keyword
MENU ▼
Read by QxMD icon Read
search

Heart rate variability and health

keyword
https://www.readbyqxmd.com/read/29220206/aerobic-training-but-no-resistance-training-increases-sirt3-in-skeletal-muscle-of-sedentary-obese-male-adolescents
#1
Katya Vargas-Ortiz, Victoriano Pérez-Vázquez, Arturo Figueroa, Francisco J Díaz, Paulina G Montaño-Ascencio, Maciste H Macías-Cervantes
In recent years, prevalence of obesity in children and adolescents has increased. A strategy for prevention and management of obesity is aerobic training (AT) due to its effectiveness to decrease fat mass. AT increases the content of SIRT3, a mitochondrial protein that increases the expression of PGC-1α and NFR1, thereby enhances mitochondrial function and metabolic health. Resistance training (RT) provides metabolic benefits but its effect on SIRT3 content is unknown. To compare the effect of AT and RT on SIRT3, PGC-1α and NRF-1 protein levels in skeletal muscle of sedentary obese adolescents...
December 8, 2017: European Journal of Sport Science
https://www.readbyqxmd.com/read/29215144/physiological-coherence-in-healthy-volunteers-during-laboratory-induced-stress-and-controlled-breathing
#2
Elisa Mejía-Mejía, Robinson Torres, Diana Restrepo
Physiological coherence has been related with a general sense of well-being and improvements in health and physical, social, and cognitive performance. The aim of this study was to evaluate the relationship between acute stress, controlled breathing, and physiological coherence, and the degree of body systems synchronization during a coherence-generation exercise. Thirty-four university employees were evaluated during a 20-min test consisting of four stages of 5-min duration each, during which basal measurements were obtained (Stage 1), acute stress was induced using validated mental stressors (Stroop test and mental arithmetic task, during Stage 2 and 3, respectively), and coherence states were generated using a controlled breathing technique (Stage 4)...
December 7, 2017: Psychophysiology
https://www.readbyqxmd.com/read/29215142/cortical-thickness-resting-state-heart-rate-and-heart-rate-variability-in-female-adolescents
#3
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
#4
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/29209423/the-physiological-effects-of-slow-breathing-in-the-healthy-human
#5
Marc A Russo, Danielle M Santarelli, Dean O'Rourke
Slow breathing practices have been adopted in the modern world across the globe due to their claimed health benefits. This has piqued the interest of researchers and clinicians who have initiated investigations into the physiological (and psychological) effects of slow breathing techniques and attempted to uncover the underlying mechanisms. The aim of this article is to provide a comprehensive overview of normal respiratory physiology and the documented physiological effects of slow breathing techniques according to research in healthy humans...
December 2017: Breathe
https://www.readbyqxmd.com/read/29208614/association-between-hospitalisation-for-ambulatory-care-sensitive-conditions-and-primary-health-care-physician-specialisation-a-cross-sectional-ecological-study-in-curitiba-brazil
#6
Marcelo P D Afonso, Helena E Shimizu, Edgar Merchan-Hamann, Walter M Ramalho, Tarcisio Afonso
INTRODUCTION: Hospitalisation for ambulatory care-sensitive conditions (HACSCs) is frequently used as an indicator of the quality and effectiveness of primary healthcare (PHC) services around the world. The aim of the present study was to evaluate whether the PHC model (family health strategy (FHS) x conventional) and the availability of specialised PHC physicians is associated or not with total hospitalisation or HACSCs in the National Health System (SUS) of the municipality of Curitiba, Paraná state (PR), Brazil...
December 4, 2017: BMJ Open
https://www.readbyqxmd.com/read/29205491/prognostic-value-of-cardiac-troponin-i-and-l-lactate-in-blood-of-dairy-cows-affected-by-downer-cow-syndrome
#7
J Labonté, J Dubuc, J-P Roy, S Buczinski
BACKGROUND: The downer cow syndrome (DCS) is a challenging health issue in the dairy industry. No cow-side test is available to provide an accurate prognosis for DCS cases in farm settings. HYPOTHESIS/OBJECTIVES: Local or systemic hypoperfusion and myocardial lesions lead to an increase in blood concentration of biomarkers cardiac troponin I (cTnI) and L-lactate. The objective was to determine the prognostic values of these biomarkers assessed cow-sides in addition to clinical examinations in prognostication of a negative outcome (NO: death or euthanasia within 7 days)...
December 4, 2017: Journal of Veterinary Internal Medicine
https://www.readbyqxmd.com/read/29204074/academic-stress-induced-changes-in-th1-and-th2-cytokine-response
#8
Areej M Assaf, Reem Al-Abbassi, Maysaa Al-Binni
Psychological stress stimulates physiological responses releasing catecholamines and corticoids, which act via corresponding receptors on immune cells, producing a shift in the cytokine balance. These responses are variable depending on the nature of stressors. The effect of the academic stress on the production of the Th1-cytokines (TNF-α, IFN-γ, IL-1β, IL-2, IL-6 and IL-8) and Th2-cytokines (IL-1ra, IL-4, IL-5 and IL-10) on 35 medical/health sciences students after completing their questionnaires was investigated...
December 2017: Saudi Pharmaceutical Journal: SPJ: the Official Publication of the Saudi Pharmaceutical Society
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/29193654/technology-experience-of-solid-organ-transplant-patients-and-their-overall-willingness-to-use-interactive-health-technology
#11
Jasper M M Vanhoof, Bert Vandenberghe, David Geerts, Pieter Philippaerts, Patrick De Mazière, Annette DeVito Dabbs, Sabina De Geest, Fabienne Dobbels
BACKGROUND: The use of interactive health technology (IHT) is a promising pathway to tackle self-management problems experienced by many chronically ill patients, including solid organ transplant (Tx) patients. Yet, to ensure that the IHT is accepted and used, a human-centered design process is needed, actively involving end users in all steps of the development process. A first critical, predevelopment step involves understanding end users' characteristics. This study therefore aims to (a) select an IHT platform to deliver a self-management support intervention most closely related to Tx patients' current use of information and communication technologies (ICTs), (b) understand Tx patients' overall willingness to use IHT for self-management support, and investigate associations with relevant technology acceptance variables, and (c) explore Tx patients' views on potential IHT features...
November 28, 2017: Journal of Nursing Scholarship
https://www.readbyqxmd.com/read/29188886/effects-of-body-mass-index-on-parasympathetic-nervous-system-reactivity-and-recovery-following-orthostatic-stress
#12
D P Williams, N Joseph, E Sones, S Chetluru, T K Hillecke, J F Thayer, J Koenig
Vagally mediated heart rate variability (vmHRV), defined as the beat-to-beat fluctuations in a heart series mediated by the vagus nerve, serves as a non-invasive index of parasympathetic nervous system (PNS) activity. Lower resting state vmHRV is associated with greater body mass index (BMI), providing a psychophysiological pathway linking obesity with health and disease. However little research has been conducted to examine how BMI may influence PNS reactivity to orthostatic stress. The present study sought to explore this in a sample of 59 individuals (44 females, mean age = 24...
2017: Journal of Nutrition, Health & Aging
https://www.readbyqxmd.com/read/29177943/different-autonomic-responses-to-occupational-and-leisure-time-physical-activities-among-blue-collar-workers
#13
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/29176384/the-use-of-mobile-applications-to-collect-data-in-sport-health-and-exercise-science-a-narrative-review
#14
Daniel J Peart, Carlos Balsalobre-Fernández, Matthew P Shaw
Mobile devices are ubiquitous in the population, and most have the capacity to download applications (apps). Some apps have been developed to collect physiological, kinanthropometric and performance data, however the validity and reliability of such data is often unknown. An appraisal of such apps is warranted as mobile apps may offer an alternative method of data collection for practitioners and athletes with money, time and space constraints. This article identifies and critically reviews the commercially available apps that have been tested in the scientific literature, finding evidence to support the measurement of resting heart through photoplethysmograpy, heart rate variability, range of motion, barbell velocity, vertical jump, mechanical variables during running, and distances covered during walking, jogging and running...
November 22, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29163100/resting-heart-rate-variability-facets-of-rumination-and-trait-anxiety-implications-for-the-perseverative-cognition-hypothesis
#15
DeWayne P Williams, Nicole R Feeling, LaBarron K Hill, Derek P Spangler, Julian Koenig, Julian F Thayer
The perseverative cognition hypothesis (PCH) posits that perseveration, defined as the repetitive or sustained activation of cognitive representations of a real or imagined stressor, is a primary mechanism linking psychological (or stress) vulnerability with poor health and disease. Resting vagally mediated heart rate variability (vmHRV) is an important indicator of self-regulatory abilities, stress vulnerability and overall health. Those with lower resting vmHRV are more vulnerable to stress, and thus more likely to engage in perseverative cognition and experience subsequent negative mental health outcomes such as anxiety...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/29160157/social-support-self-rated-health-and-low-mood-in-people-on-sick-leave-due-to-heart-failure-a-cross-sectional-study
#16
Lena Nordgren, Anne Söderlund
AIMS: The aim of this study was to investigate social support in relation to self-rated health and the prevalence of low mood in people on sick leave due to heart failure. METHODS: A cross-sectional design was used, and 590 individuals on sick leave due to heart failure in Sweden responded to the postal questionnaire. The questions therein concerned received and needed functional and structural support from managers, work colleagues, families and friends. Multivariate analyses were conducted...
July 1, 2017: Scandinavian Journal of Public Health
https://www.readbyqxmd.com/read/29157449/paroxysmal-atrial-fibrillation-prediction-based-on-hrv-analysis-and-non-dominated-sorting-genetic-algorithm-iii
#17
K H Boon, M Khalil-Hani, M B Malarvili
This paper presents a method that able to predict the paroxysmal atrial fibrillation (PAF). The method uses shorter heart rate variability (HRV) signals when compared to existing methods, and achieves good prediction accuracy. PAF is a common cardiac arrhythmia that increases the health risk of a patient, and the development of an accurate predictor of the onset of PAF is clinical important because it increases the possibility to electrically stabilize and prevent the onset of atrial arrhythmias with different pacing techniques...
January 2018: Computer Methods and Programs in Biomedicine
https://www.readbyqxmd.com/read/29127509/heart-rate-variability-and-plasma-nephrines-in-the-evaluation-of-heat-acclimatisation-status
#18
Major Michael John Stacey, S K Delves, D R Woods, S E Britland, L Macconnachie, A J Allsopp, S J Brett, J L Fallowfield, C J Boos
PURPOSE: Heat adaptation (HA) is critical to performance and health in a hot environment. Transition from short-term heat acclimatisation (STHA) to long-term heat acclimatisation (LTHA) is characterised by decreased autonomic disturbance and increased protection from thermal injury. A standard heat tolerance test (HTT) is recommended for validating exercise performance status, but any role in distinguishing STHA from LTHA is unreported. The aims of this study were to (1) define performance status by serial HTT during structured natural HA, (2) evaluate surrogate markers of autonomic activation, including heart rate variability (HRV), in relation to HA status...
November 10, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/29125183/ovarian-surgery-for-symptom-relief-in-women-with-polycystic-ovary-syndrome
#19
REVIEW
Sam Lepine, Junyoung Jo, Mostafa Metwally, Ying C Cheong
BACKGROUND: Polycystic ovary syndrome (PCOS) is a common endocrine condition, affecting approximately one in 10 women. PCOS is defined by two of three features: oligo- or anovulation, clinical or biochemical hyperandrogenism or both, or polycystic ovaries.Women with PCOS can have a wide range of health problems, including infrequent and irregular periods, unwanted hair growth and acne, and subnormal fertility. Long-term health concerns include an increased risk of heart disease, diabetes and the development of precancerous disease of the womb...
November 10, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29124524/high-comorbidity-measured-by-the-charlson-comorbidity-index-associates-with-higher-1-year-mortality-risks-in-elderly-patients-experiencing-a-first-acute-heart-failure-hospitalization
#20
Francesc Formiga, Rafael Moreno-Gonzalez, David Chivite, Jonathan Franco, Abelardo Montero, Xavier Corbella
BACKGROUND: Comorbidity is related to poor health results in chronic heart failure (HF). AIMS: The purpose of the study was to assess whether a high Charlson Comorbidity Index score (CCI) relates to 1 year mortality after a first hospitalization for acute HF (AHF). METHODS: We reviewed the medical records of 897 patients > 65 years of age admitted within a two-year period because of a first episode of AHF. We analyzed two groups: low (CCI ≤ 2) and high (CCI > 2) comorbidity...
November 9, 2017: Aging Clinical and Experimental Research
keyword
keyword
95119
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"