Jenny Roe, Andrew Mondschein, Chris Neale, Laura Barnes, Medhi Boukhechba, Stephanie Lopez
The benefits of walking in older age include improved cognitive health (e.g., mental alertness, improved memory functioning) and a reduced risk of stress, depression and dementia. However, research capturing the benefits of walking among older people in real-time as they navigate their world is currently very limited. This study explores cognitive health and well-being outcomes in older people as they walk in their local neighborhood environment. Residents from an independent living facility for older people (mean age 65, n = 11) walked from their home in two dichotomous settings, selected on the basis of significantly different infrastructure, varying levels of noise, traffic and percentage of green space...
2020: Frontiers in Public Health
Marco Chiera, Francesco Cerritelli, Alessandro Casini, Nicola Barsotti, Dario Boschiero, Francesco Cavigioli, Carla G Corti, Andrea Manzotti
Neonatal intensive care units (NICUs) greatly expand the use of technology. There is a need to accurately diagnose discomfort, pain, and complications, such as sepsis, mainly before they occur. While specific treatments are possible, they are often time-consuming, invasive, or painful, with detrimental effects for the development of the infant. In the last 40 years, heart rate variability (HRV) has emerged as a non-invasive measurement to monitor newborns and infants, but it still is underused. Hence, the present paper aims to review the utility of HRV in neonatology and the instruments available to assess it, showing how HRV could be an innovative tool in the years to come...
2020: Frontiers in Neuroscience
André R Medeiros, Anthony S Leicht, Scott Michael, Daniel Boullosa
The root mean square of successive differences (RMSSD) of R-R intervals, the most robust vagal modulation parameter of heart rate variability (HRV), has been proposed as a marker of global health and training adaptations. The weekly averaging of RMSSD and its natural logarithm (LnRMSSD) has been adopted to enhance detection of training-induced adaptations. We assessed measures of aerobic fitness, body composition, objective physical activity (PA), and daily LnRMSSD recordings during different conditions, such as supine rest, seated rest, standing and walking at 5 km/h, over a week in 34 healthy young individuals of both sexes (age: 22±4 yr; body fatness: 20±8%; estimated VO2 max: 40±8 mL·kg-1 ·min-1 )...
October 19, 2020: European Journal of Sport Science
Olga Chelidoni, David Plans, Sonia Ponzo, Davide Morelli, Mark Cropley
BACKGROUND: Recovery from stress is a predictive factor for cardiovascular health, and heart rate variability (HRV) is suggested to be an index of how well people physiologically recover from stress. Biofeedback and mindfulness interventions that include guided breathing have been shown to be effective in increasing HRV and facilitating stress recovery. OBJECTIVE: This study aims to assess the effectiveness of a brief app-based breathing intervention (BioBase) in enhancing physiological recovery among employees who were induced to cognitive and emotional stress...
October 15, 2020: JMIR MHealth and UHealth
Spyridon Fortis, Amy M J O'Shea, Brice F Beck Mae, Rajeshwari Nair, Michihiko Goto, Gregory A Schmidt, Peter J Kaboli, Eli N Perencevich, Heather Schacht Reisinger, Mary Vaughan Sarrazin
PURPOSE: To create a simplified critical illness severity scoring system with high prediction accuracy for 30-day mortality using only commonly available variables. MATERIALS AND METHODS: This is a retrospective cohort study of ICU admissions 2010-2015 in 306 ICUs in 117 Veterans Affairs (VA) hospitals. We randomly divided our cohort into a training dataset (75%) and a validation dataset (25%). We created a critical illness severity scoring system (CISSS) using age, comorbidities, heart rate, mean arterial blood pressure, temperature, respiratory rate, hematocrit, white blood cell count, creatinine, sodium, glucose, albumin, bilirubin, bicarbonate, use of invasive mechanical ventilation, and whether the admission was surgical or not...
September 30, 2020: Journal of Critical Care
Pin-Chun Chen, Negin Sattari, Lauren N Whitehurst, Sara C Mednick
In healthy, young individuals, a reduction in cardiovascular output and a shift from sympathetic to parasympathetic (vagal) dominance is observed from wake into stages of nocturnal and daytime sleep. This cardiac autonomic profile, measured by heart rate variability (HRV), has been associated with significant benefits for cardiovascular health. Aging is associated with decreased nighttime sleep quality and lower parasympathetic activity during both sleep and resting. However, it is not known whether age-related dampening of HRV extends to daytime sleep, diminishing the cardiovascular benefits of naps in the elderly...
October 13, 2020: Psychophysiology
Josefine S Baekgaard, Paer-Selim Abback, Marouane Boubaya, Jean-Denis Moyer, Delphine Garrigue, Mathieu Raux, Benoit Champigneulle, Guillaume Dubreuil, Julien Pottecher, Philippe Laitselart, Fleur Laloum, Coralie Bloch-Queyrat, Frédéric Adnet, Catherine Paugam-Burtz
BACKGROUND: Hyperoxemia has been associated with increased mortality in critically ill patients, but little is known about its effect in trauma patients. The objective of this study was to assess the association between early hyperoxemia and in-hospital mortality after severe trauma. We hypothesized that a PaO2  ≥ 150 mmHg on admission was associated with increased in-hospital mortality. METHODS: Using data issued from a multicenter prospective trauma registry in France, we included trauma patients managed by the emergency medical services between May 2016 and March 2019 and admitted to a level I trauma center...
October 12, 2020: Critical Care: the Official Journal of the Critical Care Forum
Julian Koenig, Birgit Abler, Ingrid Agartz, Torbjörn Åkerstedt, Ole A Andreassen, Mia Anthony, Karl-Jürgen Bär, Katja Bertsch, Rebecca C Brown, Romuald Brunner, Luca Carnevali, Hugo D Critchley, Kathryn R Cullen, Eco J C de Geus, Feliberto de la Cruz, Isabel Dziobek, Marc D Ferger, Håkan Fischer, Herta Flor, Michael Gaebler, Peter J Gianaros, Melita J Giummarra, Steven G Greening, Simon Guendelman, James A J Heathers, Sabine C Herpertz, Mandy X Hu, Sebastian Jentschke, Michael Kaess, Tobias Kaufmann, Bonnie Klimes-Dougan, Stefan Koelsch, Marlene Krauch, Deniz Kumral, Femke Lamers, Tae-Ho Lee, Mats Lekander, Feng Lin, Martin Lotze, Elena Makovac, Matteo Mancini, Falk Mancke, Kristoffer N T Månsson, Stephen B Manuck, Mara Mather, Frances Meeten, Jungwon Min, Bryon Mueller, Vera Muench, Frauke Nees, Lin Nga, Gustav Nilsonne, Daniela Ordonez Acuna, Berge Osnes, Cristina Ottaviani, Brenda W J H Penninx, Allison Ponzio, Govinda R Poudel, Janis Reinelt, Ping Ren, Michiko Sakaki, Andy Schumann, Lin Sørensen, Karsten Specht, Joana Straub, Sandra Tamm, Michelle Thai, Julian F Thayer, Benjamin Ubani, Denise J van der Mee, Laura S van Velzen, Carlos Ventura-Bort, Arno Villringer, David R Watson, Luqing Wei, Julia Wendt, Melinda Westlund Schreiner, Lars T Westlye, Mathias Weymar, Tobias Winkelmann, Guo-Rong Wu, Hyun Joo Yoo, Daniel S Quintana
Understanding the association between autonomic nervous system [ANS] function and brain morphology across the lifespan provides important insights into neurovisceral mechanisms underlying health and disease. Resting-state ANS activity, indexed by measures of heart rate [HR] and its variability [HRV] has been associated with brain morphology, particularly cortical thickness [CT]. While findings have been mixed regarding the anatomical distribution and direction of the associations, these inconsistencies may be due to sex and age differences in HR/HRV and CT...
October 10, 2020: Psychophysiology
Timibloudi Enamamu, Abayomi Otebolaku, Jims Marchang, Joy Dany
The World Health Organization (WHO) in 2016 considered m-health as: "the use of mobile wireless technologies including smart devices such as smartphones and smartwatches for public health". WHO emphasizes the potential of this technology to increase its use in accessing health information and services as well as promoting positive changes in health behaviours and overall management of diseases. In this regard, the capability of smartphones and smartwatches for m-health monitoring through the collection of patient data remotely, has become an important component in m-health system...
October 6, 2020: Sensors
Deokjong Lee, Jinsick Park, Kee Namkoong, Sung Jun Hong, In Young Kim, Young-Chul Jung
OBJECTIVE: Recently, the addiction to online games, classified as Internet gaming disorder (IGD) on DSM-V, has emerged as an important mental health problem. The loss of control over gaming in IGD is associated with diminished cognitive control. This study aimed to link the neurobiological mechanism reflected by brain imaging and the diminished cognitive control reflected by heart rate variability (HRV) measurements during real-time gameplay. METHODS: HRV was assessed in 33 young males with IGD and 29 controls while playing their favorite games...
October 5, 2020: Progress in Neuro-psychopharmacology & Biological Psychiatry
Rongbin Xu, Qi Zhao, Micheline S Z S Coelho, Paulo H N Saldiva, Michael J Abramson, Shanshan Li, Yuming Guo
BACKGROUND: Heat exposure, which will increase with global warming, has been linked to increased risk of a range of types of cause-specific hospitalizations. However, little is known about socioeconomic disparities in vulnerability to heat. We aimed to evaluate whether there were socioeconomic disparities in vulnerability to heat-related all-cause and cause-specific hospitalization among Brazilian cities. METHODS AND FINDINGS: We collected daily hospitalization and weather data in the hot season (city-specific 4 adjacent hottest months each year) during 2000-2015 from 1,814 Brazilian cities covering 78...
October 2020: PLoS Medicine
Rita Biel, Coraline Danieli, Maryam Shekarrizfard, Laura Minet, Michal Abrahamowicz, Jill Baumgartner, Rick Liu, Marianne Hatzopoulou, Scott Weichenthal
Urban populations are often simultaneously exposed to air pollution and environmental noise, which are independently associated with cardiovascular disease. Few studies have examined acute physiologic responses to both air and noise pollution using personal exposure measures. We conducted a repeated measures panel study of air pollution and noise in 46 non-smoking adults in Toronto, Canada. Data were analyzed using linear mixed-effects models and weighted cumulative exposure modeling of recent exposure. We examined acute changes in cardiovascular health effects of personal (ultrafine particles, black carbon) and regional (PM2...
October 7, 2020: Scientific Reports
Tod Brindle
OBJECTIVE: To investigate the incidence and risk factors of pressure injury (PI) development after ventricular assist device (VAD) or total artificial heart (TAH) surgery. METHODS: The investigator reviewed all VAD-TAH surgeries performed between 2010 and 2018 in a large academic health system. The PIs were reported by case incidence, patient incidence, and incidence density for each of the respective 1,000 patient days during the study period. Statistics on four different VAD-TAH devices were assessed; variables significant in bivariate analysis were entered into a stepwise logistic regression model to identify significant predictors of PI...
October 2, 2020: Advances in Skin & Wound Care
Md Juber Rahman, Bashir I Morshed, Brook Harmon
Everyday wearables such as smartwatches or smart bands can play a pivotal role in the field of fitness and wellness and hold the prospect to be used for early disease detection and monitoring towards Smart Health (sHealth). One of the challenges is the extraction of reliable biomarkers from data collected using these devices in the real world (Living Labs). In this yearlong field study, we collected the nocturnal instantaneous heart rate from 9 participants using wrist-worn commercial smart bands and extracted heart rate variability features (HRV)...
July 2020: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
Md Juber Rahman, Ebrahim Nemati, Mahbubur Rahman, Korosh Vatanparvar, Viswam Nathan, Jilong Kuang
Early detection of chronic diseases helps to minimize the disease impact on patient's health and reduce the economic burden. Continuous monitoring of such diseases helps in the evaluation of rehabilitation program effectiveness as well as in the detection of exacerbation. The use of everyday wearables i.e. chest band, smartwatch and smart band equipped with good quality sensor and light weight machine learning algorithm for the early detection of diseases is very promising and holds tremendous potential as they are widely used...
July 2020: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
Reza Sadeghi, Tanvi Banerjee, John Hughes
Sleep quality (SQ) is one of the most well-known factors in daily work performance. Sleep is usually analyzed using polysomnography (PSG) by attaching electrodes to the bodies of participants, which is likely sleep destructive. As a result, investigating SQ using a more easy-to-use and cost-effective methodology is currently a hot topic. To avoid overfitting concerns, one likely methodology for predicting SQ can be achieved by reducing the number of utilized signals. In this paper, we propose three methodologies based on electronic health records and heart rate variability (HRV)...
July 2020: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
Lukasz Tyszczuk Smith, Liat Levita, Francesco Amico, Jennifer Fagan, John H Yek, Justin Brophy, Haihong Zhang, Mahnaz Arvaneh
Depression is the leading cause of disability worldwide, yet rates of missed- and mis-diagnoses are alarmingly high. The introduction of objective biomarkers, to aid diagnosis, informed by depression's physiological pathology may alleviate some of the burden on strained mental health services. Three minutes of eyes-closed resting state heart rate and skin conductance response (SCR) data were acquired from 27 participants (16 healthy controls, 11 with major depressive disorder (MDD)). Various classifiers were trained on state-of-the-art and novel features...
July 2020: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
Yongfeng Huang, Chenxi Sun, Tianchen Jin, Shuchen Yang, Zhiming Zhang
Unobtrusively detecting inter-beat interval (IBI) from ballistocardiogram (BCG) is useful for monitoring cardiac activity at home, especially for calculating heart rate variability (HRV), the critical indicator to evaluate heart health. Compared to single-sensor system in most studies, this research used a bed-embedded 9 by 2 array sensors system to improve measurement coverage and precision of IBI estimation. Based on this system, we proposed a mode-switch based algorithm to solve the problem on array sensor signal selection and multichannel data fusion using linear regression model and Kalman filter...
July 2020: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
David C Sheridan, Ryan Dehart, Amber Lin, Michael Sabbaj, Steven D Baker
OBJECTIVE: Heart rate variability (HRV) evaluates small beat-to-beat time interval (BBI) differences produced by the heart and suggested as a marker of the autonomic nervous system. Artifact produced by movement with wrist worn devices can significantly impact the validity of HRV analysis. The objective of this study was to determine the impact of small errors in BBI selection on HRV analysis and produce a foundation for future research in mental health wearable technology. METHODS: This was a sub-analysis from a prospective observational clinical trial registered with clinicaltrials...
September 2020: Psychiatry Investigation
Eden Asmare Kassahun, Amlaku Mulat Aweke, Almaz Aklilu Getu, Getahun Belay Gela, Simachew Kassa Limenih, Mesafint Ewnetu Mekonnen, Tilksew Ayalew Abtie
Introduction: Nonreassuring fetal heart rate patterns (NRFHRP) suggest fetal conciliation or a deteriorating ability to handle the stress of labor. Nearly half of stillbirths occurring worldwide are due to hypoxia which is primarily manifested by NRFHRP. Hence, this study assessed the proportion and associated factors of NRFHRP in the Finote Selam primary hospital, North West Ethiopia. Methods: An institution-based retrospective cross-sectional study was conducted from March 1 to April 1, 2019, on 364 charts of mothers who gave birth from January 2017 to January 2018 at the Finote Selam primary hospital...
2020: BioMed Research International
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