Aplicabilidade Clínica da Variabilidade da Frequência Cardíaca

Lopes, P; Oliveira, Maria Izabel Bezerra de; André, Samanta; Nascimento, Daiany; Silva, Cynthia; Rebouças, Gleidson Mendes; Felipe, Thiago Renee; Albuquerque-Filho, Nailton J. Brandão de; Medeiros, Humberto Jefferson de

doi:10.4181/rnc.2013.21.870.4p

Cited by 18 publications

(21 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…26 An increase or reduction in HRV indicates a change in the sympathetic-vagal balance in which a high HRV indicates proper functioning of autonomic control. 12,[26][27][28] In this study, no statistically significant intergroup differences in SDNN and RMSSD were identified during rest or in the acute response to the 1RM test despite lower expected autonomic modulation rates in the normotensive condition compared to the prehypertensive condition. In contrast, Paschoa et al (2006) reported a reduction in the SDNN and RMSSD indices in normotensive individuals after strength exercises.…”

Section: Discussionmentioning

confidence: 82%

“…28 In the frequency domain, in which there is a real possibility of demonstrating the sympathetic-vagal balance on the heart, a difference during rest in LF/HF rest the variable LF/HF was identified with a predominance of the sympathetic system in the PH group, consistent with findings of published reports. 12,27,28 No difference was observed in the behavior of the variable LF/HF after the adjustment of HRV to body fat indices. [26][27][28][29] However, the relationship between obesity and autonomic dysfunction seems dependent on the obesity indicator used.…”

Section: Discussionmentioning

confidence: 99%

“…In the frequency domain, the total power of the frequency bands, very low frequency (VLF), low frequency (LF), high frequency (HF), and LF/HF ratio were analyzed. 12 Kubios HRV analysis software version 2.2 was used to fit the intervals and calculate the indices.…”

Section: Study Design and Analysis Proceduresmentioning

confidence: 99%

“…10 Predictive formulas or equations display accuracy limitations, as they are developed by regressive statistical methods, making them inaccurate and with a high probability of estimation error in addition to having a low association with cardiovascular variables. 11,12 According to some authors, 8,13,14 the 1RM test promotes more pronounced changes in patients with PH than in normotensive individuals.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Cardiovascular Effects of a Strength Test (1rm) in Prehypertensive Subjects

Lima

Martinez

Morais

et al. 2019

Rev Bras Med Esporte

View full text Add to dashboard Cite

Introduction: Physical exercise promotes positive physiological adaptations, reducing the risk of developing cardiovascular diseases and promoting greater autonomic control of heart rate and reduction in pressure levels. Objective: To compare the behavior of arterial pressure and autonomic heart rate modulation in the 1-repetition maximum knee extension test, performed on the 45-degree leg press machine in normotensive and prehypertensive subjects. Methods: Twenty-four male volunteers were assessed. Blood pressure (BP) and heart rate variability (HRV) were evaluated at rest, immediately after the maximum load achieved and during the 10, 20, 30 and 40-minute recovery phases. Statistical analyses were obtained using SigmaStat 3.5 software and a level of significance of 5%. Results: Mean and standard deviation were used to identify 12 normotensive patients (N) aged = 25.5 ± 5.7 years; height = 174.3 ± 6.6 cm; BMI = 24.9 ± 2.4; SBP on average = 112.6 ± 5.6 mmHg and 12 prehypertensive (PH) patients aged = 29.8 ± 6.5 years; height = 175.7 ± 6.7 cm; BMI = 27.8 ± 6.5; mean SBP = 131.1 ± 3.2 mmHg. There was a statistical difference in the pNN50 index (%) at rest (PH = 1.13 ± 0.66 and N = 1.58 ± 0.35) and in the LF/HF index, also at rest (PH = 0.18 ± 0.29 and N = −0.18 ± 0.36). Conclusion: The one-repetition maximum (1RM) test did not promote cardiovascular risk in the prehypertensive group during its execution, with double product results lower than 30,000 mmHg.bpm, demonstrating lower cardiac overload. Moreover, HRV exhibited similarity in sympathetic-vagal behavior, in the time/frequency domain, between the groups. Level of Evidence III; Study Case-control.

show abstract

Section: Discussionmentioning

confidence: 82%

Section: Discussionmentioning

confidence: 99%

Section: Study Design and Analysis Proceduresmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Cardiovascular Effects of a Strength Test (1rm) in Prehypertensive Subjects

Lima

Martinez

Morais

et al. 2019

Rev Bras Med Esporte

View full text Add to dashboard Cite

show abstract

“…Diversas causas podem ser responsáveis por alterar a FC na população pediátrica, incluindo cardiopatias, prematuridade e patologias neurológicas [3,4]. Isso pode levar a redução da capacidade de consumo máximo de oxigênio, podendo desencadear dispneia compelida pelo exercício, impactando negativamente na sua qualidade de vida [5,6].…”

Section: Introductionunclassified

Equações utilizadas para a predição de frequência cardíaca máxima na população pediátrica não atlética: uma revisão sistemática

Spitznagel

Santos

Branco

et al. 2019

Sci Med

View full text Add to dashboard Cite

AIMS: To evaluate the applicability of the predictive equations of maximum heart rate during exercise tests in non-athlete children and adolescents.METHODS: It is a systematic review, carried out through Pubmed, Lilacs, Scielo and PEDro. We included studies comparing the maximum heart rate measured and estimated by predictive equations during stress tests in non-athlete children and adolescents. The following search strategy was used: Exercise test OR Exercise testing OR Cardiopulmonary exercise test OR Cardiopulmonary exercise testing OR Peak oxygen uptake OR Maximal oxygen consumption OR Exercise tolerance OR Exercise capacity AND Heart rate OR Heart rates OR Pulse rate OR Pulse rates OR Heart rate control OR Cardiac chronotropic OR Predictive value test AND Predictive equations. The methodological quality was assessed by the Agency for Health Care Research and Quality scale.RESULTS: Of a total of 858 articles located, only four were included. The articles totaled 325 participants (seven to 18 years). All studies measured the maximum heart rate by cardiopulmonary stress test. While no study recommended (04/04=100%; 01/01=100%) the formulas “220 - age” and “207 - 0.7 x age”, the equations “208 - (0.7 x age)” and “200 - 0.48 x age” were adequate in 02/03 (66.6%) articles and 01/01 (100%) document, respectively. The methodological quality was considered high in all articles evaluated, ranging from 76 to 97 points.CONCLUSIONS: The findings seem to suggest that the formula “208 - (0.7 x age)” was the most tested and adequate equation to a large extent for estimating maximum heart rate in non-athlete children and adolescents. However, further studies are still needed to confirm these results.

show abstract

An Approach to Assess Quality of Life Through Biometric Monitoring in Cancer Patients

Silva

Aguiar

Oliveira

et al. 2019

Advances in Intelligent Systems and Computing

View full text Add to dashboard Cite

Cancer is a serious disease that causes significant disability and suffering, so naturally Health Related Quality of Life (HRQoL) is a major concern of patients, families and clinicians. This paper intends to relate biometric indices, in terms of HRV metrics, with self-perceived HRQoL from patients with lymphoma. Patients (N = 12) answered FACT questionnaire and used a smartband that collected biometrical data in real-time along the chemotherapy treatment. Our results revealed that Physical Well-Being, Total, Lymphoma subscale and FACT-Lym Trial Outcome domains seem to have a similar pattern that HRV metrics across the treatment cycles. In specific, the FACT domains and the HRV metrics have the lowest average levels on the first cycle and seem to increase along the following cycles (3 rd and 6 th cycles). This approach of continuous assessment of HRQoL will enable a better accuracy and more supported clinical decision.

show abstract

Aplicabilidade Clínica da Variabilidade da Frequência Cardíaca

Cited by 18 publications

References 16 publications

Cardiovascular Effects of a Strength Test (1rm) in Prehypertensive Subjects

Cardiovascular Effects of a Strength Test (1rm) in Prehypertensive Subjects

Equações utilizadas para a predição de frequência cardíaca máxima na população pediátrica não atlética: uma revisão sistemática

An Approach to Assess Quality of Life Through Biometric Monitoring in Cancer Patients

Contact Info

Product

Resources

About