Results 111 to 120 of about 40,888 (283)

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

Sleep characteristics and self‐reported sleep quality in the oldest‐old: Results from a prospective longitudinal cohort study

Journal of Sleep Research, Volume 34, Issue 2, April 2025.
Summary Little is known about the correlation between subjective perception and objective measures of sleep quality in particular in the oldest‐old. The aim of this study was to perform longitudinal home sleep monitoring in this age group, and to correlate results with self‐reported sleep quality.
Hugo Saner, Kevin Möri, Narayan Schütz, Philipp Buluschek, Tobias Nef   +4 more
wiley   +1 more source

The contribution of sleep to ‘Closing the Gap’ in the health of Indigenous children: a methodological approach [PDF]

, 2015
Examination of the sleep of Australian Indigenous children presents some unique challenges, particularly in terms of community input, study design and in the collection of relevant data.
Danny Camfferman, Sarah Blunden
core   +1 more source

Sleep Evaluation by Actigraphy for Drinkers [PDF]

Alcohol and Alcoholism, 2012
Geoghegan et al . (2012) recently reported the sleep quality of 33 college students, aged 20–25 years, using wrist actigraphy in combination with sleep diary and mood questionnaire to know the effect of alcohol on sleep. As a main result, they observed significant decreases in total sleep time and sleep latency associated with alcohol drinking.
openaire   +2 more sources

Multidimensional frailty and sleep quality in late adulthood: A UK biobank examination

Journal of Sleep Research, Volume 34, Issue 2, April 2025.
Summary Frailty and sleep disturbances are two major concerns in late adulthood, that not only profoundly threaten health and wellbeing at the individual level but place enormous demands on our healthcare systems. Given that both constructs represent dynamic states that are preventable and reversible, understanding the potential pathways to and effects
Sarah P. Coundouris, Julie D. Henry, Lena K. L. Oestreich   +2 more
wiley   +1 more source

Prolonged morning wake transitions associated with amyloid beta burden: A cross-sectional pilot study. [PDF]

Alzheimers Dement
Abstract INTRODUCTION Sleep quality critically influences amyloid beta (Aβ) clearance, yet the specific role of morning wake transition duration remains unexplored. METHODS This hypothesis‐driven secondary analysis examined 97 cognitively unimpaired older adults (mean age ± SD: 74.4 ± 5.8 years) who underwent 14‐day actigraphy and 18F‐florbetapir ...
von Fingerhut G, Makino K, Osuka Y, Ito K, Kato T, Satake S, Shimada H.   +6 more
europepmc   +2 more sources

In the End: Associations Between Sleep Disturbance and Functional Impairment in Fibromyalgia—A Path Analysis Study

Journal of Sleep Research, EarlyView.
ABSTRACT Fibromyalgia is a chronic pain condition characterised by widespread pain, sleep disturbances and mood disorders, often leading to significant functional impairment. Although sleep problems are recognised as important contributors to fibromyalgia symptoms, the mechanisms linking sleep disturbances, psychological factors and functional ...
Kristoffer Bothelius, Eva Kosek, Markus Jansson‐Fröjmark   +2 more
wiley   +1 more source

Detection of pediatric upper extremity motor activity and deficits with accelerometry [PDF]

, 2019
Importance: Affordable, quantitative methods to screen children for developmental delays are needed. Motor milestones can be an indicator of developmental delay and may be used to track developmental progress.
Dosenbach, Nico U.F., Everett, Elyse A, Hoyt, Catherine R, Koller, Jonathan M, Lang, Catherine E, Nguyen, Annie L, Ortega, Mario, Schlaggar, Bradley L, Van, Andrew N   +8 more
core   +1 more source

Sleep Reactivity Amplifies the Impact of Pre‐Sleep Cognitive Arousal on Sleep Disturbances

Journal of Sleep Research, EarlyView.
This study investigates how sleep reactivity moderates the ‘stress‐pre‐sleep arousal‐sleep’ pathway in university students. At the within‐individual level, both high and low sleep‐reactive groups showed increased pre‐sleep cognitive arousal and sleep disruptions in response to elevated daily stress.
Noof Abdullah Saad Shaif, Julian Lim, Anthony N. Reffi, Michael W. L. Chee, Stijn A. A. Massar, Ju Lynn Ong   +5 more
wiley   +1 more source

Adherence to Actigraphic Devices in Elementary School–Aged Children: Systematic Review and Meta-Analysis

Journal of Medical Internet Research
BackgroundConsistent wear is essential for valid and reliable actigraphy data. Adherence to actigraphy may be challenging in primary school children due to developmental and design considerations, yet no quantitative synthesis of adherence in this age ...
Anna C Morris, Asilay Seker, Laurence Telesia, Alice Wickersham, Brian CF Ching, Rahul Roy, Sophie Epstein, Faith Matcham, Edmund Sonuga-Barke, Johnny Downs   +9 more
doaj   +1 more source