How to Stimulate Your Vagus Nerve for Better Mental Health Adapted from - January 21, 2017 Jordan Fallis
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Heart Rate Variability
Heart Rate Variability Jason Moore Elite HRV EliteHRV.com EliteHRV.com EliteHRV.com EliteHRV.com EliteHRV.com Start with the big picture. With the big picture in mind, drill into the details. EliteHRV.com The Bigger Picture of Human Health • Your body and mind (and symbiotic organisms) versus the world • The world is stressful EliteHRV.com Environmental Societal Mental Digestive STRESS Physical Structural Social *Not an exhaustive list Emotional EliteHRV.com The Bigger Picture of Human Health • Adaptive biological organisms • Health issues occur when: • Acute stress exceeds chronic adaptation • or • A strong/chronic mismatch between our genes and our environment EliteHRV.com Why Heart Rate Variability (HRV)? HRV can non-invasively measure the body’s response to stress, and with enough data, its capacity to tolerate stress. • Systemic, big picture metric • Was expensive, now cheap and accessible • Short, frequent measurements open new doors EliteHRV.com HRV 101 • Temporal variation in heart beats • Requires high degree of accuracy • Many algorithms/calculations EliteHRV.com HRV 101 – Autonomic Nervous System Sympathetic Parasympathetic Nervous System (SNS) Nervous System (PSNS) ● Controls stimulation of ● Controls stimulation of “fight-or-flight” stress “rest-and-digest” activities response essential for recovery ● Needed for short term ● Needed for long term survival survival ● Associated with stress EliteHRV.com EliteHRV.com HRV In The Research • Decades of research • 20,000+ studies in PubMed • Increasing rapidly • Still a lot to learn EliteHRV.com In 778 athletes, HRV indices of ANS activity show strong correlation with selection for Olympic games for the Italian team Can the use of a single integrated unitary autonomic index provide early clues for eventual eligibility for olympic games? Daniela Lucini, Roberto Sala, Antonio Spataro, Mara Malacarne, Manuela Benzi, Stefano Tamorri, Massimo Pagani https://link.springer.com/article/10.1007/s00421-018-3822-2 EliteHRV.com HRV indexes worry in individuals spanning the non- clinical to clinical spectrum. -
6 Ways to Instantly Stimulate Your Vagus Nerve to Relieve Inflammation, Depression, Migraines and More
O 6 WAYS TO INSTANTLY STIMULATE YOUR VAGUS NERVE TO RELIEVE INFLAMMATION, DEPRESSION, MIGRAINES AND MORE I read an article yesterday that has me extremely excited about the implications. The article is called “Hacking the Nervous System” by Gaia Vince (http://mosaicscience.com/story/hacking-nervous-system). In the article, the author describes the experience of a woman who suffered from severe, debilitating rheumatoid arthritis and her eventual treatment with a device which minimized inflammation by simply stimulating the vagus nerve. What this means, is that by activating the vagus nerve which works through the parasympathetic nervous system, we can greatly influence inflammation and the immune system. The role of the brain on body inflammation can be profound. If you suffer from digestive complaints, high blood pressure, depression or any inflammatory condition, please read on. Let me explain the possible implications step by step. What is the vagus nerve? First of all, the vagus nerve is the longest nerve in the body which originates in the brain as cranial nerve ten, travels down the from go the neck and then passes around the digestive system, liver, spleen, pancreas, heart and lungs. This nerve is a major player in the parasympathetic nervous system, which is the ‘rest and digest’ part (opposite to the sympathetic nervous system which is ‘fight of flight’). Vagal tone The tone of the vagus nerve is key to activating the parasympathetic nervous system. Vagal tone is measured by tracking your heart-rate alongside your breathing rate. Your heart-rate speeds up a little when your breathe in, and slows down a little when you breathe out. -
Questions and Answers About Vagus Nerve Stimulation by Jerry Shih, M.D. 1. WHAT IS VAGUS NERVE STIMULATION? Therapeutic Vagus Ne
Questions and Answers About Vagus Nerve Stimulation By Jerry Shih, M.D. 1. WHAT IS VAGUS NERVE STIMULATION? Therapeutic vagus nerve stimulation (VNS) is chronic, intermittent electrical stimulation of the mid-cervical segment of the left vagus nerve. The stimulation occurs automatically at set intervals, during waking and sleep. The electrical pulses are generated by a pacemaker-like device that is implanted below the clavicle and are delivered by a lead wire that is coiled around the vagus nerve. 2. WHAT IS THE EVIDENCE THAT VAGUS NERVE STIMULATION IS EFFECTIVE IN EPILEPSY? The empirical evidence of antiepileptic efficacy arose sequentially from l) experiments in animal models of epilepsy; 2) anecdotal reports and small case series ofearly human trials, and 3) two prospec-tive, double-blind, controlled studies in large groups of patients with complex partial and secondarily generalized seizures. 3. HOW DOES VAGUS NERVE STIMULATION CONTROL SEIZURES? The mechanisms by which therapeutic VNS reduces seizure activity in humans and in experimental models of epilepsy are unknown. 4. WHEN SHOULD ONE CONSIDER VAGUS NERVE STIMULATION? Medically refractory complex partial and secondarily generalized seizures have been efficaciously treated with adjunctive VNS in the large, randomized studies. Children may benefit considerably from VNS, but large-scale, randomized, controlled studies have not been completed in young children. Thus, any adolescent or adult whose complex partial or secondarily generalized seizures have not been controlled with the appropriate first- and second -line antiepileptic drugs may be a good candidate for VNS. The FDA has specifically approved VNS with the Cyberonics device for adjunctive therapy of refractory partial-onset seizures in persons l2 years of age. -
FEATURE Heart Rate Variability Biofeedback As a Strategy for Dealing with Competitive Anxiety: a Case Study
Biofeedback ©Association for Applied Psychophysiology & Biofeedback Volume 36, Issue 3, pp. 109–115 www.aapb.org FEATURE Heart Rate Variability Biofeedback as a Strategy for Dealing with Competitive Anxiety: A Case Study Leah Lagos,1 Evgeny Vaschillo,1 Bronya Vaschillo,1 Paul Lehrer,2 Marsha Bates,1 and Robert Pandina1 1 Center of Alcohol Studies, Rutgers, The State University of New Jersey, New Brunswick, NJ; 2University of Medicine and Dentistry of New Jersey, Department of Psychiatry, Piscataway, NJ Keywords: biofeedback, heart rate variability, golf, competitive stress, optimal performance Heart rate variability (HRV) biofeedback (BFB) is a relatively well in response to internal body rhythms, many of which new approach for helping athletes to regulate competitive reflect various homeostatic control systems. In general, high stress. To investigate this phenomenon further, a qualitative HRV represents a flexible ANS that is responsive to both case study examined the impact of HRV BFB on the mood, internal and external stimuli and is associated with fast physiology, and sport performance of a 14-year-old golfer. reactions and adaptability. Diminished HRV, on the other The golfer met once per week at a university lab for 10 hand, represents a less transient, less flexible ANS that is consecutive sessions of HRV BFB training that included less able to respond to stimuli change (Giardino, Lehrer, breathing at a frequency of 0.1 Hz. The format and duration of & Feldman, 2000). It follows that HRV may provide a sessions followed the HRV BFB protocol outlined previously promising index of an athlete’s ability to respond to both by Lehrer, Vaschillo, and Vaschillo. -
Heart Rate Variability (HRV) Biofeedback: a New Training Approach for Operator's Performance Enhancement
A Service of Leibniz-Informationszentrum econstor Wirtschaft Leibniz Information Centre Make Your Publications Visible. zbw for Economics Sutarto, Auditya Purwandini; Wahab, Muhammad Nubli Abdul; Nora Mat Zin Article Heart Rate Variability (HRV) biofeedback: A new training approach for operator's performance enhancement Journal of Industrial Engineering and Management (JIEM) Provided in Cooperation with: The School of Industrial, Aerospace and Audiovisual Engineering of Terrassa (ESEIAAT), Universitat Politècnica de Catalunya (UPC) Suggested Citation: Sutarto, Auditya Purwandini; Wahab, Muhammad Nubli Abdul; Nora Mat Zin (2010) : Heart Rate Variability (HRV) biofeedback: A new training approach for operator's performance enhancement, Journal of Industrial Engineering and Management (JIEM), ISSN 2013-0953, OmniaScience, Barcelona, Vol. 3, Iss. 1, pp. 176-198, http://dx.doi.org/10.3926/jiem.v3n1.p176-198 This Version is available at: http://hdl.handle.net/10419/188419 Standard-Nutzungsbedingungen: Terms of use: Die Dokumente auf EconStor dürfen zu eigenen wissenschaftlichen Documents in EconStor may be saved and copied for your Zwecken und zum Privatgebrauch gespeichert und kopiert werden. personal and scholarly purposes. Sie dürfen die Dokumente nicht für öffentliche oder kommerzielle You are not to copy documents for public or commercial Zwecke vervielfältigen, öffentlich ausstellen, öffentlich zugänglich purposes, to exhibit the documents publicly, to make them machen, vertreiben oder anderweitig nutzen. publicly available on the internet, or to distribute or otherwise use the documents in public. Sofern die Verfasser die Dokumente unter Open-Content-Lizenzen (insbesondere CC-Lizenzen) zur Verfügung gestellt haben sollten, If the documents have been made available under an Open gelten abweichend von diesen Nutzungsbedingungen die in der dort Content Licence (especially Creative Commons Licences), you genannten Lizenz gewährten Nutzungsrechte. -
Current Neurosurgical Management of Glossopharyngeal Neuralgia and Technical Nuances for Microvascular Decompression Surgery
Neurosurg Focus 34 (3):E8, 2013 ©AANS, 2013 Current neurosurgical management of glossopharyngeal neuralgia and technical nuances for microvascular decompression surgery ROBERTO REY-DIOS, M.D.,1 AND AARON A. COHEN-GADOL, M.D., M.SC.2 1Department of Neurosurgery, University of Mississippi Medical Center, Jackson, Mississippi; 2Goodman Campbell Brain and Spine, Indiana University Department of Neurological Surgery, Indianapolis, Indiana Glossopharyngeal neuralgia (GPN) is an uncommon facial pain syndrome often misdiagnosed as trigeminal neuralgia. The rarity of this condition and its overlap with other cranial nerve hyperactivity syndromes often leads to a significant delay in diagnosis. The surgical procedures with the highest rates of pain relief for GPN are rhizotomy and microvascular decompression (MVD) of cranial nerves IX and X. Neurovascular conflict at the level of the root exit zone of these cranial nerves is believed to be the cause of this pain syndrome in most cases. Vagus nerve rhizotomy is usually reserved for cases in which vascular conflict is not evident. A review of the literature reveals that although the addition of cranial nerve X rhizotomy may improve the chances of long-term pain control, this maneuver also increases the risk of permanent dysphagia and vocal cord paralysis. The risks of this procedure have to be carefully weighed against its benefits. Based on the authors’ experience, careful patient selection with a thorough exploratory operation most often leads to identification of the site of vascular conflict, obviating the need for cranial nerve X rhizotomy. (http://thejns.org/doi/abs/10.3171/2012.12.FOCUS12391) KEY WORDS • glossopharyngeal neuralgia • microvascular decompression • vagus nerve • rhizotomy • cranial nerve LOSSOPHARYNGEAL neuralgia, or vagoglossopharyn impairment can be found in the distribution of the above geal neuralgia, is a cranial nerve hyperactivity nerves due to structural lesions.20 This classification does pain syndrome leading to severe, transient, sharp not take into consideration associated syncopal events. -
Heart Rate Variability in Patients with Cirrhosis: a Systematic Review and Meta-Analysis
medRxiv preprint doi: https://doi.org/10.1101/2021.01.20.21249506; this version posted January 20, 2021. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted medRxiv a license to display the preprint in perpetuity. It is made available under a CC-BY-ND 4.0 International license . Heart Rate Variability in Patients with Cirrhosis: A Systematic Review and Meta-analysis Tope Oyelade1* ([email protected]), Gabriele Canciani2, Gabriele Carbone2, Jaber Alqahtani3,4, Kevin Moore1, Ali R. Mani1. 1. Institute for Liver and Digestive Health, Division of Medicine, University College London, London NW3 2PF, UK. 2. School of Medicine, La Sapienza University, Rome 00185, Italy. 3. Respiratory Medicine, Division of Medicine, University College London, London NW3 2PF, UK. 4. Department of Respiratory Care, Prince Sultan Military College of Health Sciences, Dammam, Saudi Arabia. * Corresponding Author NOTE: This preprint reports new research that has not been certified by peer review and should not be used to guide clinical practice. medRxiv preprint doi: https://doi.org/10.1101/2021.01.20.21249506; this version posted January 20, 2021. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted medRxiv a license to display the preprint in perpetuity. It is made available under a CC-BY-ND 4.0 International license . Abstract: Background: Cirrhosis is associated with abnormal autonomic function and regulation of cardiac rhythm. Measurement of heart rate variability (HRV) provides an accurate and non-invasive measurement of autonomic function as well as liver disease severity currently calculated using the MELD, UKELD, or ChildPugh scores. -
Characterisation of Breathing and Associated Central Autonomic
Arch Dis Child 2001;85:29–37 29 Characterisation of breathing and associated Arch Dis Child: first published as 10.1136/adc.85.1.29 on 1 July 2001. Downloaded from central autonomic dysfunction in the Rett disorder P O O Julu, A M Kerr, F Apartopoulos, S Al-Rawas, I Witt Engerström, L Engerström, G A Jamal, S Hansen Abstract is associated with non-epileptic vacant spells.11 Aim—To investigate breathing rhythm Low resting cardiac vagal tone and weak vagal and brain stem autonomic control in response to hyperventilation and breath hold- patients with Rett disorder. ing suggest inadequate parasympathetic con- Setting—Two university teaching hospi- trol.12 tals in the United Kingdom and the Rett Our aim in this study was to characterise the Centre, Sweden. abnormalities of respiratory rhythm and inves- Patients—56 female patients with Rett tigate the central autonomic competence in disorder, aged 2–35 years; 11 controls aged Rett disorder. 5–28 years. Design—One hour recordings of breath- ing movement, blood pressure, ECG R-R Methods interval, heart rate, transcutaneous blood SUBJECTS Fifty six subjects were referred for diagnostic gases, cardiac vagal tone, and cardiac assessment. Control values came from 11 sensitivity to baroreflex measured on-line female volunteers and from previous with synchronous EEG and video. Breath- studies.12–14 Parents received written explana- ing rhythms were analysed in 47 cases. tions of procedures and results and provided Results—Respiratory rhythm was normal consent. The ethics committee at South during sleep and abnormal in the waking Glasgow University Hospitals NHS Trust state. -
Influence of Inhalation/Exhalation Ratio and of Respiratory
sustainability Article Slow-Paced Breathing: Influence of Inhalation/Exhalation Ratio and of Respiratory Pauses on Cardiac Vagal Activity Sylvain Laborde 1,2,* , Maša Iskra 1, Nina Zammit 1, Uirassu Borges 1,3, Min You 4, Caroline Sevoz-Couche 5 and Fabrice Dosseville 6,7 1 Department of Performance Psychology, Institute of Psychology, German Sport University Cologne, Cologne 50933, Germany; [email protected] (M.I.); [email protected] (N.Z.) 2 UFR STAPS, EA 4260 CESAMS, Normandie Université, 14000 Caen, France 3 Department of Health & Social Psychology, Institute of Psychology, German Sport University Cologne, 50933 Cologne, Germany; [email protected] 4 UFR Psychologie, EA3918 CERREV, Normandie Université, 14000 Caen, France; [email protected] 5 INSERM, Unité Mixte de Recherche (UMR) S1158 Neurophysiologie Respiratoire Expérimentale et Clinique, Sorbonne Université, 75000 Paris, France; [email protected] 6 UMR-S 1075 COMETE, Normandie Université, 14000 Caen, France 7 INSERM, UMR-S 1075 COMETE, 14000 Caen, France; [email protected] * Correspondence: [email protected]; Tel.: +49-221-49-82-57-01 Abstract: Slow-paced breathing has been shown to enhance the self-regulation abilities of athletes via its influence on cardiac vagal activity. However, the role of certain respiratory parameters (i.e., inhalation/exhalation ratio and presence of a respiratory pause between respiratory phases) still needs to be clarified. The aim of this experiment was to investigate the influence of these respiratory Citation: Laborde, S.; Iskra, M.; parameters on the effects of slow-paced breathing on cardiac vagal activity. A total of 64 athletes Zammit, N.; Borges, U.; You, M.; (27 female; Mage = 22, age range = 18–30 years old) participated in a within-subject experimental Sevoz-Couche, C.; Dosseville, F. -
Heart Rate Variability Analysis System
Heart Rate Variability Analysis System Clinical Information VERSION 3.O. SA - 3000P Clinical Manual Clinical 3000P CONTENTS 1. ABOUT SA-3000P------------------------------------------------------------------------------------4 VER.3.0. 2. HRV, ITS BACKGROUND INFORMATION 2.1. HRV, ITS DEFINITION----------------------------------------------------------------------------------6 2.2. GENERATION OF HRV--------------------------------------------------------------------------------7 2.3. HISTORY OF HRV---------------------------------------------------------------------------------------9 2.4. ABOUT THE TASK FORCE--------------------------------------------------------------------------10 2.5. STRESS AND AUTOMNOMIC NERVOUS SYSTEM------------------------------------------11 2.6. THE MEANING OF DEPRESSED HRV-----------------------------------------------------------12 3. METHODOLOGY AND TERMINOLOGY OF HRV ANALYSIS 3.1. METHODOGOLY----------------------------------------------------------------------------------------14 3.2. TERMINOLOGY-----------------------------------------------------------------------------------------16 3.2.1. Time Domain parameters---------------------------------------------------------------------------16 3.2.1.1 SDNN 2 3.2.1.2 SDNN Index 3.2.1.3. RMS-SD 3.2.2. Frequency Domain Parameters----------------------------------------------------------------17 3.2.2.1. Total Power (TP) 3.2.2.2. Very Low Frequency (VLF) 3.2.2.3. Low Frequency (LF) 3.2.2.4. High Frequency (HF) 3.2.2.5. LF/HF Ratio 3.2.2.6. Normalized Low Frequency -
Vagal Tone Regulates Cardiac Shunts During Activity and at Low Temperatures in the South American Rattlesnake, Crotalus Durissus
J Comp Physiol B (2016) 186:1059–1066 DOI 10.1007/s00360-016-1008-y ORIGINAL PAPER Vagal tone regulates cardiac shunts during activity and at low temperatures in the South American rattlesnake, Crotalus durissus Renato Filogonio1,2 · Tobias Wang2 · Edwin W. Taylor1,3 · Augusto S. Abe1 · Cléo A. C. Leite4 Received: 2 February 2016 / Revised: 18 May 2016 / Accepted: 3 June 2016 / Published online: 13 June 2016 © Springer-Verlag Berlin Heidelberg 2016 Abstract The undivided ventricle of non-crocodilian rep- pulmonary and systemic blood flow in both groups, but tiles allows for intracardiac admixture of oxygen-poor and net cardiac shunt was reversed in the vagotomized group oxygen-rich blood returning via the atria from the sys- at lower temperatures. We conclude that vagal control of temic circuit and the lungs. The distribution of blood flow pulmonary conductance is an active mechanism regulating between the systemic and pulmonary circuits may vary, cardiac shunts in C. durissus. based on differences between systemic and pulmonary vas- cular conductances. The South American rattlesnake, Cro- Keywords Reptiles · Snakes · Cardiac shunt · Vagus talus durissus, has a single pulmonary artery, innervated nerve · Arterial pressure · Blood flow · Vascular regulation by the left vagus. Activity in this nerve controls pulmonary conductance so that left vagotomy abolishes this control. Experimental left vagotomy to abolish cardiac shunting Introduction had no effect on long-term survival and failed to identify a functional role in determining metabolic rate, growth or The undivided ventricle of the non-crocodilian reptile resistance to food deprivation. Accordingly, the present heart enables variable proportions of cardiac output to investigation sought to evaluate the extent to which car- bypass the systemic or pulmonary circulations, resulting diac shunt patterns are actively controlled during changes in either left-to-right (L–R) or right-to-left (R–L) cardiac in body temperature and activity levels. -
Glossopharyngeal and Vagal Neuralgia
BRITISH 26 August 1967 MEDICAL JOURNAL 529 Br Med J: first published as 10.1136/bmj.3.5564.529 on 26 August 1967. Downloaded from Glossopharyngeal and Vagal Neuralgia JAGDISH C. CHAWLA,* F.R.C.S.; MURRAY A. FALCONERt M.CH. F.R.C.S. Brit. med. J., 1967, 3, 529-531 Tic douloureux involving the glossopharyngeal nerve is rare (1945) did record two cases in which, after intracranial section and when it does occur probably often involves the vagus nerve of the glossopharyngeal nerve alone, pain persisted, but it as well. Many cases are undoubtedly not recognized, and yet disappeared after a second operation in which the upper vagal the condition responds favourably and permanently to intra- rootlets were cut, an experience which Bohm and Strang (1962) cranial section of the glossopharyngeal nerve and upper fila- also shared. Wilson and McAlpine (1946) reported a single ments of the vagus nerve. We therefore propose to review the case in which the glossopharyngeal nerve had been dissected in literature, discuss our own experiences, and try to clarify the its tonsillar bed and avulsed with relief. Our experience, how- clinical syndromes that this condition presents and the surgical ever, suggests that recurrence can arise after this procedure, approach that is required. and has led us to recommend intracranial section of the glosso- pharyngeal nerve plus section of the upper two vagal rootlets. Review of the Literature Present Series The condition of glossopharyngeal neuralgia was first described by Weisenburg (1910), who recognized it in a patient This study is based on a review of 10 patients admitted to with a tumour of the cerebellopontine angle.