keyword
MENU ▼
Read by QxMD icon Read
search

HRV

keyword
https://www.readbyqxmd.com/read/29217881/reduced-baroreflex-sensitivity-decreased-heart-rate-variability-with-increased-arterial-stiffness-in-predialysis
#1
C Lal, M Kaur, A K Jaryal, K K Deepak, D Bhowmik, S K Agarwal
High cardiovascular morbidity and mortality is observed in predialytic chronic kidney disease (CKD) patients. The underlying mechanism of cardiovascular dysfunction often remains unclear. The present study was designed to perform multiparametric assessment of baroreflex sensitivity (BRS), arterial stiffness indices, and cardiovascular variabilities (heart rate variability [HRV] and blood pressure variability [BPV]) together in predialytic CKD patients; compare it with normal healthy controls; and determine their relationships in predialytic nondiabetic CKD patients...
November 2017: Indian Journal of Nephrology
https://www.readbyqxmd.com/read/29215142/cortical-thickness-resting-state-heart-rate-and-heart-rate-variability-in-female-adolescents
#2
Julian Koenig, Peter Parzer, Corinna Reichl, Ayaka Ando, Julian F Thayer, Romuald Brunner, Michael Kaess
Resting state heart rate variability (HRV) is a psychophysiological marker that has gained increasing research interest, in particular in developmental neuroscience. HRV has been shown to be associated with mental and physical health, beyond simple measures of heart rate (HR) and shows inter- and intraindividual variance across aging. Recently, three studies reported on a positive correlation between resting state HRV and cortical thickness in selected regions of interest (ROIs) in adult samples. Structural thickness, HRV, and HR change during the sensitive period of adolescence...
December 7, 2017: Psychophysiology
https://www.readbyqxmd.com/read/29214150/the-physiocam-a-novel-non-contact-sensor-to-measure-heart-rate-variability-in-clinical-and-field-applications
#3
Maria I Davila, Gregory F Lewis, Stephen W Porges
Heart rate variability (HRV) is a reliable indicator of health status and a sensitive index of autonomic stress reactivity. Stress negatively affects physical and psychological wellness by decreasing cardiovascular health and reducing quality of life. Wearable sensors have made it possible to track HRV during daily activity, and recent advances in mobile technology have reduced the cost and difficulty of applying this powerful technique. Although advances have made sensors smaller and lighter, some burden on the subject remains...
2017: Frontiers in Public Health
https://www.readbyqxmd.com/read/29214015/effect-of-spinal-manipulative-treatment-on-cardiovascular-autonomic-control-in-patients-with-acute-low-back-pain
#4
Mohamed Younes, Karine Nowakowski, Benoit Didier-Laurent, Michel Gombert, François Cottin
Background: This study aimed to quantify the effect of spinal manipulative treatment (SMT) from an analysis of baroreflex, systolic blood pressure and heart rate variability (HRV) on patients with acute back pain. It was hypothesized that SMT would increase the parasympathetic cardiovascular autonomic control. Methods: Twenty-two patients with acute back pain were randomly divided into two groups: one receiving sham treatment (Sham) and the other receiving SMT. Recordings were completed during the first day and the seventh day, immediately before and after treatment on both days...
2017: Chiropractic & Manual Therapies
https://www.readbyqxmd.com/read/29211795/increase-in-salivary-oxytocin-and-decrease-in-salivary-cortisol-after-listening-to-relaxing-slow-tempo-and-exciting-fast-tempo-music
#5
Yuuki Ooishi, Hideo Mukai, Ken Watanabe, Suguru Kawato, Makio Kashino
Relaxation and excitation are components of the effects of music listening. The tempo of music is often considered a critical factor when determining these effects: listening to slow-tempo and fast-tempo music elicits relaxation and excitation, respectively. However, the chemical bases that underlie these relaxation and excitation effects remain unclear. Since parasympathetic and sympathetic nerve activities are facilitated by oxytocin and glucocorticoid, respectively, we hypothesized that listening to relaxing slow-tempo and exciting fast-tempo music is accompanied by increases in the oxytocin and cortisol levels, respectively...
2017: PloS One
https://www.readbyqxmd.com/read/29210841/comparison-of-heart-rate-variability-parameters-to-the-autonomic-reflex-screen-in-postural-orthostatic-tachycardia-syndrome-and-neurogenic-orthostatic-hypotension
#6
Jacquie Baker, Juan M Racosta, Kurt Kimpinski
PURPOSE: The clinical significance of heart rate variability (HRV) in the context of autonomic dysfunction continues to be a matter of debate. Therefore, the purpose of the current study was to investigate the clinical relevance of HRV in the context of autonomic dysfunction. METHODS: Heart rate variability data from 225 volunteers consisting of controls (n = 166) and patients with mild (n = 25) and severe (n = 34) autonomic dysfunction were retrospectively analyzed...
November 23, 2017: Journal of Clinical Neurophysiology: Official Publication of the American Electroencephalographic Society
https://www.readbyqxmd.com/read/29207893/a-combination-of-an-iron-chelator-with-an-antioxidant-exerts-greater-efficacy-on-cardioprotection-than-monotherapy-in-iron-overload-thalassemic-mice
#7
Sirinart Kumfu, Juthamas Khamseekaew, Siripong Palee, Somdet Srichairatanakool, Suthat Fucharoen, Siriporn C Chattipakorn, Nipon Chattipakorn
Many recent studies have shown that antioxidant compounds decrease cardiac oxidative stress, decrease cardiac iron deposition and improve cardiac dysfunction in iron-overload induced cardiomyopathy in animal models. Interestingly, a therapy including the combination of the iron chelator deferiprone (DFP) plus the antioxidant N-acetylcysteine (NAC) has been shown to significantly decrease oxidative stress and restore heart and brain function in iron-overloaded rats. However, the cardioprotective effects of this combined DFP and NAC treatment in thalassemic mice has not been investigated...
December 5, 2017: Free Radical Research
https://www.readbyqxmd.com/read/29204786/the-influence-of-comprehensive-cardiac-rehabilitation-on-heart-rate-variability-indices-after-cabg-is-more-effective-than-after-pci
#8
Katarzyna Szmigielska, Anna Szmigielska-Kapłon, Anna Jegier
The aim of this study was to evaluate the influence of cardiac rehabilitation (CR) on heart rate variability (HRV) indices in men with coronary artery disease (CAD) treated with percutaneous coronary intervention (PCI) or coronary artery bypass graft surgery (CABG). The study population consisted of 131 male patients with CAD prospectively and consecutively admitted to CR after PCI n = 72, or CABG n = 59. Participants performed cycle ergometer interval training for 45 min three times a week for 8 weeks...
December 4, 2017: Journal of Cardiovascular Translational Research
https://www.readbyqxmd.com/read/29200073/decreased-parasympathetic-activity-of-heart-rate-variability-during-anticipation-of-night-duty-in-anesthesiology-residents
#9
Man-Ling Wang, Pei-Lin Lin, Chi-Hsiang Huang, Hui-Hsun Huang
BACKGROUND: In residency programs, it is well known that autonomic regulation is influenced by night duty due to workload stress and sleep deprivation. A less investigated question is the impact on the autonomic nervous system of residents before or when anticipating a night duty shift. In this study, heart rate variability (HRV) was evaluated as a measure of autonomic nervous system regulation. METHODS: Eight residents in the Department of Anesthesiology were recruited, and 5 minutes of electrocardiography were recorded under 3 different conditions: (1) the morning of a regular work day (baseline); (2) the morning before a night duty shift (anticipating the night duty); and (3) the morning after a night duty shift...
November 30, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/29198773/sex-and-age-dependent-differences-in-autonomic-nervous-system-functioning-in-adolescents
#10
Massimiliano de Zambotti, Harold Javitz, Peter L Franzen, Ty Brumback, Duncan B Clark, Ian M Colrain, Fiona C Baker
PURPOSE: We assessed sex- and age-dependent differences in a cross-sectional analysis of cardiac autonomic nervous system (ANS) regulation during sleep in adolescents. METHODS: Nocturnal heart rate (HR) and heart rate variability (HRV) metrics, reflecting ANS functioning, were analyzed across the night and within undisturbed rapid eye movement (REM) and non-REM sleep in 149 healthy adolescents (12-22 years; 67 female) from the National Consortium on Alcohol and Neurodevelopment in Adolescence...
December 1, 2017: Journal of Adolescent Health: Official Publication of the Society for Adolescent Medicine
https://www.readbyqxmd.com/read/29195493/adiponectin-biomarkers-of-inflammation-and-changes-in-cardiac-autonomic-function-whitehall-ii-study
#11
Christian Stevns Hansen, Dorte Vistisen, Marit Eika Jørgensen, Daniel R Witte, Eric J Brunner, Adam G Tabák, Mika Kivimäki, Michael Roden, Marek Malik, Christian Herder
BACKGROUND: Biomarkers of inflammation and adiponectin are associated with cardiovascular autonomic neuropathy (CAN) in cross-sectional studies, but prospective data are scarce. This study aimed to assess the associations of biomarkers of subclinical inflammation and adiponectin with subsequent changes in heart rate (HR) and heart rate variability (HRV) in non-diabetic and diabetic individuals. METHODS: Data are based on up to 25,050 person-examinations for 8469 study participants of the Whitehall II cohort study...
December 1, 2017: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/29193026/respiratory-sinus-arrhythmia-modeling-longitudinal-change-from-6-weeks-to-2-years-of-age-among-low-income-mexican-americans
#12
Shannon L Jewell, Hye Won Suk, Linda J Luecken
Parasympathetically-mediated heart rate variability (HRV), commonly indexed via respiratory sinus arrhythmia (RSA), is theorized to support the physiological regulation of emotion; however, little is known about the trajectory of change in resting RSA across early development among high-risk populations for whom emotion regulation is crucial. This study characterized resting RSA change from 6 weeks to 2 years of age among 312 low-income Mexican American infants. RSA was assessed longitudinally at 6, 12, 18, 24, 52, 78, and 104 weeks of age...
November 30, 2017: Developmental Psychobiology
https://www.readbyqxmd.com/read/29192184/affective-emotion-increases-heart-rate-variability-and-activates-left-dorsolateral-prefrontal-cortex-in-post-traumatic-growth
#13
Chuguang Wei, Jin Han, Yuqing Zhang, Walter Hannak, Yanyan Dai, Zhengkui Liu
The present study evaluated the activities of heart rate variability (HRV) and dorsolateral prefrontal cortex (DLPFC) in response to the presentation of affective pictures correlated with posttraumatic growth (PTG) among adults exposed to the Tianjin explosion incident. The participants who were directly involved in the Tianjin explosions were divided into control, post-traumatic stress disorder (PTSD) and PTG group according to the scores of PTSD Checklist-Civilian Version and PTG Inventory survey. All participants received exposure to affective images...
November 30, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29192094/over-production-of-growth-differentiation-factor-15-gdf15-promotes-human-rhinovirus-infection-and-virus-induced-inflammation-in-the-lung
#14
Qun Wu, Di Jiang, Niccolette R Schaefer, Laura Harmacek, Brian P O'Connor, Thomas Eling, Oliver Eickelberg, Hong Wei Chu
Human rhinovirus (HRV) is the most common virus contributing to acute exacerbations of chronic obstructive pulmonary disease (COPD) nearly year-round, but the mechanisms have not been well elucidated. Recent clinical studies suggest that high levels of growth differentiation factor 15 (GDF15) protein in the blood are associated with an increased yearly rate of all-cause COPD exacerbations. Therefore, in the current study, we investigated whether GDF15 promotes HRV infection and virus-induced lung inflammation...
November 30, 2017: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/29190808/the-validity-of-linear-and-non-linear-heart-rate-metrics-as-workload-indicators-of-emergency-physicians
#15
Frederick Schneider, Jan Martin, Alexander Hapfelmeier, Denis Jordan, Gerhard Schneider, Christian M Schulz
BACKGROUND: It has been shown that linear and non-linear heart rate variability (HRV) metrics are suitable to assess workload of anesthetists administering anesthesia. In pre-hospital emergency care, these parameters have not yet been evaluated. We hypothesized that heart rate (HR) and HRV metrics discriminate between differing workload levels of an emergency physician. METHODS: Electrocardiograms were obtained from 13 emergency physicians. Mean HR, ten linear and seven non-linear HRV metrics were analyzed...
2017: PloS One
https://www.readbyqxmd.com/read/29185161/exercise-therapy-and-autonomic-function-in-heart-failure-patients-a-systematic-review-and-meta-analysis
#16
REVIEW
M J Pearson, N A Smart
A large body of evidence exists indicating that autonomic imbalance is characteristic of heart failure, with several parameters of autonomic function associated with adverse clinical outcomes. The aim of this systematic review and meta-analysis was to investigate the effects of exercise training on parameters of autonomic function in patients with heart failure and where possible quantify the size of the effect. We conducted database searches (PubMed, EMBASE and Cochrane Trials Register to 31 March 2017) for exercise-based rehabilitation trials in heart failure; using search terms, exercise training, autonomic function, heart rate recovery, heart rate variability and muscle sympathetic nerve activity...
November 29, 2017: Heart Failure Reviews
https://www.readbyqxmd.com/read/29184345/vagus-nerve-stimulation-modulates-complexity-of-heart-rate-variability-differently-during-sleep-and-wakefulness
#17
Karthi Balasubramanian, K Harikumar, Nithin Nagaraj, Sandipan Pati
Progressive loss of heart rate variability (HRV) and complexity are associated with increased risk of mortality in patients with cardiovascular disease and are a candidate marker for patients at risk of sudden cardiac death. HRV is influenced by the cardiac autonomic nervous system (ANS), although it is unclear which arm of the ANS (sympathetic or parasympathetic) needs to be perturbed to increase the complexity of HRV. In this case-control study, we have analyzed the relation between modulation of vagus nerve stimulation (VNS) and changes in complexity of HRV as a function of states of vigilance...
October 2017: Annals of Indian Academy of Neurology
https://www.readbyqxmd.com/read/29177980/cardiac-autonomic-responses-and-number-of-repetitions-maximum-after-led-irradiation-in-the-ipsilateral-and-contralateral-lower-limb
#18
Adalberto Ferreira Junior, Julio Cezar Schamne, Solange Marta Franzói de Moraes, Nilo Massaru Okuno
The aim of this study was to verify the maximum number of repetitions, fatigue index, blood lactate concentration ([Lac]), and cardiac autonomic responses after LED irradiation (LEDI) in the ipsilateral and contralateral limb. Twelve male subjects (22.0 ± 3.86 years; weight 82.94 ± 12.58 kg; height 1.77 ± 0.05 m), physically active, took part in this study. The subjects underwent a one repetition maximum (1RM) test and performed four randomly experimental sessions in the horizontal leg press exercise, which consisted in four sets of maximum repetitions at 80% of 1RM...
November 24, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/29177943/different-autonomic-responses-to-occupational-and-leisure-time-physical-activities-among-blue-collar-workers
#19
Tatiana O Sato, David M Hallman, Jesper Kristiansen, Jørgen H Skotte, Andreas Holtermann
PURPOSE: The differential effect of occupational and leisure time physical activity on cardiovascular health is termed the physical activity health paradox. Cardiac autonomic modulation could bring insights about the underlying mechanism behind this differential effect. The aim was to compare heart rate variability (HRV) during different activities (sitting, standing and moving) at work and leisure among blue-collar workers. METHODS: One hundred thirty-eight workers from the NOMAD cohort were included...
November 24, 2017: International Archives of Occupational and Environmental Health
https://www.readbyqxmd.com/read/29176684/acupuncture-analgesia-involves-modulation-of-pain-induced-gamma-oscillations-and-cortical-network-connectivity
#20
Michael Hauck, Sven Schröder, Gesa Meyer-Hamme, Jürgen Lorenz, Sunja Friedrichs, Guido Nolte, Christian Gerloff, Andreas K Engel
Recent studies support the view that cortical sensory, limbic and executive networks and the autonomic nervous system might interact in distinct manners under the influence of acupuncture to modulate pain. We performed a double-blind crossover design study to investigate subjective ratings, EEG and ECG following experimental laser pain under the influence of sham and verum acupuncture in 26 healthy volunteers. We analyzed neuronal oscillations and inter-regional coherence in the gamma band of 128-channel-EEG recordings as well as heart rate variability (HRV) on two experimental days...
November 24, 2017: Scientific Reports
keyword
keyword
6941
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"