[Short-term adaptation of cardiovascular system of children of 5-7 years to mental loading].

For the purpose of revealing of adaptable possibilities of cardiovascular system research of 150 children of 5-7 years by a method oftetrapolar reography on Kubichek at rest and at mental loading. Research has shown that from 5 to 7 years there are essential changes of parameters of central haemodynamics: increase systolic and diastolic arterial pressure (SAP and DAP), increase stroke volume (SV) and the minute blood volume (MBV), and as decrease heart rate (HR). Mental loading causes two variants of reaction of stroke volume.