HONZÍKOVÁ, Nataša, Antonín KRTIČKA, Zuzana NOVÁKOVÁ and Eva ZÁVODNÁ. A dampening effect of pulse interval variability on blood pressure variations with respect to primary variability in blood pressure during exercise. Physiological Research. Praha, Czech Republic: Institute of Physiology, Academy of Sci., 2003, vol. 52, No 3, p. 299-309. ISSN 0862-8408.
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Basic information
Original name A dampening effect of pulse interval variability on blood pressure variations with respect to primary variability in blood pressure during exercise.
Name in Czech Tlumivý efekt variability tepových intervalů na primární kolísání krevního tlaku během zátěže
Authors HONZÍKOVÁ, Nataša (203 Czech Republic, guarantor), Antonín KRTIČKA (203 Czech Republic), Zuzana NOVÁKOVÁ (203 Czech Republic) and Eva ZÁVODNÁ (203 Czech Republic).
Edition Physiological Research, Praha, Czech Republic, Institute of Physiology, Academy of Sci. 2003, 0862-8408.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 30105 Physiology
Country of publisher Czech Republic
Confidentiality degree is not subject to a state or trade secret
WWW URL
Impact factor Impact factor: 0.939
RIV identification code RIV/00216224:14110/03:00009213
Organization unit Faculty of Medicine
UT WoS 000183692000005
Keywords in English Baroreflex sensitivity; Spectral analysis; Heart rate variability; Blood pressure variability; Exercise.
Tags baroreflex sensitivity, blood pressure variability, exercise., heart rate variability, spectral analysis
Tags International impact, Reviewed
Changed by Changed by: prof. MUDr. Nataša Honzíková, CSc., učo 1700. Changed: 19/6/2009 15:02.
Abstract
The correlation between baroreflex sensitivity (BRS) and the component of spectrum at a frequency of 0.1Hz of pulse intervals (PI) and systolic blood pressure (SBP) was studied. SBP and PI of 51 subjects were recorded beat-to-beat at rest, during exercise and during recovery. BRS was determined by a spectral method. The subjects were divided into groups according to the spectral amplitude of SBP at a frequency of 0.1 Hz: very high (vh); high (h); middle (m), low (l). The 0.1 Hz variability of PI increased significantly with increasing BRS in each of the groups with the identical 0.1 Hz variability in SBP. This relationship was shifted to the lower values of PI variability at the same BRS with a decrease in SBP variability. The primary SBP variability increased during exercise. The interrelationship among the variability of SBP, PI and BRS was identical at rest and during exercise. During exercise, the increasing primary variability in SBP due to sympathetic activation was present.
Abstract (in Czech)
Studovali jsme korelace mezi baroreflexní citlivostí (BRS) a komponentou spektra tepových intervalů (TI) a systlického tlaku (STK) při frekvenci 0,1 Hz. STK a TI 51 subjektů byly zaznamenávány tep po tepu v klidu, během zátěže a během restituce. BRS bylo stanoveno spektrální analýzou. Subjekty byly rozděleny do skupin podle velikosti amplitudy STK při frekvenci 0,1 Hz: velmi vysoká (vv); vysoká (v); střední (s), nízká (n). Variabilita TI při 0,1 Hz významně narůstá se vzestupem BRS v každé podskupně s identickou úrovni variability STK. Tento vztah byl při stejném BRS posunut k nižším hodnotám variability TI s poklesem STK variability. Variability STK se během zátěže zvýšila. Vztah mezi variabilitou STK, variabilitou TI a BRS je identický jak v klidu tak během zátěže.
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