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本文利用多普勒超声仪分别对50名常年冬泳锻炼的老年人和48名无冬泳锻炼史的老年人在安静状态、3 min台阶实验后、台阶试验结束恢复5 min后的心脏指标进行测定。结果表明：多年冬泳锻炼老人心脏的LVDdI、LVDsI、IVSsI、LVPWsI指标明显优于对照组；心脏的泵血功能和收缩功能都显著提高；左心室增大，心肌重量及重量指数增加，从而缓解舒张能力。通过常年冬泳锻炼，有助于老年人心血管系统耗能降低，心率储备能力和心脏功能得到适应性提高。
In this paper, 50 elderly winter swimming exercise and 48 elderly swimming without winter swimming exercise were measured by Doppler ultrasound in resting state, 3 min step test and 5 min after step test. The results showed that the indexes of LVDdI, LVDsI, IVSsI and LVPWsI in the elderly winter swimming exercising elderly were significantly better than those in the control group. The blood pumping and systolic functions of the heart were significantly increased. The left ventricle increased, the myocardial weight and weight index increased, ability. Through the perennial winter swimming exercise, contribute to the elderly cardiovascular system to reduce energy consumption, heart rate reserve capacity and cardiac function are adaptively improved.