BACKGROUND The contribution of human rhinovirus (HRV) to severe acute respiratory illness (ARI) is unclear. OBJECTIVE To assess the association between HRV species detection and ARI hospitalizations. METHODS Children <5 years old hospitalized for ARI were prospectively enrolled between December 2003 and April 2005 in 3 US counties. Asymptomatic controls were enrolled between December 2003 a...

Peripheral artery disease (PAD) and low heart rate variability (HRV) are highly prevalent in hemodialysis patients, and both are associated with increased cardiovascular morbidity and mortality. This study aims to examine the suggested relationship between PAD and HRV, and the relationship of parameters before and after hemodialysis. This study enrolled 161 maintenance hemodialysis patients. PA...

Heart rate variability (HRV), the quantification of beat-to-beat variability, has been studied as a potential prognostic marker in inflammatory diseases such as sepsis. HRV normally reflects significant levels of variability in homeostasis, which can be lost under stress. Much effort has been placed in interpreting HRV from the perspective of quantitatively understanding how stressors alter HRV...

Human rhinoviruses (HRVs) are important contributors to respiratory disease, but their healthcare burden remains unclear, primarily because of the lack of sensitive, accurate, and convenient means of determining their causal role. To address this, we developed and clinically validated the sensitivity and specificity of a real-time reverse transcription-PCR (RT-PCR) assay targeting the viral 5' ...

BACKGROUND High-frequency heart rate variability (HF-HRV) is a measure of parasympathetic nervous system (PNS) output that has been associated with enhanced self-regulation. Low resting levels of HF-HRV are associated with nicotine dependence and blunted stress-related changes in HF-HRV are associated with decreased ability to resist smoking. Meditation has been shown to increase HF-HRV. Howeve...

non-diabetic officers from the Buffalo Cardio-Metabolic Occupational Police Stress study, following a 12-hour fast. HRV was performed according to methods published by the Task Force of the European Society of Cardiology and the North American Society of Pacing Electrophysiology for measurement and analysis of HRV. Mean values of high (HF) and low frequency (LF) HRV were compared across tertile...

BACKGROUND Heart rate variability (HRV) is known to be reduced in depression; however, is unclear whether this is a consequence of the disorder or due to antidepressant medication. METHODS We analysed data on 4750 participants from the first wave of The Irish Longitudinal Study on Ageing (TILDA). Time [standard deviation of normal to normal intervals (SDNN ms2)] and frequency domain [low freq...

Heart rate variability biofeedback (HRV-BF) is frequently used for stress management. Recently, virtual reality technology has gained attention delivery, promising higher immersion, motivation, and than classical screens. However, the effects of different technologies breathing techniques are not yet understood. In this study, 107 healthy participants completed a session in one four conditions:...