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  1. 41

    Heart rate variability and increased risk for developing type 2 diabetes mellitus by Penčić-Popović Biljana, Ćelić Vera, Ćosić Zoran, Pavlović-Kleut Milena, Čaparević Zorica, Kostić Nada, Milovanović Branislav, Šljivić Aleksandra, Stojčevski Biljana

    Published 2014-01-01
    “…The aim of this study was to evaluate the association between heart rate variability (HRV) and slightly increased risk for DM2. …”
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    Article
  2. 42

    Features of Clinical Manifestations and Heart Rate Variability in Children with Malignant Vasovagal Syncope by Wenrui Xu, Chunyu Zhang, Junbao Du, Hongfang Jin, Ying Liao

    Published 2025-05-01
    “…Clinical characteristics and heart rate variability (HRV) parameters were analyzed. …”
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    Article
  3. 43

    Changes in heart rate variability in patients with hypertension under outpatient stage treatment by V. I. Koshlia, Mouna Ben-Abid

    Published 2015-12-01
    “…Actuality of the heart rate variability study in patients with hypertension is underlined with high risk of hypertension complications development and the influence of the autonomic nervous system that changes the tone, affects not only the course of the disease but also increases the risk of death. …”
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    Article
  4. 44

    Effect of Amiodarone, Sotalol and Bisoprolol on Heart Rate Variability in Patients with Atrial Fibrillation by E. P. Popova, S. S. Puzin, O. T. Bogova, S. N. Puzin, D. A. Sychev, V. P. Fisenko

    Published 2020-11-01
    “…Spectral analysis of heart rate variability of 5-minute electrocardiography intervals was used. …”
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    Article
  5. 45

    EFFECT OF BRONCHODILATORS ON HEART RATE VARIABILITY IN PATIENTS WITH CHRONIC OBSTRUCTIVE PULMONARY DISEASE by H. H. Shugushev, M. V. Gurizeva, V. M. Vasilenko

    Published 2015-12-01
    “…Treatment with both drugs led to increase in power of low- and high frequencies and their ratio (LF/HF), decrease in rate of supraventricular and ventricular arrhythmias. …”
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    Article
  6. 46

    The impact of long COVID on heart rate variability: a cross-sectional study by Minyu Qin, Kwan Lee, Seok-Ju Yoo

    Published 2025-02-01
    “…Therefore, during the LC phase, ANS status was evaluated in patients with mild-to-moderate COVID-19 using heart rate variability (HRV), a measurement of ANS function. …”
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    Article
  7. 47

    Optimizing Mental Stress Detection via Heart Rate Variability Feature Selection by Mohsen Behradfar, Shotabdi Roy, Joseph Nuamah

    Published 2025-07-01
    “…The results demonstrate that two heart rate variability features—the median absolute deviation of the RR intervals (the time elapsed between consecutive R-waves on an electrocardiogram), which is normalized by the median, and the normalized low frequency power—consistently distinguished the stress states across multiple classifiers. …”
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    Article
  8. 48

    Precise GNSS Positioning with Time-differenced Carrier Phases at Variable Sampling Rates by S. Guo, H. Yang, Y. Gao

    Published 2025-07-01
    “…In this study, we extend TDCP to estimate position at different sampling rates and with high accuracy. We investigate and develop a GNSS software-defined radio (SDR) receiver to implement variable sampling-rate capability at low-cost. …”
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    Article
  9. 49

    Posttraining Dry Cupping Treatment Elevates Heart Rate Variability in Taekwondo Athletes by Chi-Cheng Lu, Bao-Lien Hung, Ai-Chi Zheng, Yi-Ying Chen, Shih-Hua Fang

    Published 2025-04-01
    “…This study aimed to investigate the effects of dry cupping posttraining on heart rate variability (HRV) and recovery in TKD athletes. …”
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    Article
  10. 50

    Heart Rate Variability and Cardiovascular Reflex Tests for Assessment of Autonomic Functions in Preeclampsia by Meenakshi Chaswal, Raj Kapoor, Achla Batra, Savita Verma, Bhupendra S. Yadav

    Published 2018-01-01
    “…Assessment of autonomic functions was done by cardiovascular reflex tests and by analysis of heart rate variability (HRV). Cardiovascular reflex tests included deep breathing test (DBT) and lying to standing test (LST). …”
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    Article
  11. 51

    Heart Rate Variability in Patients with Hypertension: the Effect of Metabolic Syndrome and Antihypertensive Treatment by Małgorzata Maciorowska, Paweł Krzesiński, Robert Wierzbowski, Grzegorz Gielerak

    Published 2020-01-01
    “…The purpose of this study was to assess the effects of antihypertensive treatment on heart rate variability (HRV) in patients with hypertension (HTN), depending on cooccurrence of MetS. 118 patients with uncontrolled HTN were enrolled to the study. …”
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    Article
  12. 52

    Biostrap Kairos Wristband Versus Electrocardiography for Resting Heart Rate Variability Assessment by Andrew A. Flatt, Ann Claire E. Blalock, Allison N. Wade, Bryan L. Riemann

    Published 2025-05-01
    “…The Kairos wristband offers on-demand heart rate variability (HRV) assessment through its “Spot Check” feature, enabling standardized recordings for clinical, research, or self-tracking purposes, but its validity is untested. …”
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    Article
  13. 53

    AGE-RELATED CHANGES IN HEART RATE VARIABILITY AND THEIR RELATION WITH LEUCOCYTE TELOMERE LENGTH by L. I. Streltsova, О. N. Tkacheva, E. V. Plokhova, D. U. Akasheva, I. D. Strajesko, E. N. Dudinskaya, S. А. Boytsov

    Published 2017-02-01
    “…To assess the  relation of age-depended changes  in heart  rate variability (HRV) with telomere  length.  With the  age,  even  with no cardiovascular  diseases (CVD), there  is a decline of HRV which is an indicator of vegetative system condition. …”
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    Article
  14. 54
  15. 55

    LTPO-TFT-Based Pixel Circuit With TFT, OLED, and Supply Voltage Compensation for Enhanced Luminance Uniformity in Variable-Frame-Rate AMOLED Smartwatch Displays by Jui-Hung Chang, Cheng-Han Ke, Chia-Lun Lee, Po-Cheng Lai, Chi-Hsuan Huang, Li-Wei Shih, Chih-Lung Lin

    Published 2025-01-01
    “…This work proposes a new pixel circuit using low-temperature polycrystalline silicon and oxide (LTPO) thin-film transistors (TFTs) for use in variable-frame-rate active-matrix organic light-emitting diode (AMOLED) smartwatch displays. …”
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    Article
  16. 56

    Autonomic modulation and skeletal muscle oxygenation with intermittent low-load blood flow restriction knee extension by Andrew R. Garner, Jacob D. Fanno, Ryan McGrath, Jacob Erickson, Kyle J. Hackney

    Published 2025-03-01
    “…Heart rate variability (HRV) metrics: logarithmically transformed (ln) square root of the mean differences of successive R-R intervals (lnRMSSD), high frequency power (lnHF), and low frequency power (lnLF), as well as SmO2%, and rating of perceived exertion (RPE) were measured. …”
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    Article
  17. 57

    HEART RATE VARIABILITY, VENTRICULAR LATE POTENTIALS AND HEART RATE TURBULENCE AS INDICATORS OF CORONARY REPERFUSION IN ST SEGMENT ELEVATION MYOCARDIAL INFARCTION by E. A. Shigotarova, E. V. Dushina, V. A. Galimskaya, V. E. Oleynikov

    Published 2017-12-01
    “…The dynamics of the temporal and spectral characteristics of heart rate variability (HRV), presence of ventricular late potentials (VLP) and abnormal heart rate turbulence (HRT) were evaluated.Results. …”
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    Article
  18. 58

    Effects of rehabilitation programs on heart rate variability after stroke: a systematic review by Thais Regina Belli, Luciane Aparecida Pascucci Sande de Souza, Silméia Garcia Zanati Bazan, Rodrigo Bazan, Gustavo José Luvizutto

    Published 2021-09-01
    “…ABSTRACT Background: It has been shown that the autonomic nervous system can be modulated by physical exercise after stroke, but there is a lack of evidence showing rehabilitation can be effective in increasing heart rate variability (HRV). Objective: To investigate the effectiveness and safety of rehabilitation programs in modulating HRV after stroke. …”
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    Article
  19. 59

    Meningococcal meningitis: clinical and laboratorial characteristics, fatality rate and variables associated with in-hospital mortality by Vanessa L. Strelow, Érique José F. Peixoto de Miranda, Karin R. Kolbe, Juliana V. Souza Framil, Augusto Penalva de Oliveira, José E. Vidal

    “…The classic clinical and laboratory triads of meningococcal meningitis were variable. The fatality rate was low. Age, seizures and shock signs were independently associated with mortality.…”
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  20. 60

    The impact of resistance training on heart rate variability parameters in physically active young adults by Gabriel Marcelino Barbosa, Helyel Rodrigues Gobbo, Lucas Cezar de Oliveira, Anderson Pontes Morales, Gustavo Vieira de Oliveira

    Published 2025-04-01
    “…Abstract Background Heart rate variability (HRV) parameters are an important indicator of cardiovascular health. …”
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    Article