[Effect of defined body stress in pregnancy on the functional values of the maternal cardiovascular system and fetal heart rate].

Four healthy women are subjected to a defined physical training in the 22nd and 34th weeks of pregnancy. Systolic and diastolic blood pressures, maternal heart rate, respiratory quotient, oxygen pulse, tension-time index and oxygen partial pressure are determined. In addition, the fetal heart sounds are registered in the 34th week of pregnancy. Normal levels of cardiorespiratory function can be detected in three patients. Fetal heart rate is likewise unremarkable. A considerable rise in blood pressure during exercise in one women only and, moreover, two accelerations of a duration of 6 to 7 minutes and a frequency of 200 beats per minute are recorded on the fetal cardiogram. The influence of physical training on uteroplacental circulation during pregnancy is discussed considering the results reported in the pertinent literature.