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Yin-Chi Cheng, Chin-Chou Huang, Wei-Sheng Chen, De-Feng Huang, Shiow-Ching Shun, Shao-Yu Tsai
BACKGROUND: Sleep disturbances and hypertension are common health issues in patients with systemic lupus erythematosus (SLE). Limited information is available regarding the objective sleep quality and the variation of diurnal blood pressure (BP) in patients with SLE. Moreover, the relationship between sleep patterns and diurnal BP variation in SLE patients is not clear. PURPOSE: To explore the subjective/objective sleep patterns and the diurnal BP variation in women with SLE, to identify the factors associated with diurnal BP variation, and to identify the predictors of this variation...
April 2018: Hu Li za Zhi the Journal of Nursing
Lora J Wu, Philippa H Gander, Margo van den Berg, T Leigh Signal
BACKGROUND: Many civilian aviation regulators favor evidence-based strategies that go beyond hours-of-service approaches for managing fatigue risk. Several countries now allow operations to be flown outside of flight and duty hour limitations, provided airlines demonstrate an alternative method of compliance that yields safety levels "at least equivalent to" the prescriptive regulations. Here we discuss equivalence testing in occupational fatigue risk management. We present suggested ratios/margins of practical equivalence when comparing operations inside and outside of prescriptive regulations for two common aviation safety performance indicators: total in-flight sleep duration and psychomotor vigilance task reaction speed...
April 1, 2018: Aerospace Medicine and Human Performance
A Stefani, A Heidbreder, E Brandauer, M Guaita, L M Neier, T Mitterling, J Santamaria, A Iranzo, A Videnovic, C Trenkwalder, F Sixel-Döring, G K Wenning, A Chade, W Poewe, O S Gershanik, B Högl
Study objective: To evaluate the utility of multimodal low-cost approaches including actigraphy, a wrist-worn device monitoring rest/activity cycles, in identifying patients with idiopathic REM sleep behavior disorder (iRBD). Methods: Seventy patients diagnosed with sleep disorders causing different motor manifestations during sleep (iRBD, sleep apnea, restless legs syndrome) and 20 subjects without any relevant motor manifestation during sleep, underwent video-polysomnography (vPSG) and two-week actigraphy, completed six validated RBD screening questionnaires, and sleep apps use was assessed...
March 15, 2018: Sleep
Dayna A Johnson, Jana A Hirsch, Kari A Moore, Susan Redline, Ana V Diez Roux
Although dense neighborhood built environments support increased physical activity and lower obesity, these features may also disturb sleep. Therefore, we sought to understand the association between the built environment and objectively measured sleep. From 2010 to 2013, we analyzed data from examination 5 of the Multi-Ethnic Study of Atherosclerosis, a diverse population from 6 US cities. We fit multilevel models that assessed the association between the built environment (Street Smart Walk Score, social engagement destinations, street intersections, and population density) and sleep duration or efficiency from 1-week wrist actigraphy in 1,889 individuals...
March 14, 2018: American Journal of Epidemiology
Karin Fisher, Andrea M Laikin, Katianne M Howard Sharp, Catherine A Criddle, Tonya M Palermo, Cynthia W Karlson
Limited research is available on the relationship between objective sleep patterns and pain in children with SCD. Research in other chronic pain populations suggests that the effect of sleep disruption on pain may be stronger than the effect of pain on sleep that night. To examine the bi-directional relationship between objective sleep patterns and daily pain in a pediatric SCD sample. Participants were 30 African American children with SCD 8-18 years (13 ± 2.8 years; 66.7% female) with frequent pain...
March 12, 2018: Journal of Behavioral Medicine
Fern Jaspers-Fayer, Sarah Yao Lin, Laura Belschner, Janet Mah, Elaine Chan, Clare Bleakley, Rhonda Ellwyn, Annie Simpson, Katherine McKenney, S Evelyn Stewart
BACKGROUND: Sleep disturbances, including delayed sleep phase disorder (DSPD) and disorders of sleep initiation and maintenance (DIMS), have repeatedly been identified in adult obsessive-compulsive disorder (OCD). These disturbances have not been well-characterized objectively in pediatric OCD. METHODS: Thirty OCD-affected youth (8-18 yrs, 40% male) and 30 age and gender-matched healthy controls (HCs) completed the Sleep Disturbances Scale for Children (SDSC), and one week of continuous actigraphy with concurrent sleep diary documentation...
February 23, 2018: Journal of Anxiety Disorders
Anne-Katrine F Bundgaard, Jette Asmussen, Nadia S Pedersen, Niels Bilenberg
This study investigated whether early signs of attention deficit hyperactivity disorder (ADHD) in toddlers aged 2-3 years are associated with disturbed sleep and activity levels. Participants were recruited from the Odense Child Cohort, and children scoring above the 93rd percentile on the ADHD scale of the Child Behaviour Checklist 1½-5 were categorised as cases and compared with age- and gender-matched normal-scoring controls. Daytime and nocturnal activity for 24 children with ADHD traits (cases) and 25 healthy controls was assessed through 7 days of actigraphy, and parents completed the Children's Sleep Habits Questionnaire (CSHQ) and the ADHD Rating Scale IV Preschool Version (ADHD-RS)...
March 12, 2018: Journal of Sleep Research
Kazunori Yoh, Hiroki Nishikawa, Hirayuki Enomoto, Noriko Ishii, Yoshinori Iwata, Akio Ishii, Yukihisa Yuri, Yuho Miyamoto, Kunihiro Hasegawa, Chikage Nakano, Ryo Takata, Takashi Nishimura, Nobuhiro Aizawa, Yoshiyuki Sakai, Naoto Ikeda, Tomoyuki Takashima, Hiroko Iijima, Shuhei Nishiguchi
Introduction and purpose: Patients with pancreatic cancer (PC) have long been known to have high rates of depression. Depression in patients with PC can be linked to sleep disturbance. The American College of Sports Medicine notes that physical exercise is safe for most patients with cancer and physical inactivity should be avoided. However, clinical impacts of exercise interventions (EIs) on patients with PC have been poorly investigated. We aim to prospectively examine the effect of EIs on sleep disturbance in patients with PC using actigraphy, which is an objective measurement of motor activity and sleep...
2018: BMJ Open Gastroenterology
Marco Filardi, Fabio Pizza, Elena Antelmi, Raffaele Ferri, Vincenzo Natale, Giuseppe Plazzi
Study Objectives: Sodium oxybate (SXB) is a GABAergic agent widely used as off-label treatment in pediatric type 1 narcolepsy (NT1). Here we aimed at analyzing by wrist actigraphy the sleep/wake profile of NT1 children and adolescents in drug-naïve condition and after 1 year of SXB treatment. As secondary aim, we investigated changes on sleepiness, cataplexy and children's anthropometric profile after 1 year of SXB treatment. Methods: Twenty-four drug-naïve NT1 children underwent seven days of actigraphy during the school week...
March 7, 2018: Sleep
Karoline Krane-Gartiser, Andreas Asheim, Ole Bernt Fasmer, Gunnar Morken, Arne E Vaaler, Jan Scott
BACKGROUND: Actigraphy could be an objective alternative to clinical ratings of motor activity in bipolar disorder (BD), which is of importance now that increased activity and energy are added as cardinal symptoms of (hypo)mania in the DSM-5 and commonly used rating scales give inadequate information about motor symptoms. To date, most actigraphy studies have been conducted in groups and/or used mean activity levels as the variable of interest. The novelty of this case series is therefore to indicate the potential of actigraphy and non-parametric analysis as an objective and personalized marker of intra-individual activity patterns in different phases of BD...
March 7, 2018: International Journal of Bipolar Disorders
Kelly M Tu, Lori Elmore-Staton, Joseph A Buckhalt, Mona El-Sheikh
Utilizing a multi-method design, the present study examined the association between maternal sleep, assessed via actigraphy and self-reports, and permissive parenting (e.g. lax, inconsistent discipline) during adolescence, as well as the extent to which this association differed by mothers' race/ethnicity and socioeconomic status. The sample was comprised of 234 mothers (M age = 41.76 years, SD = 6.25; 67% European-American, 31% African-American, 2% other race/ethnicities) and 237 adolescents (113 boys, 124 girls; M age = 15...
March 5, 2018: Journal of Sleep Research
Bruno Dubois, Stephane Epelbaum, Francis Nyasse, Hovagim Bakardjian, Geoffroy Gagliardi, Olga Uspenskaya, Marion Houot, Simone Lista, Federica Cacciamani, Marie-Claude Potier, Anne Bertrand, Foudil Lamari, Habib Benali, Jean-François Mangin, Olivier Colliot, Remy Genthon, Marie-Odile Habert, Harald Hampel
BACKGROUND: Improved understanding is needed of risk factors and markers of disease progression in preclinical Alzheimer's disease. We assessed associations between brain β-amyloidosis and various cognitive and neuroimaging parameters with progression of cognitive decline in individuals with preclinical Alzheimer's disease. METHODS: The INSIGHT-preAD is an ongoing single-centre observational study at the Salpêtrière Hospital, Paris, France. Eligible participants were age 70-85 years with subjective memory complaints but unimpaired cognition and memory (Mini-Mental State Examination [MMSE] score ≥27, Clinical Dementia Rating score 0, and Free and Cued Selective Reminding Test [FCSRT] total recall score ≥41)...
February 27, 2018: Lancet Neurology
Jeong Yeon Hwang, Min Soo Byun, Young Min Choe, Jun Ho Lee, Dahyun Yi, Jae-Won Choi, Su Hwan Hwang, Yu Jin Lee, Dong Young Lee
OBJECTIVES: To clarify the relationships between sleep-wake cycle and cerebral β-amyloid (Aβ) deposition in cognitively normal (CN) older adults, focusing primarily on the moderating effects of the APOE ε4 allele. METHODS: The present study included 133 CN older adults who participated in the Korean Brain Aging Study for Early Diagnosis & Prediction of Alzheimer's Disease cohort. All participants underwent [11 C] Pittsburgh compound B-PET imaging to quantify Aβ deposition in the brain and blood sampling for APOE genotyping...
February 28, 2018: Neurology
Kjersti M Blytt, Bettina Husebo, Elisabeth Flo, Bjørn Bjorvatn
Objective: Previous research indicates that pain treatment may improve sleep among nursing home patients. We aimed to investigate the long-term effect of pain treatment on 24-h sleep patterns in patients with comorbid depression and dementia. Design: A 13-week, multicenter, parallel-group, double-blind, placebo-controlled randomized clinical trial conducted between August 2014 and September 2016. Setting: Long-term patients from 47 nursing homes in Norway. Participants: We included 106 patients with comorbid dementia and depression according to the Mini Mental Status Examination (MMSE) and the Cornell Scale for Depression in Dementia (CSDD)...
2018: Frontiers in Psychology
Caroline P Hoyniak, John E Bates, Angela D Staples, Kathleen M Rudasill, Dennis L Molfese, Victoria J Molfese
Despite a robust literature examining the association between sleep problems and cognitive abilities in childhood, little is known about this association in toddlerhood, a period of rapid cognitive development. The present study examined the association between various sleep problems, using actigraphy, and performance on a standardized test of cognitive abilities, longitudinally across three ages (30, 36, and 42 months) in a large sample of toddlers (N = 493). Results revealed a between-subject effect in which the children who had more delayed sleep schedules on average also showed poorer cognitive abilities on average but did not support a within-subjects effect...
February 27, 2018: Child Development
Alyssa M Merbler, Breanne J Byiers, John J Garcia, Timothy J Feyma, Frank J Symons
BACKGROUND: Rett syndrome (RTT) is a neurodevelopmental disorder primarily caused by mutations in the MECP2 gene. Sleep problems are reported by the majority of caregivers of individuals with RTT. METHODS: The present study aimed to replicate and extend previous work about the feasibility of measuring sleep with an actigraph device in a sample of girls with clinically diagnosed RTT (N = 13, mean age = 9 years, 5 months). Participants wore an actigraph device day and night for seven consecutive days...
February 27, 2018: Journal of Neurodevelopmental Disorders
Shannon O'Donnell, Steve Bird, Gregory Jacobson, Matthew Driller
Stress hormone and sleep differences in a competition versus training setting are yet to be evaluated in elite female team-sport athletes. The aim of the current study was to evaluate salivary cortisol and perceptual stress markers during competition and training and to determine the subsequent effects on sleep indices in elite female athletes. Ten elite female netball athletes (mean ± SD; age: 23 ± 6 years) had their sleep monitored on three occasions; following one netball competition match (MATCH), one netball match simulation session (TRAIN), and one rest day (CONTROL)...
February 26, 2018: European Journal of Sport Science
Lieneke van den Heuvel, Andrew S Lim, Naomi P Visanji, Jana Huang, Taneera Ghate, Tiago A Mestre, Amaal AlDakheel, Barbara S Connolly, Carmen Gasca-Salas, Drew S Kern, Jennifer Jain, Elizabeth J Slow, Margarita Pondal, Achinoam Faust-Socher, Ekaterina Rogaeva, George Tomlinson, Anthony E Lang, Connie Marras
BACKGROUND: With recent advances in the search for disease-modifying therapies for Parkinson's disease (PD) the importance of identifying prodromal markers becomes greater. Non-manifesting LRRK2 mutation carriers (NMC) are at risk for developing PD, and provide a population in which to identify possible markers. OBJECTIVE: The aim of this study was to test the hypothesis that NMC have differences in daily activity, fragmentation of sleep, arm swing asymmetry, and movement variability during walking, detectable by actigraphy, as compared to matched control subjects...
2018: Journal of Parkinson's Disease
Joshua G Davimes, Abdulaziz N Alagaili, Adhil Bhagwandin, Mads F Bertelsen, Osama B Mohammed, Nigel C Bennett, Paul R Manger, Nadine Gravett
Study objectives: The Arabian oryx lives under hyper-arid conditions in the Arabian Desert and exhibits temporal niche switching of activity patterns at a seasonal level. The objective of the current study was to provide a polysomnographic-based study of sleep in free-roaming Arabian oryx in their natural habitat to determine whether extreme seasonal climate variations resulted in changes in sleep patterns and physiology associated with the seasonal switching of temporal niches. Methods: Electroencephalography, nuchal electromyography, actigraphy and subcutaneous temperature were recorded in free-roaming Arabian oryx in the Mahazat as-Sayd Protected Area, Kingdom of Saudi Arabia during winter and summer...
February 21, 2018: Sleep
Maria Grazia Melegari, Stefania Sette, Elena Vittori, Luca Mallia, Alessandra Devoto, Fabio Lucidi, Raffaele Ferri, Oliviero Bruni
OBJECTIVE: The objective of this study was to assess the links between temperament and sleep in a group of preschoolers with ADHD. METHOD: Twenty-five ADHD ( M = 5.37 years, SD = 1.09) and 22 typically developing (TD; M = 5.10, SD = 1.18) preschoolers participated in the study. Sleep was assessed with the Sleep Disturbance Scale and wrist actigraphy. The Preschool Temperament and Character Inventory (PsTCI) was used to evaluate the child temperament. RESULTS: ADHD children showed a temperamental profile characterized by higher novelty seeking, lower persistence, self-directness, and cooperativeness and marginally lower harm avoidance (HA) compared with controls...
February 1, 2018: Journal of Attention Disorders
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