Results 101 to 110 of about 40,315 (271)

Advances in Clinical Actigraphy [PDF]

Journal of Lung, Pulmonary & Respiratory Research, 2015
Submit Manuscript | http://medcraveonline.com J Lung Pulm Respir Res 2015, 2(4): 00051 meaningful understanding of daily sleep-wake cycles, and so, with this data, the clinician can feel more confident in the diagnosis and management of circadian rhythm disorders, sleep-wake misperception, insomnia, hypersomnia, and sleep disordered breathing [1]. This
openaire   +1 more source

Metrology of two wearable sleep trackers against polysomnography in patients with sleep complaints

Journal of Sleep Research, Volume 34, Issue 2, April 2025.
Summary Sleep trackers are used widely by patients with sleep complaints, however their metrological validation is often poor and relies on healthy subjects. We assessed the metrological validity of two commercially available sleep trackers (Withings Activité/Fitbit Alta HR) through a prospective observational monocentric study, in adult patients ...
Justine Frija, Jimmy Mullaert, Laure Abensur Vuillaume, Mathieu Grajoszex, Ruben Wanono, Hélène Benzaquen, Fedja Kerzabi, Pierre Alexis Geoffroy, Boris Matrot, Théo Trioux, Thomas Penzel, Marie‐Pia d'Ortho   +11 more
wiley   +1 more source

Sleep in Early Psychosis and Bipolar Disorder: Preliminary Results on Actigraphic and Self-Reported Markers of Vulnerability. [PDF]

Early Interv Psychiatry
ABSTRACT Background Sleep disturbances are common in the early stages of psychosis and bipolar disorder and are increasingly regarded as transdiagnostic risk factors for symptom severity and suicidality. However, few studies have simultaneously examined both subjective and objective sleep changes during this early illness phase.
Baldini V, Iannucci F, Venezia N, Pasquino F, Gnazzo M, de Ronchi D, Vandi S, Plazzi G, Pelizza L, Menchetti M.   +9 more
europepmc   +2 more sources

The dynamics of cyclic‐periodic phenomena during non‐rapid and rapid eye movement sleep

Journal of Sleep Research, Volume 34, Issue 2, April 2025.
Summary Sleep is a complex physiological state characterized by distinct stages, each exhibiting unique electroencephalographic patterns and physiological phenomena. Sleep research has unveiled the presence of intricate cyclic‐periodic phenomena during both non‐rapid eye movement and rapid eye movement sleep stages. These phenomena encompass a spectrum
Maria P. Mogavero, Lourdes M. DelRosso, Giuseppe Lanza, Oliviero Bruni, Luigi Ferini Strambi, Raffaele Ferri   +5 more
wiley   +1 more source

Total sleep time obtained from actigraphy versus sleep logs in an academic sleep center and impact on further sleep testing

Nature and Science of Sleep, 2013
R Robert Auger,1,2 Ranji Varghese,1 Michael H Silber,1,3 Nancy L Slocumb1 1Center for Sleep Medicine, 2Department of Psychiatry and Psychology, 3Department of Neurology, Mayo Clinic College of Medicine, Rochester, MN, USA Background: While actigraphy has
Auger RR, Varghese R, Silber MH, Slocumb NL   +3 more
doaj  

Narcolepsy and rapid eye movement sleep

Journal of Sleep Research, Volume 34, Issue 2, April 2025.
Summary Since the first description of narcolepsy at the end of the 19th Century, great progress has been made. The disease is nowadays distinguished as narcolepsy type 1 and type 2. In the 1960s, the discovery of rapid eye movement sleep at sleep onset led to improved understanding of core sleep‐related disease symptoms of the disease (excessive ...
Francesco Biscarini, Lucie Barateau, Fabio Pizza, Giuseppe Plazzi, Yves Dauvilliers   +4 more
wiley   +1 more source

Is sleep affected after microgravity and hypergravity exposure? A pilot study

Journal of Sleep Research, Volume 34, Issue 2, April 2025.
Summary Sleep is known to be affected in space travel and in residents of the international space station. But little is known about the direct effects of gravity changes on sleep, if other factors, such as sleep conditions, are kept constant. Here, as a first exploration, we investigated sleep before and after exposure to short bouts of microgravity ...
Barbara Le Roy, Aurore Jouvencel, Anika Friedl‐Werner, Ludmila Renel, Youcef Cherchali, Raouf Osseiran, Ernesto Sanz‐Arigita, Jean‐René Cazalets, Etienne Guillaud, Ellemarije Altena   +9 more
wiley   +1 more source

Chronotype in relation to shift work: A cohort study among 37,731 female nurses

Journal of Sleep Research, Volume 34, Issue 2, April 2025.
Summary Chronotype may affect tolerance for circadian disruption induced by shift work. This study examines the association between chronotype, self‐reported sleep timing, shift type preference, and sleep problems among nurses, and studies chronotype stability over time.
Linske de Bruijn, Nina E. Berentzen, Roel C. H. Vermeulen, Jelle J. Vlaanderen, Hans Kromhout, Flora E. van Leeuwen, Michael Schaapveld   +6 more
wiley   +1 more source

Nonparametric methods in actigraphy: An update

Sleep Science, 2014
Circadian rhythmicity in humans has been well studied using actigraphy, a method of measuring gross motor movement. As actigraphic technology continues to evolve, it is important for data analysis to keep pace with new variables and features. Our objective is to study the behavior of two variables, interdaily stability and intradaily variability, to ...
Gonçalves, Bruno S.B., Cavalcanti, Paula R.A., Tavares, Gracilene R., Campos, Tania F., Araujo, John F.   +4 more
openaire   +3 more sources

Psychophysical changes after total sleep deprivation and experimental muscle pain

Journal of Sleep Research, Volume 34, Issue 2, April 2025.
Summary Sleep disturbances exacerbate chronic pain, increase psychological load, and increase inflammation. Delayed onset muscle soreness (DOMS) mimics aspects of chronic pain, predominantly affecting peripheral pain mechanisms, while experimental sleep provocations have been shown to impact central pain mechanisms.
Emma Hertel, Elaxmi Sathiyalingam, Linea Pilgaard, Simone Juline Brommann, Rocco Giordano, Kristian Kjær‐Staal Petersen   +5 more
wiley   +1 more source