Results 131 to 140 of about 111,723 (272)

Screens, Teens, and Sleep: Is the Impact of Nighttime Screen Use on Sleep Driven by Physiological Arousal?

open access: yesJournal of Sleep Research, EarlyView.
ABSTRACT Few studies have objectively measured both screens and sleep in real‐world settings. This study uses repeated measures to assess heart rate during evening screen use, providing new insights into how these behaviours relate to adolescent sleep. Screen use was recorded using wearable cameras over four nights in 70 youth (37% indigenous Māori, 42%
Kim A. Meredith‐Jones   +6 more
wiley   +1 more source

Interpersonal differences between of the entropies of EEG, HRV, immunocytogram and leukocytogram

open access: yesJournal of Education, Health and Sport, 2019
Background. Previously, we have shown that in humans entropy of the normalized parameters of the HRV and SPD of loci of EEG significantly correlate with the entropy of Leukocytogram and Immunocytogram as well as parameters of immunity, which testifies to
O Popadynets’   +3 more
doaj  

Autonomic Profile Changes after Pulsed‐Field versus Thermal Ablation in Patients with Atrial Fibrillation: A Systematic Review and Meta‐Analysis

open access: yesPacing and Clinical Electrophysiology, EarlyView.
ABSTRACT Background Catheter ablation is an established therapy for atrial fibrillation (AF), with thermal ablation as a standard modality. Pulsed‐field ablation (PFA) is a nonthermal alternative that selectively ablates myocardium while sparing collateral tissue. Its comparative autonomic impact relative to thermal ablation remains unclear.
Ibrahim Antoun   +8 more
wiley   +1 more source

Spaceflight and sport science: Physiological monitoring and countermeasures for the astronaut–athlete on Mars exploration missions

open access: yesExperimental Physiology, EarlyView.
Abstract Long‐duration spaceflight impacts essentially every system in the human body, resulting in multisystem deconditioning that might impair the health and performance of crewmembers, particularly on long‐duration exploration missions to Mars. In this review, we apply the sport science model of athlete monitoring, testing and training to astronauts;
Luke DeVirgiliis   +8 more
wiley   +1 more source

Interpreting peripheral oxygen saturation variability in critical illness: A directional framework adjusted for hypoxia severity

open access: yesExperimental Physiology, EarlyView.
Abstract Peripheral oxygen saturation (SpO2${S_{{\mathrm{p}}{{\mathrm{O}}_2}}}$) exhibits a complex pattern of fluctuations during hypoxia, which can be quantified using entropy measures. SpO2${S_{{\mathrm{p}}{{\mathrm{O}}_2}}}$ entropy analysis provides insights into dynamic physiological regulation by non‐invasively reflecting the body's capacity to ...
Shuyang Iris Feng   +7 more
wiley   +1 more source

Cardiac‐specific Kv1.1 deficiency alters cardiomyocyte electrophysiology without modifying overall cardiac function or arrhythmia susceptibility

open access: yesExperimental Physiology, EarlyView.
Abstract The leading cause of epilepsy‐related mortality is sudden unexpected death in epilepsy (SUDEP), resulting from seizure‐induced cardiorespiratory arrest by mechanisms that remain unresolved. Mutations in ion channel genes expressed in both brain and heart represent SUDEP risk factors because they can disrupt neural and cardiac rhythms ...
Kelsey Halvorson   +11 more
wiley   +1 more source

The Relationship between Heart Rate Variability and Global Longitudinal Strain in Type 2 Diabetes Mellitus Patients at Puskesmas Jakarta

open access: yesJurnal Penyakit Dalam Indonesia
Introduction. Diabetes mellitus (DM) remains a major global health issue due to its direct consequences and complications, particularly cardiovascular complications.
Dwi Rendra Hadi   +3 more
doaj   +1 more source

Glial cells in the heart: Implications for their roles in health and disease

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Schematic representation of cardiac autonomic ganglia within epicardial fat pads (posterior heart surface shown), containing vagal postganglionic neuron cell bodies, associated fibres, and glia. These ganglia receive cholinergic input from vagal preganglionic neurons and adrenergic input from sympathetic postganglionic neurons ...
Svetlana Mastitskaya   +2 more
wiley   +1 more source

Heart Rate Variability in an Elite Female Alpine Skier: a Case Study

open access: yesAnnals of Applied Sport Science, 2017
Objectives. The purpose of this study was to assess the heart rate variability (HRV) during off-snow and on-snow training in an elite female alpine ski racer. Methods. Using a case study design, a single elite female alpine ski racer (25 years old; 175.6
Sean Wallace   +3 more
doaj  

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