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heart rate variability and sleep

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https://www.readbyqxmd.com/read/28065687/restless-legs-syndrome-and-cardiovascular-disease-a-research-roadmap
#1
REVIEW
Daniel J Gottlieb, Virend K Somers, Naresh M Punjabi, John W Winkelman
In this paper, we first critically appraise the epidemiologic literature examining the association of restless legs syndrome (RLS) with cardiovascular disease (CVD) and then consider whether lessons learned from the study of cardiovascular consequences of other sleep disorders might inform a research agenda to examine the potential mechanisms of cardiovascular morbidity of RLS. Cross-sectional and longitudinal studies are both mixed as to whether there is a meaningful association of RLS and CVD. On the other hand, numerous cross-sectional and longitudinal observational studies have shown a strong association of obstructive sleep apnea (OSA) with CVD risk...
October 27, 2016: Sleep Medicine
https://www.readbyqxmd.com/read/28005700/morning-pressor-surge-blood-pressure-variability-and-arterial-stiffness-in-essential-hypertension
#2
Giacomo Pucci, Francesca Battista, Fabio Anastasio, Giuseppe Schillaci
OBJECTIVE: An excess morning blood pressure surge (MBPS) may portend an increased cardiovascular risk, but the mechanisms thereof have been little investigated. The link between MBPS, short-term blood pressure (BP) variability, and arterial stiffness has not been entirely defined. METHODS: In 602 consecutive untreated hypertensive patients (48 ± 12 years, 61% men, office BP 149/93 ± 17/10 mmHg), we measured carotid-femoral pulse wave velocity (cf-PWV, SphygmoCor) and 24-h ambulatory BP...
February 2017: Journal of Hypertension
https://www.readbyqxmd.com/read/27999786/sleep-disordered-breathing-and-autonomic-function-in-overweight-and-obese-children-and-adolescents
#3
Annelies Van Eyck, Kim Van Hoorenbeeck, Benedicte Y De Winter, Luc Van Gaal, Wilfried De Backer, Stijn L Verhulst
Obstructive sleep apnoea (OSA), common in children with obesity, is associated with cardiovascular morbidity. Autonomic dysfunction has been suggested to be a key player in the development of these complications. We investigated the relationship between obesity, OSA and sympathetic activity in children. 191 children with obesity were included and distributed into two groups: 131 controls and 60 with OSA. Beat-to-beat RR interval data were extracted from polysomnography for heart rate variability analysis. Urinary free cortisol levels were determined...
October 2016: ERJ Open Research
https://www.readbyqxmd.com/read/27993527/use-of-electric-field-sensors-for-recording-respiration-heart-rate-and-stereotyped-motor-behaviors-in-the-rodent-home-cage
#4
Donald J Noble, Camden J MacDowell, Michael L McKinnon, Tamra I Neblett, William N Goolsby, Shawn Hochman
BACKGROUND: Numerous environmental and genetic factors can contribute significantly to behavioral and cardiorespiratory variability observed experimentally. Affordable technologies that allow for noninvasive home cage capture of physio-behavioral variables should enhance understanding of inter-animal variability including after experimental interventions. NEW METHOD: We assessed whether EPIC electric field sensors (Plessey Semiconductors) embedded within or attached externally to a rodent's home cage could accurately record respiration, heart rate, and motor behaviors...
December 16, 2016: Journal of Neuroscience Methods
https://www.readbyqxmd.com/read/27991465/specific-and-combined-subjective-responses-to-noise-and-their-association-with-cardiovascular-diseases
#5
Zdenka Vandasova, Ondřej Vencálek, Vladimíra Puklová
INTRODUCTION: Noise is one of the most extensive environmental factors affecting the general population. The present study is focused on the association between discomfort caused by noise and the incidence of certain diseases (ischaemic heart disease, stroke and hypertension). MATERIALS AND METHODS: This cross-sectional questionnaire study, conducted in 10 cities in the Czech Republic, comprises two stages with 3592 obtained questionnaires in the first phase and 762 in the second phase...
November 2016: Noise & Health
https://www.readbyqxmd.com/read/27960229/automated-telephone-communication-systems-for-preventive-healthcare-and-management-of-long-term-conditions
#6
REVIEW
Pawel Posadzki, Nikolaos Mastellos, Rebecca Ryan, Laura H Gunn, Lambert M Felix, Yannis Pappas, Marie-Pierre Gagnon, Steven A Julious, Liming Xiang, Brian Oldenburg, Josip Car
BACKGROUND: Automated telephone communication systems (ATCS) can deliver voice messages and collect health-related information from patients using either their telephone's touch-tone keypad or voice recognition software. ATCS can supplement or replace telephone contact between health professionals and patients. There are four different types of ATCS: unidirectional (one-way, non-interactive voice communication), interactive voice response (IVR) systems, ATCS with additional functions such as access to an expert to request advice (ATCS Plus) and multimodal ATCS, where the calls are delivered as part of a multicomponent intervention...
14, 2016: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/27941578/trauma-and-autonomic-dysregulation-episodic-versus-systemic-negative-affect-underlying-cardiovascular-risk-in-posttraumatic-stress-disorder
#7
Paul A Dennis, Nathan A Kimbrel, Andrew Sherwood, Patrick S Calhoun, Lana L Watkins, Michelle F Dennis, Jean C Beckham
OBJECTIVE: Posttraumatic stress disorder (PTSD) has been linked to elevated heart rate (HR) and reduced heart-rate variability (HRV) in cross-sectional research. Recent evidence suggests that this link may be driven by individual differences in autonomic arousal associated with momentary negative affect (NA). Using ecological momentary assessment (EMA) of NA and minute-to-minute HR/HRV monitoring, we examined whether NA-related HR/HRV mediated the association of PTSD symptom severity with 24-hour HRV and endothelial functioning...
December 9, 2016: Psychosomatic Medicine
https://www.readbyqxmd.com/read/27933574/-long-term-hrv-analysis-shows-stress-reduction-by-magnesium-intake
#8
Elmar Wienecke, Claudia Nolden
BACKGROUND: Mental pressure and stress represent an ever-increasing socio-political challenge. The heart rate variability (HRV) measurement, which has its origin in the cardiac function diagnosis, gives information on the neurovegetative activity. A low HRV shows an imbalance of the sympathetic and parasympathetic efferents and thus is an indicator of stress. METHOD: A randomized, controlled, two-armed parallel study with 100 participants and a period of 90 days was performed...
December 2016: MMW Fortschritte der Medizin
https://www.readbyqxmd.com/read/27928212/relationship-between-autonomic-markers-of-heart-rate-and-subjective-indicators-of-recovery-status-in-male-elite-badminton-players
#9
Christo A Bisschoff, Ben Coetzee, Michael R Esco
The primary aim of the study was to determine if heart rate variability (HRV), and heart rate recovery (HRR) are related to several subjective indicators of recovery status (muscle soreness, hydration status, sleep quality and quantity as well as pre-competition mood states) for different match periods in male, elite, African, singles badminton players. HRV and HRR were measured in twenty-two badminton players before (pre-match), during (in-match), after (post-match) and during rest periods (in-match rest) of 46 national and international matches...
December 2016: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/27920726/hrvanalysis-a-free-software-for-analyzing-cardiac-autonomic-activity
#10
Vincent Pichot, Frédéric Roche, Sébastien Celle, Jean-Claude Barthélémy, Florian Chouchou
Since the pioneering studies of the 1960s, heart rate variability (HRV) has become an increasingly used non-invasive tool for examining cardiac autonomic functions and dysfunctions in various populations and conditions. Many calculation methods have been developed to address these issues, each with their strengths and weaknesses. Although, its interpretation may remain difficult, this technique provides, from a non-invasive approach, reliable physiological information that was previously inaccessible, in many fields including death and health prediction, training and overtraining, cardiac and respiratory rehabilitation, sleep-disordered breathing, large cohort follow-ups, children's autonomic status, anesthesia, or neurophysiological studies...
2016: Frontiers in Physiology
https://www.readbyqxmd.com/read/27918668/the-influence-of-changes-in-acute-training-load-on-daily-sensitivity-of-morning-measured-fatigue-variables-in-elite-soccer-players
#11
Robin T Thorpe, Anthony J Strudwick, Martin Buchheit, Greg Atkinson, Barry Drust, Warren Gregson
PURPOSE: To determine the sensitivity of a range of potential fatigue measures to daily training load accumulated over the previous two, three and four days during a short in-season competitive period in elite senior soccer players (n=10). METHODS: Total high-speed running distance, perceived ratings of wellness (fatigue, muscle soreness, sleep quality), counter-movement jump height (CMJ), submaximal heart rate (HRex), post-exercise heart rate recovery (HRR) and heart rate variability (HRV: Ln rMSSD) were analysed during an in-season competitive period (17 days)...
December 5, 2016: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/27911348/comparison-between-heart-rate-variability-and-pulse-rate-variability-during-different-sleep-stages-for-sleep-apnea-patients
#12
Shuangyan Liu, Jing Teng, Xianghua Qi, Shoushui Wei, Chengyu Liu
BACKGROUND: The usefulness of heart rate variability (HRV) in the clinical research has been verified in numerous studies. However, it is controversy that using pulse rate variability (PRV) as a surrogate of HRV in different clinical applications. OBJECTIVE: We aimed to investigate whether PRV extracted from finger pulse photoplethysmography (Pleth) signal could substitute HRV from ECG signal during different sleep stages by analyzing the common time-domain, frequency-domain and non-linear indices...
November 25, 2016: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/27889332/effect-of-an-aerobic-exercise-intervention-on-cardiac-autonomic-regulation-a-worksite-rct-among-cleaners
#13
David M Hallman, Andreas Holtermann, Karen Søgaard, Peter Krustrup, Jesper Kristiansen, Mette Korshøj
OBJECTIVE: The aim of this randomized controlled trial (RCT) was to determine whether aerobic exercise during work hours affects cardiac autonomic regulation in cleaners characterized by high levels of occupational physical activity and poor cardiorespiratory fitness. METHOD: Eligible cleaners (n=116) were randomized to an aerobic exercise group (n=59) or a reference group (n=57) with lectures. The intervention group received two 30-min sessions per week of supervised aerobic exercise over 4months...
February 1, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/27874154/characterizing-sleeping-habits-and-disturbances-among-saudi-adults
#14
Mohamad Al-Tannir, Samer Y Kobrosly, Ahmad H Al-Badr, Nourhan A Salloum, Youssef M Altannir
To characterize sleeping habits, assess sleep disturbance prevalence, and identify associated factors among Saudi adults.  Methods: A total of 1720 adults were approached for this observational cross-sectional study between October 2014 and March 2015. The study took place in Riyadh, the capital of Saudi Arabia. We used a questionnaire to describe sleeping characteristics in relation to existing chronic diseases, smoking status, obesity, daily performance and sociodemographic variables. Results: The response rate was 79...
December 2016: Saudi Medical Journal
https://www.readbyqxmd.com/read/27871127/effect-of-maternal-position-on-fetal-behavioural-state-and-heart-rate-variability-in-healthy-late-gestation-pregnancy
#15
Peter R Stone, Wendy Burgess, Jordan P R McIntyre, Alistair J Gunn, Christopher A Lear, Laura Bennet, Edwin A Mitchell, John M D Thompson
KEY POINTS: Fetal behavioural state in healthy late gestation pregnancy is affected by maternal position. Fetal state 1F is more likely to occur in maternal supine or right lateral positions. Fetal state 4F is less likely to occur when the woman lies supine or semi-recumbent. Fetal state change is more likely when the woman is supine or semi-recumbent. Fetal heart rate variability is affected by maternal position with variability reduced in supine and semi-recumbent positions. ABSTRACT: Fetal behavioural states (FBS) are measures of fetal wellbeing...
November 21, 2016: Journal of Physiology
https://www.readbyqxmd.com/read/27849189/sleep-related-bradyarrhythmic-events-and-heart-rate-variability-in-apparently-healthy-individuals
#16
Tolga Çimen, Hamza Sunman, Mehmet Erat, Tolga Han Efe, Ahmet Akyel, Murat Bilgin, Sadık Açıkel, Mehmet Doğan, Ekrem Yeter
OBJECTIVE: It is thought that abnormal cardiac impulses of the autonomic nervous system during sleep are responsible for sleep-related bradyarrhythmias. Despite a proposed common etiopathogenesis and having common name of "sleep-related bradyarrhythmias," precise importance of sinoatrial or atrioventricular (AV) node involvement remains elusive. This study aimed to determine whether there is a difference in sleeprelated bradyarrhythmias from the point of view of heart rate variability (HRV)...
November 10, 2016: Anatolian Journal of Cardiology
https://www.readbyqxmd.com/read/27849113/late-night-exercise-affects-the-autonomic-nervous-system-activity-but-not-the-hypothalamo-pituitary-adrenal-axis-in-the-next-morning
#17
Cihat Ucar, Tuba Özgöçer, Sedat Yildiz
BACKGROUND: Exercise activates hypothalamic-pituitary-adrenal axis (HPA) and autonomic nervous system (ANS) and generally causes beneficial changes in homeostatic balance. However, the health benefits of late-night exercise programs on the activity of HPA and ANS is not known. The aim of this study was to assess effects of late-night exercise on sleep quality and on the activities of the HPA axis (as cortisol awakening response, CAR) and the ANS (as heart rate variability, HRV) measurements in the following morning...
November 16, 2016: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/27837003/medulla-oblongata-damage-and-cardiac-autonomic-dysfunction-in-parkinson-disease
#18
Nadya Pyatigorskaya, Marie Mongin, Romain Valabregue, Lydia Yahia-Cherif, Claire Ewenczyk, Cyril Poupon, Eden Debellemaniere, Marie Vidailhet, Isabelle Arnulf, Stephane Lehéricy
OBJECTIVE: To characterize medulla oblongata damage using diffusion tensor imaging (DTI) in Parkinson disease (PD) and correlate it with dysfunction of the cardiac sympathetic/vagal balance. METHODS: Fifty-two patients with PD and 24 healthy controls were included in the study. All participants underwent clinical examination and 3T MRI using 3D T1-weighted imaging and DTI. DTI metrics were calculated within manually drawn regions of interest. Heart rate variability was evaluated using spectral analysis of the R-R cardiac interval during REM and slow-wave sleep based on continuous overnight electrocardiographic monitoring...
December 13, 2016: Neurology
https://www.readbyqxmd.com/read/27826247/modulations-of-heart-rate-ecg-and-cardio-respiratory-coupling-observed-in-polysomnography
#19
REVIEW
Thomas Penzel, Jan W Kantelhardt, Ronny P Bartsch, Maik Riedl, Jan F Kraemer, Niels Wessel, Carmen Garcia, Martin Glos, Ingo Fietze, Christoph Schöbel
The cardiac component of cardio-respiratory polysomnography is covered by ECG and heart rate recordings. However, their evaluation is often underrepresented in summarizing reports. As complements to EEG, EOG, and EMG, these signals provide diagnostic information for autonomic nervous activity during sleep. This review presents major methodological developments in sleep research regarding heart rate, ECG, and cardio-respiratory couplings in a chronological (historical) sequence. It presents physiological and pathophysiological insights related to sleep medicine obtained by new technical developments...
2016: Frontiers in Physiology
https://www.readbyqxmd.com/read/27810179/diurnal-and-nocturnal-cardiovascular-variability-and-heart-rate-arousal-response-in-idiopathic-hypersomnia
#20
Emilia Sforza, Frédéric Roche, Jean Claude Barthélémy, Vincent Pichot
OBJECTIVES: Autonomic nervous system dysfunction has been described in narcolepsy with cataplexy affecting sympathetic functions. In this study we analyzed whether altered diurnal and nocturnal cardiovascular control is present in idiopathic hypersomnia (IH). METHODS: Fourteen drug-free patients aged 26.2 ± 7 years and 14 age-matched controls were examined. Clinical data, 24-h polysomnography, heart rate (HR) variability, and the HR response to spontaneous arousal were available...
August 2016: Sleep Medicine
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