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Dissertations / Theses on the topic 'Variability of breathing'

Author: Grafiati

Published: 2 June 2025

Last updated: 31 July 2025

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1

Fernandes, Vargas Pedro Miguel. "Acute cardiovascular responses to slow and deep breathing." Thesis, Brunel University, 2017. http://bura.brunel.ac.uk/handle/2438/16415.

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Slow and deep breathing (SDB) has long been regarded as a nonpharmacological method for dealing with several physiological and emotional imbalances, and widely used for relaxation purposes. There is, however, limited understanding of the putative mechanisms by which SDB acutely impacts the cardiovascular and autonomic systems to elicit chronic adaptations. The present thesis explored how the manipulation of breathing pattern and intrathoracic pressure during SDB could further the understanding of the regulatory mechanisms that underpin the acute cardiovascular response to SDB. This thesis make

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Tay, Kimberly Sarah. "Effects of Breathing Practice in Vinyasa Yoga on Heart Rate Variability in University Students." Thesis, The University of Arizona, 2015. http://hdl.handle.net/10150/579419.

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Objective: This study investigated the effects of the breathing practice in vinyasa yoga on heart rate variability (HRV) in university students. High HRV is correlated with decreased anxiety and improved performance. It was hypothesized that HRV would increase and heart rate (HR) would decrease after yoga. Design: Thirteen students were enrolled into a 10-week yoga program and asked to attend at least 5 yoga classes. Before and after the class, the students' H RV, and in some cases respiration rate, were measured. Each participant's measures were compared pre and post yoga sessions, and statis

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SUKEGAWA, MAYO, AKIKO NODA, TARO SOGA, et al. "COMPARISON OF SLEEP-DISORDERED BREATHING AND HEART RATE VARIABILITY BETWEEN HEMODIALYSIS AND NON-HEMODIALYSIS DAYS IN HEMODIALYSIS PATIENTS." Nagoya University School of Medicine, 2008. http://hdl.handle.net/2237/10544.

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4

Ledoux, Thomas M. "The Role of Heart Rate Variability in the Treatment of Migraines." Antioch University / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=antioch1427823107.

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5

SANOVA, ANNA ANDREA. "WHAT HAPPENS IN VAGUS: EFFECTS OF YOGIC BREATHING ON AUTONOMIC REGULATION OF HEART RATE EXPLORED WITH PHARMACOLOGICAL BLOCKADES." Thesis, The University of Arizona, 2016. http://hdl.handle.net/10150/614163.

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Heart rate variability (HRV) reflects dynamic variation in sympathetic and parasympathetic nervous system (SNS and PNS) activity. The parasympathetic vagus nerve is responsible for HRV between 0.12 and 0.4 Hz, which is thought to index the capacity for effective coping, and is linked to physical and emotional well-being. Yogic breathing to increase vagal activity is often paced below 0.12 Hz (< 7.2 breaths per minute (BrPM)), where its impact HRV can be due to both sympathetic and parasympathetic mechanisms. Five healthy volunteers completed three pharmacological blockade sessions (plac

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Trasko, Carolyn. "Effects of Diaphragmatic Breathing and Guided Imagery on Heart Rate Variability, Interleukin-1 Beta, and Mood in Adult Women with Thyroid Diseases." Thesis, Saybrook University, 2018. http://pqdtopen.proquest.com/#viewpdf?dispub=10828223.

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<p> Chronic diseases, specifically autoimmune disorders, take an enormous physical, psychological, and financial toll on patients, families, and the healthcare system. Mainstream biomedicine offers limited solutions outside of pharmacological interventions. Mind-Body Medicine (MBM) lifestyle intervention strategies offer low-cost, low-risk options to reducing stress and managing health. A review of relevant biomedical literature regarding effects of cumulative stress on psychological and physiological health was completed. To my knowledge, this is the first study to analyze the effects of rela

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Cruz, Marina Zuanazzi [UNESP]. "A respiração como ferramenta para a autorregulação psicofisiológica em crianças pré-escolares: um estudo baseado na variabilidade da frequência cardíaca." Universidade Estadual Paulista (UNESP), 2016. http://hdl.handle.net/11449/143970.

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Submitted by Marina Zuanazzi Cruz null (marinazc@hotmail.com) on 2016-09-21T14:18:58Z No. of bitstreams: 1 Tese - Marina Z. Cruz - final.pdf: 1398751 bytes, checksum: c4afab40b411c2d5066794106ac0d9a5 (MD5)<br>Approved for entry into archive by Juliano Benedito Ferreira (julianoferreira@reitoria.unesp.br) on 2016-09-26T19:08:39Z (GMT) No. of bitstreams: 1 cruz_mz_dr_bot.pdf: 1398751 bytes, checksum: c4afab40b411c2d5066794106ac0d9a5 (MD5)<br>Made available in DSpace on 2016-09-26T19:08:39Z (GMT). No. of bitstreams: 1 cruz_mz_dr_bot.pdf: 1398751 bytes, checksum: c4afab40b411c2d5066794106ac0d9

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Ricci, Matteo. "La stimolazione del Nervo Vago attraverso la pratica di tecniche respiratorie ai fini della neuroimmunomodulazione del riflesso infiammatorio: a Scoping Review." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2020. http://amslaurea.unibo.it/21932/.

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Introduzione: I neuroni colinergici ricoprono un ruolo importante nella regolazione dei processi flogistici, tale scoperta ha portato la ricerca scientifica ad approfondire questo aspetto, provando che la stimolazione del Nervo Vago può essere utilizzata nel trattamento delle patologie infiammatorie. La respirazione potrebbe essere una tecnica volta a stimolare il Nervo Vago, inducendo cosi spostamenti nell’equilibrio simpatico-vagale verso una predominanza parasimpatica, con i conseguenti riflessi anti-infiammatori. Materiali e metodi: È stata effettuata una prima ricerca in letteratura per

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9

Saboul, Damien. "Apports de la variabilité de la fréquence cardiaque dans l'évaluation de la charge d'entraînement et le suivi d'athlètes : aspects méthodologiques et applications pratiques." Thesis, Lyon 1, 2013. http://www.theses.fr/2013LYO10083/document.

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Au cours des années 1980, il y a été prouvé que l’étude de la variabilité de la fréquence cardiaque (VFC) permet d’estimer de façon non invasive l’activité du système nerveux autonome. Plus spécifiquement, de nombreux travaux démontrent que des enregistrements réguliers de la VFC peuvent rendre compte de la capacité d’adaptation d’un athlète à l’entraînement mais également de son état de fatigue. Bien que plusieurs auteurs suggèrent d’utiliser cet outil directement sur le terrain, il semblerait que l’absence de méthodologie commune et unifiée rende parfois difficile l’interprétation des résult

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Castro, Renata Rodrigues Teixeira de. "Variabilidade ventilatória durante exercício dinâmico em indivíduos saudáveis e com insuficiência cardíaca." Universidade do Estado do Rio de Janeiro, 2010. http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=4770.

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A presença de ventilação periódica durante o exercício confere pior prognóstico a pacientes com insuficiência cardíaca. Existem divergências quanto aos critérios para identificação deste fenômeno. Além disso, a interpretação dicotômica (presença ou ausência) quanto a este fenômeno dificulta a estratificação de risco mais detalhada dos pacientes com insuficiência cardíaca. Desta forma, esta tese avalia a utilização de técnicas estabelecidas para análise de variabilidade de sinais para quantificar as oscilações ventilatórias que ocorrem durante o teste cardiopulmonar de exercício, em indivíd

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Bennington, J. Bret. "Community persistence and the pattern of community variability over time : a test using fossil assemblages from four marine transgressions in the Breathitt Formation (Middle Pennsylvanian) of Eastern Kentucky /." Diss., This resource online, 1995. http://scholar.lib.vt.edu/theses/available/etd-10052007-143840/.

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12

Hsueh, Meng-Lun, and 薛孟倫. "Using Spextral Analysis to Investigate Breathing Pattern Variability of Weaning." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/38461007959283803019.

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碩士<br>國立臺灣大學<br>電機工程學研究所<br>90<br>The human body regulates circulatory and respiratory system to reflect internal and external environmental changes. In physiology, these environmental changes are so called “stress ”. This stress would change the equilibrium states of human bodies and result in physiological reactions. These could generally be sorted out into two classes: one is emergency conditions, which could deal with emergency conditions so that individuals could be self-protected; the other is physiologic reaction under long-term stress. This research is to simulate emergenc

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13

Chung, Wei-Li, and 鍾維勵. "The immediate effects of different breathing protocols on blood pressure, baroreflex sensitivity, heart rate variability and blood pressure variability." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/27236024245551050580.

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碩士<br>國立陽明大學<br>物理治療學系暨研究所<br>95<br>Background and purpose：The impact of hypertension on health needs to be controlled and prevented. The slow and regular breathing has been shown capable of lowering blood pressure (BP), and its efficacy of BP reduction is comparable to medication and healthy lifestyle modification. It is hypothesized that reduction of respiratory rate lowers BP via the reflexive cardiovascular control system, including increased baroreflex sensitivity (BRS) and cardiovascular autonomic function. However, the other breathing control components, such as breathing depth and patt

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Bien, Mauo-Ying, and 邊苗瑛. "Breathing Pattern Variability in Patients with Systemic Inflammatory Response Syndrome or Persistent Vegetative State." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/79825846055512767205.

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博士<br>國立陽明大學<br>生理學研究所<br>92<br>The breathing pattern in normal subjects displays a certain variability, which is maintained by a central neural mechanism, feedback loops of arterial chemoreceptors and lung vagal sensory receptors, and cortical influences. Deviations in breathing pattern variability from the normal level have been found in individuals in pathological conditions. Quantitative methods, including calculations of coefficients of variation, the Poincaré plot, and the spectral analysis have been applied to analyze the breathing pattern variability to serve as indicators of pathoph

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15

Lin, Hsin-Pin, and 林昕頻. "The Effect of Different Breathing Patterns on Respiratory Resonance Frequency and Heart Rate Variability." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/fmj3p6.

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碩士<br>臺北市立大學<br>運動健康科學系碩士班<br>106<br>Introduction: Yoga studies reported that breathing with one side of nostril can influence autonomic nervous function and blood pressure. However, effects of using breathing patterns with nostrils, mouth, or alternation on autonomic nervous regulation and respiratory resonance frequency is unknown. Purpose: to investigate the effects of four breathing patterns (mouth breathing only, nostrils breathing only, breathing pattern with nostrils inhale in mouth exhale and breath pattern with mouth inhale and nostrils exhale) on respiratory resonance frequency and

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16

Tai, Ru-Chun, and 戴如君. "The Effects of Abdominal Breathing Training on Heart Rate Variability in Coronary Heart Disease Patients." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/39611880614291836446.

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碩士<br>臺北醫學大學<br>護理學研究所<br>98<br>Abstract Title of Thesis: The Effect of Abdominal Breathing Training on Heart Rate Variability in Coronary Heart Disease Patients Institution: Graduate Institute of Nursing, Taipei Medical University Author: Ru-Chun Tai Thesis directed by: Pei-Shan Tsai, Professor, Graduate Institute of Nursing, Colledge of Nursing, Taipei Medical University The purpose of this study was to investigate the effect of abdominal breathing training on heart rate variability (HRV) in coronary heart disease (CAD) patients. A total of 67 patients diagnosed with coronary heard disease w

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17

Pagaduan, JC. "Neuromuscular, cardiovascular, and cortical responses to heart rate variability biofeedback." Thesis, 2021. https://eprints.utas.edu.au/38369/1/Pagaduan_whole_thesis_ex_pub_mat.pdf.

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Background Heart rate variability biofeedback (HRV BFB) is a paced breathing scheme that triggers resonance in the cardiovascular system. Whilst HRV BFB approaches have been administered in performance enhancement settings, there seems to be a scarcity in systematic literature investigating performance parameters under HRV BFB. There is also no meta-analysis that examined the effects of HRV BFB on physiological indices. In addition, there has been no study that explored neuromuscular function in HRV BFB. Lastly, there have been limited underpinnings in vagal afferent pathway with HRV BFB.

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18

Lin, Jing-Yun, and 林靖芸. "Breathing and Lower Limb Training Improves Heart Rate Variability and Muscle Strength for Stroke Patients in Rehabilitation." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/59166026958689103645.

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碩士<br>國立臺北護理健康大學<br>護理研究所<br>103<br>Background: According to World Health Organization, 550 million people died for stroke, which is among the world's top ten leading causes of death in 2013. Stroke is the third leading cause of death in Taiwan, with the mortality rate of 48.5%. It affects patient’s heart rate variability (HRV), muscle strength, and anxiety, which can be improved by self-regulation of breath and exercise. Aims: This study aimed to evaluate the effect of breathing and limb training on improving HRV, muscle strength, anxiety, and quality of life in stroke patients during the reh

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19

Chang, Shu-Chun, and 張淑君. "The Effects of Breathing Relaxation Therapy on Pain and Heart Rate Variability in Patients after Cardiac Surgery." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/51136023621346308196.

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碩士<br>國立成功大學<br>護理學系碩博士班<br>93<br>The purpose of this study was to investigate the effects of breathing relaxation therapy for patients with cardiac surgery. The relationship between the degrees of pain and heart rate variability were also examined. The design of this study was crossover design with purposive sampling. Fifteen participants with cardiac surgeries were invited to participate. Participants entered into the sequence of experimental and control period, or control and experimental period randomly. 　The outcome indicators included the degrees of pain and heart rate variability. The d

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"Electrocardiogram breathing: A study of electrocardiogram derived respiration plus multiresolution wavelet analysis of heartbeat interval variability in sleep study patients." FLORIDA INTERNATIONAL UNIVERSITY, 2007. http://pqdtopen.proquest.com/#viewpdf?dispub=3268674.

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21

Chung, Li-Jung, and 鍾麗容. "The Effects of Abdominal Breathing Training on Heart Rate Variability and Depressive Level in Coronary Heart Disease Patients With Depressive Symptoms." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/94870236121269489655.

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碩士<br>臺北醫學大學<br>護理學研究所<br>97<br>The purpose of this study was to investigate the effects of abdominal breathing training on heart rate variability and depressive level in coronary heart disease patients with depressive symptoms, and to further explore the question of whether changes in heart rate variability are related to changes in depression. A total of 62 patients diagnosed with coronary heart disease were included. All participants had a Beck Depression Inventory (BDI) score of greater than 10. Participants were randomly assigned to receive abdominal breathing training (experimental group

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22

Hung, Pei-Yu, and 洪佩瑜. "The Effect of Different Breathing Methods Using Incentive Spirometry on Pulmonary Function and Heart Rate Variability in Patients after Cardiac Surgery." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/45366974238209084254.

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碩士<br>國立成功大學<br>護理學系碩博士班<br>96<br>Incentive spirometry has been commonly used to prevent postoperative lung atelectasis and pulmonary complications in patients who received cardiac surgery. However, clinically when using the incentive spirometry, patients often breathe through the method of stretching their chest unless clinical experts remind them to use abdominal breathing. The aim of this study was to examine the different breathing methods in using incentive spirometry on pulmonary function and heart rate variability in patients after cardiac surgery. An experimental design was utilized in

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23

Chien, Hui-Ching, and 簡惠卿. "Effects of Cognitive Behavior Intervention Combined with Relaxing Breathing on Depression Level, Sleep Quality and Heart rate variability in Patients with Depression." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/18134997442350956161.

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博士<br>國立臺北護理健康大學<br>護理研究所<br>102<br>Depression is a common mental illness, this disease can lead to personal dysfunction. World Health Organization has been estimated in 2020, depression will be the impact on human life, ranking second feature of the disease. Studies have shown that cognitive behavior therapy can teach patients to change their cognitive errors, to improve their depression level. Through cognitive behavior relaxing breathing therapy to help patients relax and improve sleep qality and heart rate variability. Therefore, this study use the cognitive behavior relaxing breathing gro

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