A dampening effect of pulse interval variability on blood pressure variations with respect to primary variability in blood pressure during exercise.

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.

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

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Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

30105 Physiology

Country of publisher

Czech Republic

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

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

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Abstract

V originále

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.

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.