Blood pressure and cardiac autonomic modulation at rest, during exercise and recovery time in the young overweight

Araújo, Jaqueline Alves de; Tricot, Gabriel Kolesny; Arsa, Gisela; Queiroz, Marilene Gonçalves; Meireles, Kamila; Dias, André Rodrigues Lourenço; Souza, Katrice Almeida de; Cambri, Lucieli Teresa

doi:10.1590/s1980-65742016000100004

Cited by 8 publications

(4 citation statements)

References 34 publications

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“…Analysis of parasympathetic withdrawal and reactivation has been used to monitor acute 14,25,30 and chronic 31,32,33 adaptations induced by physical training on cardiac autonomic function. Our findings suggest that HRVT and short analysis of r-MSSD (i.e., 60 s) during active recovery on a treadmill can be a good and reliable methods for assessing vagal dynamics during and after exercise.…”

Section: Discussionmentioning

confidence: 99%

Reliability of heart rate variability threshold and parasympathetic reactivation after a submaximal exercise test

Cruz

Rolim

Pires

et al. 2017

Motriz: rev. educ. fis.

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-The objective of this study was to evaluate reproducibility of heart rate variability threshold (HRVT) and parasympathetic reactivation in physically active men (n = 16, 24.3 ± 5.1 years). During the test, HRVT was assessed by SD1 and r-MSSD dynamics. Immediately after exercise, r-MSSD was analyzed in segments of 60 seconds for a period of five minutes. High absolute and relatively reproducible analysis of HRVT were observed, as assessed by SD1 and r-MSSD dynamics (ICC = 0.92, CV = 10.8, SEM = 5.8). During the recovery phase, a moderate to high reproducibility was observed for r-MSSD from the first to the fifth minute (ICC = 0.69-0.95, CV = 7.5-14.2, SEM = 0.07-1.35). We conclude that HRVT and r-MSSD analysis after a submaximal stress test are highly reproducible measures that might be used to assess the acute and chronic effects of exercise training on cardiac autonomic modulation during and/or after a submaximal stress test.

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Section: Discussionmentioning

confidence: 99%

Reliability of heart rate variability threshold and parasympathetic reactivation after a submaximal exercise test

Cruz

Rolim

Pires

et al. 2017

Motriz: rev. educ. fis.

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“…Heart rate variability (HRV) consists of the fluctuations in R-R interval (iRR) between successive heartbeats defined by the distance between two R-waves on the electrocardiogram 1,2 . HRV has been used either in sports or in clinical settings as a proxy of the cardiac autonomic function 3,4 . In this sense, different HRV methods and indices have been proposed to evaluate the parasympathetic activation or its withdraw associated with various physiological conditions such as exercise 5,6 .…”

Section: Introductionmentioning

confidence: 99%

Is a short-stage protocol during an incremental exercise test reliable for heart rate variability threshold analysis?

Cruz

Porto

Garcia

et al. 2019

Motriz: rev. educ. fis.

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Heart rate variability threshold (HRVT) is a valid method to determine parasympathetic depression during an incremental exercise test (IET). However, HRVT is usually assessed using the last 60s of each 180s stage of an IET, resulting in longer and demotivating tests. This study aimed to evaluate the agreement of HRVT analysis adopting the first and second minute of R-R interval (iRR) segment comparatively to a standard third-minute segment obtained at each 3-min stage on IET. Methods: Seventeen young male subjects (22.2 ± 3.1 years; 23.4 ± 2.3 kg/m 2) underwent IET on a cycle ergometer. HRVT was considered the load corresponding to the point of stabilization of the SD1 index (HRVTV), or the first load with SD1 value < 3ms (HRVT<3), both assessed by the 1 st (HRVT1V, HRVT1<3), 2 nd (HRVT2V, HRVT2<3) and standard 3 rd (HRVT3V, HRVT3<3) 60s iRR segment analyzed at each stage of IET. Agreement and reliability were assessed by the Bland-Altman analysis and the intraclass correlation coefficient (ICC), respectively. Results: High reliability and non-significant bias were observed considering HRVT1V vs HRVT3V (ICC = 0.92; p = 0.18) or HRVT2V vs HRVT3V (ICC = 0.94; p = 0.99). However, lower reliability was observed for HRVT1<3 vs HRVT3<3 (ICC = 0.79; p = 0.75) and for HRVT2<3 vs HRVT3<3 (ICC = 0.91; p = 0.33). Conclusion: HRVT can be similarly assessed by the 1 st , 2 nd or 3 rd 60 seconds iRR segment, mainly when assessed by a visual method.

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“…However, during incremental physical exercise, at intensities greater than 50-60 % of maximal oxygen consumption [13,19], increases in heart rate (HR) are mediated by sympathetic activation, and withdrawn parasympathetic activity [27]. This physiological moment is called the HRV threshold (HRVT) [1,13,27]. The HRVT is a parameter used for physical exercise prescription, because it determines a limit intensity for cardiovascular safety [4] given that the vagal protective action remains present.…”

Section: Introductionmentioning

confidence: 99%

Reproducibility of Heart Rate Variability Threshold in Untrained Individuals

et al. 2018

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The aim of this study was to evaluate the reproducibility of the heart rate variability threshold (HRVT) by different HRV indexes and determination criteria. 68 untrained participants, 17 women (24.09±4.91 years old; 21.54±1.97 kg∙m−2) and 51 men (24.52±3.52 years old; 26.51±6.31 kg∙m−2), were evaluated on 2 different days (test and retest). The HRVT was determined during an incremental exercise test using 2 indexes (SD1 and RMSSD) and criteria (HRTV1, first intensity of physical effort with index<3 ms, and HRVT2, first intensity of physical effort, in which the index presents a difference<1 ms between 2 consecutive intensities). There was no significant difference (p<0.05) between the test and retest for any of the variables evaluated. All variables, except for the rate of perceived exertion at HRVT2, presented moderate to high intraclass correlation coefficient (HRVT1: 0.55–0.85 and HRVT2:0.58–0.69). All variables at HRVT1 and the heart rate at HRVT2 showed coefficient of variation ~ 10%. The HRVT, regardless of criteria and HRV index used, showed satisfactory reproducibility. Thus, these criteria can be used to assess clinically autonomic cardiac modulation and aerobic capacity, and to analyze the effect of different interventions.

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Blood pressure and cardiac autonomic modulation at rest, during exercise and recovery time in the young overweight

Cited by 8 publications

References 34 publications

Reliability of heart rate variability threshold and parasympathetic reactivation after a submaximal exercise test

Reliability of heart rate variability threshold and parasympathetic reactivation after a submaximal exercise test

Is a short-stage protocol during an incremental exercise test reliable for heart rate variability threshold analysis?

Reproducibility of Heart Rate Variability Threshold in Untrained Individuals

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