Letac B, Cribier A, Desplanches J F
Circulation. 1977 Sep;56(3):375-8. doi: 10.1161/01.cir.56.3.375.
Fifteen subjects recovering from a myocardial infarction or suffering from angina were given a maximum effort test on a bicycle ergometer and hemodynamic and angiographic investigations before and after a period of physical training. The training program consisted of three sessions of 60 to 75 min each week for two months. Maximum effort tests showed that physical capacity had increased by 17% (P less than 0.02) and that for the same amount of effort the heart rate had decreased by 13% and the blood pressure by 7% (P less than 0.01). Hemodynamic and angiographic investigations showed no significant changes after training in the left ventricular end-diastolic pressure, ventricular volume, ejection fraction, VCF, percentage of shortening and segmental contractility, in the total group, in those patients whose contractility was considerably impaired, or in those who had large dyskinetic areas or widespread akinesia. It is concluded that training had no direct influence on the myocardium, either beneficial or detrimental.
15名正从心肌梗死中恢复或患有心绞痛的受试者在自行车测力计上进行了最大负荷测试，并在一段时间的体育训练前后进行了血液动力学和血管造影检查。训练计划包括每周进行三次，每次60至75分钟，共持续两个月。最大负荷测试表明，体能增加了17%（P<0.02），并且在同等努力程度下，心率下降了13%，血压下降了7%（P<0.01）。血液动力学和血管造影检查显示，在训练后，总体组、收缩功能严重受损的患者、存在大面积运动障碍区域或广泛运动不能的患者，其左心室舒张末期压力、心室容积、射血分数、心室周长缩短率、缩短百分比和节段性收缩力均无显著变化。结论是，训练对心肌没有直接影响，无论是有益的还是有害的。
