随机抽样一组成人心脏体检胸片400份就几项X线表现进行分析。400例中333人未参加锻炼,79人为业余长跑队队员。400例中70人有高血压,其中64人不参加锻炼,6人为长跑队队员。观察结果如下: 1.主动脉改变发现:所测主动脉结横径,主动脉宽径、长径、高径的径值随年龄增长而增加。高血压患者各径值均增大,较同年龄组之正常人增大10～20％。运动锻炼对这些径值影响不大。 A random sample of a group of adult heart chest X-ray 400 were analyzed on several X-ray performance. 333 of 400 cases did not participate in exercise, 79 were amateur long-distance runners. 70 of 400 people had high blood pressure, of whom 64 did not participate in exercise and 6 were runners. Observations are as follows: 1. Aortic changes found: measured aortic node diameter, aortic width, diameter, height diameter diameter increases with age. The diameter of hypertensive patients increased, more than the same age group of normal increased by 10 to 20%. Exercise exercise on these trails have little effect.