Variabilidade da freqüência cardíaca em diferentes faixas etárias

Paschoal, M.A.; Volanti, VM; Pires, CS; Fernandes, F. Veiga

doi:10.1590/s1413-35552006000400009

Cited by 45 publications

(62 citation statements)

References 22 publications

(26 reference statements)

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“…Moreover, these indexes also allow verification of the influence of factors such as age [4,7,37,79,80], gender [81][82][83] and exercise [17][18][19]29,38] on the autonomic control. Table 2 shows studies using HRV in various physiological and pathological conditions.…”

Section: Clinical Applicationsmentioning

confidence: 99%

“…Table 2 shows studies using HRV in various physiological and pathological conditions. Carnethon et al [56] Novais et al [29] Menezes et al [60] Terathongkum et al [61] Takahashi et al [55] Bittencourt et al [26] Pecyna [63] Carney et al [54] Limongelli et al [58] Karas et al [59] Larosa et al [62] Javorka et al [38] Catai et al [7] Weerapong et al [41] Mello et al [37] Paschoal et al [72] Sin DD et al [66] Kudaiberdieva et al [65] Lopes et al [71] Neves et al [73] Furuland et al [68] Lopes et al [79] and Paschoal et al [80] observed that the aging process causes a depletion of vagal tone and consequent increase in sympathetic activity, therefore older individuals have a lower HRV. In 2006, Rajendra Acharya et al [4] observed that HRV is lower with age and the variation is greater in women.…”

Section: Clinical Applicationsmentioning

confidence: 99%

See 1 more Smart Citation

Noções básicas de variabilidade da frequência cardíaca e sua aplicabilidade clínica

Vanderlei

Pastre

Hoshi

et al. 2009

Rev Bras Cir Cardiovasc

659

499

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Autonomic nervous system (ANS) plays an important role in the regulation of the physiological processes of the human organism during normal and pathological conditions. Among the techniques used in its evaluation, the heart rate variability (HRV) has arising as a simple and non-invasive measure of the autonomic impulses, representing one of the most promising quantitative markers of the autonomic balance. The HRV describes the oscillations in the interval between consecutive heart beats (RR interval), as well as the oscillations between consecutive instantaneous heart rates. It is a measure that can be used to assess the ANS modulation under physiological conditions, such as wakefulness and sleep conditions, different body positions, physical training and also pathological conditions. Changes in the HRV patterns provide a sensible and advanced indicator of health involvements. Higher HRV is a signal of good adaptation and characterizes a health person with efficient autonomic mechanisms, while lower HRV is frequently an indicator of abnormal and insufficient adaptation of the ANS, provoking poor patient's physiological function. Because of its importance as a marker that reflects the autonomic nervous system activity on the sinus node and as a clinical instrument to assess and identify health involvements, this study reviews conceptual aspects of the HRV, measurement devices, filtering methods, indexes used in the HRV analyses, limitations in the use and clinical applications of the HRV.Descriptors: Autonomic nervous system. Heart rate. Parasympathetic nervous system. Sympathetic nervous system. ResumoO sistema nervoso autônomo (SNA) desempenha um papel importante na regulação dos processos fisiológicos do organismo humano tanto em condições normais quanto patológicas. Dentre as técnicas utilizadas para sua avaliação, a variabilidade da frequência cardíaca (VFC) tem emergido como uma medida simples e não-invasiva dos impulsos autonômicos, representando um dos mais promissores marcadores quantitativos do balanço autonômico. A VFC descreve as oscilações no intervalo entre batimentos cardíacos consecutivos (intervalos R-R), assim como oscilações entre frequências cardíacas instantâneas consecutivas. Trata-se de uma medida que pode ser utilizada para avaliar a modulação do SNA sob condições fisiológicas, tais como em situações de vigília e sono, diferentes posições do corpo, treinamento físico, e também em condições patológicas. Mudanças nos padrões da VFC fornecem um indicador sensível e antecipado de comprometimentos na

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Section: Clinical Applicationsmentioning

confidence: 99%

Section: Clinical Applicationsmentioning

confidence: 99%

Noções básicas de variabilidade da frequência cardíaca e sua aplicabilidade clínica

Vanderlei

Pastre

Hoshi

et al. 2009

Rev Bras Cir Cardiovasc

659

499

View full text Add to dashboard Cite

show abstract

“…This activation can be affected by the individual's breathing (Taelman et al, 2011). Hjortskov et al (2004) observed that mental stress during computer work leads to changes in HR and to a sustained increase in BP, and that these effects are reverted resting (Paschoal et. al., 2006).…”

Section: Methodsmentioning

confidence: 99%

Students’ blood pressure and heart rate in learning environments with thermal changes

Carvalho¹,

Barroso²,

Silva³

et al. 2018

IJOOES

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The increase in global temperature in recent years (which is likely to continue) has the power to affect the temperatures of indoor workplaces. This increase may in turn, be reflected in human performance. The present article analyzes the relationship between air temperature, blood pressure and heart rate variation in students in a learning environment through Video Display Terminals (VDT), located in northeastern Brazil. The thermal conditions were analyzed during three consecutive days, according to ISO 7726: 1998; in the group of students who underwent changes in indoor air temperature, their blood pressure and heart rate were also measured. When the air temperature was of 20ºC, 24% of the subjects' heart rate exceeded 100bpm, while for 30 °C this number reached 51%. The results revealed changes in diastolic blood pressure and heart rate when air temperature increases.

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“…The wide possibilities for using HRV added to the ease of data acquisition enables its use for the identification of ANS-related phenomena in individuals of different ages and states of health, as well as making evaluation possible in individuals during rest or exercise (1,(12)(13)(14)(15)(16)(17).…”

Section: Introductionmentioning

confidence: 99%

Effects of exercise on cardiac autonomic modulation in children: literature update

et al. 2015

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Introduction: It is known that physical exercise is beneficial and precipitates adjustments to the autonomic nervous system. However, the effect of exercise on cardiac autonomic modulation in children, despite its importance, is poorly investigated. Objective: To bring together current information about the effects of exercise on heart rate variability in healthy and obese children. Methods: The literature update was performed through a search for articles in the following databases; PubMed, PEDro, SciELO and Lilacs, using the descriptors "exercise" and "child" in conjunction with the descriptors "autonomic nervous system", "sympathetic nervous system", "parasympathetic nervous system" and also with no descriptor, but the key word of this study, "heart rate variability", from January 2005 to December 2012. Results: After removal of items that did not fit the subject of the study, a total of 9 articles were selected, 5 with healthy and 4 with obese

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Variabilidade da freqüência cardíaca em diferentes faixas etárias

Cited by 45 publications

References 22 publications

Noções básicas de variabilidade da frequência cardíaca e sua aplicabilidade clínica

Noções básicas de variabilidade da frequência cardíaca e sua aplicabilidade clínica

Students’ blood pressure and heart rate in learning environments with thermal changes

Effects of exercise on cardiac autonomic modulation in children: literature update

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