Vývoj variability srdečních intervalů a variability krevního tlaku ve věku 11-20 let
| Title in English | Development of cardiac interval variability and blood pressure variability in age of 11-20 years |
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| Authors | |
| Year of publication | 2008 |
| Type | Conference abstract |
| MU Faculty or unit | |
| Citation | |
| Description | The aim of the study was to show the influence of age and mean cardiac interval on systolic blood pressure and cardiac interval variability. Parasympathetic and sympathetic activity during adolescence increased, which is evident from cardiac interval and systolic blood pressure increase. Increased parasympathetic activity is also usually documented by higher cardiac interval variability; however, we found that this parameter decreased with age, which could be explained by the effect of other mechanisms (mechanical, humoral or neural) dependent on age. The influence of cardiac intervals on systolic blood pressure variability could explain the weak significant decrease of SBPSD with age, although standardized systolic blood pressure variability did not change with age. The results indicate a partially independent development of the reflex and tonic control of the cardiovascular system. |
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