise than ST segment depression. And that cardiovascular disease risk were increased in the obesity and severe obesity men.