Results 151 to 160 of about 17,709 (302)

Utility of photoplethysmography for heart rate estimation among inpatients [PDF]

, 2018
Utility of photoplethysmography for heart rate estimation among ...
N Nerlekar (14870548), AW Teh (14545268), J Cooke (7718774), M Zureik (13357155), K Rajakariar (13357152), AN Koshy (14475969), L Roberts (9865163), Maryann Street (13083444), JK Sajeev (14545256), AJ Brown (7710641), MC Wong (14870551)   +10 more
core  

Accuracy and agreement of a wearable device for heart rate and oxygen saturation monitoring in awake dogs

Journal of Small Animal Practice, EarlyView.
Objectives The present study evaluated the accuracy and agreement of heart rate and peripheral oxygen saturation measurements obtained using the Owlet Smart Sock in awake dogs with low activity levels, using a veterinary patient monitor as the reference method.
Ş. Melek, Ö. T. Orhun, M. G. Şenocak, T. Arslan   +3 more
wiley   +1 more source

A perspective on automated rapid eye movement sleep assessment

Journal of Sleep Research, Volume 34, Issue 2, April 2025.
Summary Rapid eye movement sleep is associated with distinct changes in various biomedical signals that can be easily captured during sleep, lending themselves to automated sleep staging using machine learning systems. Here, we provide a perspective on the critical characteristics of biomedical signals associated with rapid eye movement sleep and how ...
Mathias Baumert, Huy Phan
wiley   +1 more source

Sleep and cardiac autonomic modulation in older adults: Insights from an at‐home study with auditory deep sleep stimulation

Journal of Sleep Research, Volume 34, Issue 2, April 2025.
Summary The autonomic nervous system regulates cardiovascular activity during sleep, likely impacting cardiovascular health. Aging, a primary cardiovascular risk factor, is associated with cardiac autonomic disbalance and diminished sleep slow waves. Therefore, slow waves may be linked to aging, autonomic activity and cardiovascular health. However, it
Stephanie Huwiler, M. Laura Ferster, Luzius Brogli, Reto Huber, Walter Karlen, Caroline Lustenberger   +5 more
wiley   +1 more source

Profiling the sleep architecture of ageing adults using a seven‐state continuous‐time Markov model

Journal of Sleep Research, Volume 34, Issue 2, April 2025.
Summary Sleep is a complex biological process regulated by networks of neurons and environmental factors. As one falls asleep, neurotransmitters from sleep–wake regulating neurones work in synergy to control the switching of different sleep states throughout the night. As sleep disorders or underlying neuropathology can manifest as irregular switching,
Jonathon Jacobs, Caitlin E. Martin, Bernard Fuemmeler, Shanshan Chen   +3 more
wiley   +1 more source

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

Journal 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, Jillian J. Haszard, Barbara C. Galland, Shay‐Ruby Wickham, Bradley J. Brosnan, Takiwai Russell‐Camp, Rachael W. Taylor   +6 more
wiley   +1 more source

Peripheral Hemodynamics Estimation Using the Photoplethysmography Method [PDF]

Diabetes is known to reduce blood circulation in capillaries and arterioles; however, no devices can easily measure this on a daily basis. In this study, we developed a tool for measuring finger photoplethysmograms using green light and near-infrared ...
Kazuteru Ryu, Nobuyuki Kanai, Koichi Idei, Toru Shimuta, Kaname Hanada   +4 more
core   +1 more source

Vascular Dynamics During Respiratory Arousal From Sleep Assessed by Oximeter‐Based Vascular Stiffness Measures

Journal of Sleep Research, EarlyView.
ABSTRACT Cortical arousals significantly impact obstructive sleep apnoea (OSA) pathophysiology and cardiovascular consequences, often mediated by sympathetic activation. While pulse oximetry (PPG) provides an accessible reflection of autonomic responses such as changes in pulse rate (PR) and pulse wave amplitude (PWA), the dynamic influence on other ...
Christian Strassberger, Ding Zou, Jan Hedner, Ludger Grote   +3 more
wiley   +1 more source

Sleep Staging Using Photoplethysmography Signal and kNN Nearest Neighbor Algorithm [PDF]

, 2016
Diagnosis of obstructive sleep apnoea disease is carried out through devices that use Polysomnography method. In the polysomnography method, electroencephalography, electrooculography, electromyography, oral-nasal air flow, torako-abdominal movements ...
Bozkurt, Mehmet Recep, Bilgin, Cahit, Serhat Tuna, Uçar, Muhammed Kürşad   +3 more
core  

Psychophysiological indicators of emotional arousal in sexual assault survivors: Evaluating ANS reactivity to therapeutic COPE cards within the SEE FAR CBT framework for PTSD treatment

Psychology and Psychotherapy: Theory, Research and Practice, EarlyView.
Abstract Objective SEE FAR CBT is an integrative treatment protocol for PTSD and anxiety disorders, utilizing imagery‐based (fantastic reality) methods through associative therapeutic COPE cards. Although preliminary evidence suggests potential impacts, further validation is necessary to confirm their efficacy in eliciting specific arousal‐affective ...
Sivan Raz, Noa Burchis, Mooli Lahad
wiley   +1 more source