STATE OF THE CARDIOVASCULAR SYSTEM'S TOLERANCE TO PHYSICAL ACTIVITY AND CHARACTERIZATION OF MYOCARDIAL RESERVE AS A RESULT OF BICYCLE STRESS TEST IN CHILDREN WITH PRIMARY HYPERTENSION
DOI:
https://doi.org/10.11603/24116-4944.2015.1.4660Keywords:
arterial hypertension, children, bicycle stress test.Abstract
Тhе results of bicycle stress test in 90 children 11-17 years with normal and high blood pressure and their comparative characteristics depending on the shape of the primary arterial hypertension (PAH) was presented. These results suggest, that the hypertensive reaction in heart rate, systolic and diastolic blood pressure is not only in their higher values at the height of physical activity, but also in the fluctuations above and below the initial value, range and time of which are in a phase of rest after the test depends on the form of pah (labile, stable stage i or stable stage ii.). The labile hypertension formed with insufficient functional reserves infarction and accompanied by increased and wasteful spending of these reserves. Stabilization of hypertension is accompanied by compensatory changes that occur redistribution of cardiac and vascular function reserves a way that improves the efficiency of the heart's work. Revealed features of adaptation to physical activity in children with different forms of PAH reveal pathogenetic features of hypertension and stabilization processes are promising with respect to the prediction of stable and labile flow pah and the development of appropriate therapeutic and preventive measures.
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