Age and Gender Dependency of Complexity Measures of Short-Term Heart Rate Time Series

Schroeder, Rico; Voss, Andreas

doi:10.1007/978-3-319-58709-7_18

Cited by 2 publications

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“…This is made even clearer by certain nonlinear HRV indices. Both, increased values of normPE_embedd_3_lag_1 from permutation entropy and phvar20 from SD and a decrease of sppa_6 from SPPA suggest more complexity, unpredictability and variability of NN interval time series gained after yoga intervention in comparison to time series acquired prior to interventions and after regular school sports [44,45]. A noticeably higher value of phvar20 in the yoga group after intervention means an increased occurrence of words of the word type "111111" within the NN interval time series indicating increased percentage of patterns with higher variability (>20 ms).…”

Section: Discussionmentioning

confidence: 99%

Yoga in school sports improves functioning of autonomic nervous system in young adults: A non-randomized controlled pilot study

et al. 2020

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Background Yoga in school is a beneficial tool to promote the good health and well-being of students by changing the way they react to stress. The positive effects of yoga-taught in schools-on children, youth and young adults have been demonstrated in former studies using mostly subjective psychometric data. Aim The present trial aims to evaluate the potential effects of yoga on autonomic regulation in young adults by analyzing heart rate variability (HRV). Methods This study is a non-randomized, explorative, two-arm-pilot study with an active control group. Fourteen healthy young adults took part in a 10-week yoga program (90 min once a week) in school and were compared to a control group of 11 students who participated in conventional school sports (90 min once a week over 10 weeks). 24-hour electrocardiograms (ECGs) were recorded at baseline and following the 10-week intervention. From 20minute of nocturnal sleep phases, HRV parameters were calculated from linear (time and frequency domain) and nonlinear dynamics (such as symbolic dynamics and Poincaré plot analysis). Analyses of variance (ANOVA) followed by t-tests as post-hoc tests estimating both statistical significance and effect size were used to compare pre-post-intervention for the two groups.

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Section: Discussionmentioning

confidence: 99%

Yoga in school sports improves functioning of autonomic nervous system in young adults: A non-randomized controlled pilot study

et al. 2020

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Acute effects of high-intensity interval training and moderate-intensity continuous training on linear and nonlinear heart rate variability measures in arterial hypertension

Mesquita

Silva

Neto

et al. 2021

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Introduction: Systemic arterial hypertension is a chronic disease worldwide. High-intensity interval training (HIIT) has been described as an effective alternative treatment. Objective: To evaluate the acute effects of one HIIT session versus one moderate-intensity continuous training (MICT) on linear and nonlinear heart rate variability (HRV) measures in hypertension patients. Methods: A preliminary cross-sectional study with 11 non-elderly (35 to 59 years) hypertensive patients using drug therapy from both sexes. They were assigned for cardiological evaluation, ergometric test, echocardiography, and cardiopulmonary exercise test. Patients performed cycling exercise in the conditions HIIT (10 bouts of 1-minute at 85% of the maximum power [Pmax] interspersed with 2 minutes at 50% of Pmax) and MICT (30 minutes at 50% of Pmax). R-R intervals (RRi) of HRV were recorded in the supine position for 10 minutes before and after the two exercise conditions. Results: HIIT and MICT presented a significant reduction (P<0.01) for the RRi between baseline (pre-session) and post-session. All other linear indices presented similar results (P>0.05) between moments. Significant differences (P<0.05) in the symbolic HRV analysis were identified only in the HIIT group for 0V, 2LV, and 2ULV indexes. 0V index increased 2.3-times from pre- to post-session while 2LV and 2ULV indexes reduced to near 50% and 35%, respectively. Conclusion: An increase in sympathetic modulation with a significant decrease in vagal modulation by nonlinear HRV measures was identified in patients with hypertension submitted to one HIIT session.

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Age and Gender Dependency of Complexity Measures of Short-Term Heart Rate Time Series

Cited by 2 publications

References 84 publications

Yoga in school sports improves functioning of autonomic nervous system in young adults: A non-randomized controlled pilot study

Yoga in school sports improves functioning of autonomic nervous system in young adults: A non-randomized controlled pilot study

Acute effects of high-intensity interval training and moderate-intensity continuous training on linear and nonlinear heart rate variability measures in arterial hypertension

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