Lehmann M, Samek L
Department of Sport and Performance Medicine, University Medical Hospital, Freiburg, Federal Republic of Germany.
Clin Cardiol. 1990 Aug;13(8):547-54. doi: 10.1002/clc.4960130808.
We examined the influence on heart rate, blood pressure, lactate, glucose, and catecholamine levels of moderate recreational swimming at a mean time of 5.2 to 9 minutes with mean speed of 0.33 to 0.49 m/s in 25 CHD patients and 8 healthy control subjects. During swimming, changes in these exercise-related parameters were observed such as were only found in seated ergometry trials at levels above 100 to 175 W. We consider these changes tolerable for patients with mild left heart damage (n = 13; ejection fraction 54 +/- 7%; exercise capacity 2.1 +/- 0.4 W/kg). They may indicate overexertion in patients with marked damage to the left heart (n = 12; ejection fraction 44 +/- 5%; exercise capacity 1.3 +/- 0.4 W/kg). Six of the 12 patients with marked left heart damage stopped swimming before the planned time had elapsed for subjective (overexertion) or objective (arrhythmia) reasons.
我们研究了25名冠心病患者和8名健康对照者进行平均时长5.2至9分钟、平均速度0.33至0.49米/秒的适度休闲游泳对心率、血压、乳酸、葡萄糖和儿茶酚胺水平的影响。在游泳过程中，观察到这些与运动相关参数的变化，这些变化仅在坐位测力计试验中功率高于100至175瓦时才会出现。我们认为这些变化对于轻度左心损伤患者（n = 13；射血分数54±7%；运动能力2.1±0.4瓦/千克）是可耐受的。它们可能表明左心严重损伤患者（n = 12；射血分数44±5%；运动能力1.3±0.4瓦/千克）运动过度。12名左心严重损伤患者中有6名因主观（运动过度）或客观（心律失常）原因在计划时间结束前停止了游泳。
