Lang E, Hubmann M
Z Alternsforsch. 1977;32(6):509-17.
In 278 healthy probands in the age of 23 to 80 years were measured the systolic periods and examined in dependence of age. There are found the following results: 1. from the youngest to the oldest group there is a small, statistically not significant increase of the middle systolic period. 2. the presphygmic phase (PEP) and the frequence-corrected interval (PEPI) show a small increase of the middle values in the first four age steps. Only after the age of 60 years is a clear increase of PEP and PEPI. 3. the expulsion time (LVET) and the expulsion index (LVETI) show in an increasing tendency of the mean values no significant difference of the mean value in the age groups. 4. the quotient LVET/PEP follows the course of PEP and PEPI. There is supposed, that the clear statistically significant increase of the mean value of the presphygmic phase and the presphygmic index after the age of 60 years cannot not be reduced to a "physiologic age insufficiency of the heart", but its cause is founded in asymptomatic courses of the coronary heart disease or other defined heart diseases.
对278名年龄在23至80岁之间的健康受试者测量了收缩期，并根据年龄进行了检查。得到以下结果：1. 从最年轻组到最年长组，收缩中期有小幅增加，但在统计学上不显著。2. 预射血期（PEP）和频率校正间期（PEPI）在前四个年龄阶段中值有小幅增加。仅在60岁以后，PEP和PEPI才明显增加。3. 射血时间（LVET）和射血指数（LVETI）显示平均值呈上升趋势，但各年龄组平均值无显著差异。4. LVET/PEP商数与PEP和PEPI的变化趋势一致。据推测，60岁以后预射血期和预射血指数平均值在统计学上的明显显著增加不能归因于“心脏的生理性年龄不足”，其原因在于冠心病或其他明确心脏病的无症状病程。
