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Actigraphy

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https://www.readbyqxmd.com/read/28923188/poor-sleep-moderates-the-relationship-between-daytime-napping-and-inflammation-in-black-and-white-men
#1
Karen P Jakubowski, Jennifer M Boylan, Jenny M Cundiff, Karen A Matthews
OBJECTIVES: To test whether napping was associated with 2 inflammatory markers with known relationships to cardiovascular disease: high-sensitivity C-reactive protein (hsCRP) and interleukin-6 (IL-6). Because IL-6 is known to impact central inflammatory processes that relate to sleep regulation, including subjective fatigue, we tested whether this relationship was moderated by sleep duration, sleep efficiency, and self-reported sleep quality. DESIGN: Cross-sectional...
October 2017: Sleep Health
https://www.readbyqxmd.com/read/28923187/gender-and-racial-ethnic-differences-in-sleep-duration-in-the-north-texas-heart-study
#2
Jessica R Dietch, Daniel J Taylor, Joshua M Smyth, Chul Ahn, Timothy W Smith, Bert N Uchino, Matthew Allison, John M Ruiz
OBJECTIVE: Short sleep duration has been linked with a wide array of poor mental and physical health outcomes. Such risks, however, may be moderated by demographic factors such as gender and race/ethnicity. In a diverse community sample, the current study examined the relationship between gender, race/ethnicity and objectively measured sleep duration, controlling for select potential confounds. METHODS: Participants were 300 community adults (50% female), aged 21 to 70 years, and included 60% non-Hispanic Whites, 15% non-Hispanic Blacks, 19% Hispanic/Latino, and 6% other...
October 2017: Sleep Health
https://www.readbyqxmd.com/read/28920706/do-night-and-around-the-clock-firefighters-shift-schedules-induce-deviation-in-tau-from-24-hours-of-systolic-and-diastolic-blood-pressure-circadian-rhythms
#3
Alain E Reinberg, Michael H Smolensky, Marc Riedel, Cedric Riedel, Eric Brousse, Yvan Touitou
Systolic (S) and diastolic (D) blood pressures (BP) [SBP and DBP] are circadian rhythmic with period (τ) in healthy persons assumed to be maintained at 24.0h. We tested this assumption in a sample of 30 healthy career (mean >12 yrs) 30-to-46 yr-old male Caucasian French firefighters (FFs) categorized into three groups according to work schedule and duties: Group A - 12 FFs working 12h day, 12h night, and occasionally 24h shifts and whose primary duties are firefighting plus paramedical and road rescue services; Group B - 9 FFs working mostly 12h day and 12h night shifts and whose duties are answering incoming emergency calls and coordinating service vehicle dispatch from fire stations with Group A personnel; Group C - 9 day shift (09:00-17:00h) FFs charged with administrative tasks...
September 18, 2017: Chronobiology International
https://www.readbyqxmd.com/read/28914959/nocturia-is-associated-with-poor-sleep-quality-among-older-women-in-the-study-of-osteoporotic-fractures
#4
Constance H Fung, Camille P Vaughan, Alayne D Markland, Alison J Huang, Michael N Mitchell, Donald L Bliwise, Sonia Ancoli-Israel, Susan Redline, Cathy A Alessi, Katie Stone
OBJECTIVES: (1) To examine relationships between frequency of nocturia and self-reported sleep quality and objective sleep measures in older women, and (2) to estimate the amount of variation in sleep measures that is specifically attributable to frequency of nocturia. DESIGN AND SETTING: Secondary, cross sectional analysis of the multicenter prospective cohort Study of Osteoporotic Fractures (SOF). PARTICIPANTS: Community-dwelling women aged ≥80 years...
September 15, 2017: Journal of the American Geriatrics Society
https://www.readbyqxmd.com/read/28912971/sleep-parameters-in-short-daily-versus-conventional-dialysis-an-actigraphic-study
#5
Ludimila D'Avila E Silva Allemand, Otávio Toledo Nóbrega, Juliane Pena Lauar, Joel Paulo Russomano Veiga, Einstein Francisco Camargos
Previous studies have observed worse sleep quality in patients undergoing conventional dialysis as compared to daily dialysis. Our aim was to compare the sleep parameters of patients undergoing daily or conventional dialysis using an objective measure (actigraphy). This cross-sectional study was performed in three dialysis centers, including a convenience sample (nonprobability sampling) of 73 patients (36 patients on daily hemodialysis and 37 patients on conventional hemodialysis). The following parameters were evaluated: nocturnal total sleep time (NTST), expressed in minutes; wake time after sleep onset (WASO), expressed in minutes; number of nighttime awakenings; daytime total sleep time (DTST), expressed in minutes; number of daytime naps; and nighttime percentage of sleep (% sleep)...
2017: International Journal of Nephrology
https://www.readbyqxmd.com/read/28912373/the-association-of-sleep-duration-and-quality-with-ckd-progression
#6
Ana C Ricardo, Kristen Knutson, Jinsong Chen, Lawrence J Appel, Lydia Bazzano, Eunice Carmona-Powell, Janet Cohan, Manjula Kurella Tamura, Susan Steigerwalt, John Daryl Thornton, Matthew Weir, Nicolas F Turek, Mahboob Rahman, Eve Van Cauter, James P Lash
Evidence suggests that sleep disorders are common in individuals with CKD, but the influence of sleep duration and quality on CKD progression is unknown. We examined the association of habitual sleep duration and quality with CKD progression in 431 Chronic Renal Insufficiency Cohort (CRIC) Study participants, of whom 48% were women and 50% had diabetes (mean age of 60 years old, mean eGFR =38 ml/min per 1.73 m(2), and median urine protein-to-creatinine ratio [UPCR] =0.20 g/g). We assessed sleep duration and quality by 5-7 days of wrist actigraphy and self-report...
September 14, 2017: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/28910543/intra-individual-variability-in-the-sleep-of-senior-and-junior-rugby-league-athletes-during-the-competitive-season
#7
Johnpaul Caia, Shona L Halson, Tannath J Scott, Vincent G Kelly
This study examined the sleep intra-individual variability (IIV) of rugby league athletes across senior and junior levels during one week of the competitive season. Forty-five rugby league athletes across elite senior, sub-elite senior and elite junior levels each wore actigraphy monitors for seven days during the competitive season, and completed a subjective sleep diary each morning upon waking. Linear mixed models were used to assess differences in sleep measures between playing levels. Intra-individual standard deviations for each sleep measure were calculated for each athlete to determine their respective IIV, allowing differences in IIV between groups to be assessed...
September 14, 2017: Chronobiology International
https://www.readbyqxmd.com/read/28906437/developing-fine-grained-actigraphies-for-rheumatoid-arthritis-patients-from-a-single-accelerometer-using-machine-learning
#8
Javier Andreu-Perez, Luis Garcia-Gancedo, Jonathan McKinnell, Anniek Van der Drift, Adam Powell, Valentin Hamy, Thomas Keller, Guang-Zhong Yang
In addition to routine clinical examination, unobtrusive and physical monitoring of Rheumatoid Arthritis (RA) patients provides an important source of information to enable understanding the impact of the disease on quality of life. Besides an increase in sedentary behaviour, pain in RA can negatively impact simple physical activities such as getting out of bed and standing up from a chair. The objective of this work is to develop a method that can generate fine-grained actigraphies to capture the impact of the disease on the daily activities of patients...
September 14, 2017: Sensors
https://www.readbyqxmd.com/read/28899535/efficacy-and-safety-of-acupuncture-treatment-on-primary-insomnia-a%C3%A2-randomized-controlled-trial
#9
Xuan Yin, Minghui Gou, Jian Xu, Bo Dong, Ping Yin, Fernand Masquelin, Junyi Wu, Lixing Lao, Shifen Xu
OBJECTIVE: The objective of this study was to evaluate the efficacy and safety of acupuncture treatment for primary insomnia. METHODS: We conducted a single-center, single-blinded, and randomized controlled clinical trial. Seventy-two patients with primary insomnia were randomly assigned into two groups - the acupuncture group, who received acupuncture treatment, and the control group, who received sham acupuncture treatment. The treatment was given three times a week for four weeks...
September 2017: Sleep Medicine
https://www.readbyqxmd.com/read/28899534/gene-by-environment-interactions-of-the-clock-pemt-and-ghrelin%C3%A2-loci-with-average-sleep-duration-in-relation-to-obesity-traits%C3%A2-using-a-cohort-of-643-new-zealand-european-children
#10
Mohanraj Krishnan, Andrew N Shelling, Clare R Wall, Edwin A Mitchell, Rinki Murphy, Lesley M E McCowan, John M D Thompson
OBJECTIVES: Modern technology may have desensitised the 'biological clock' to environmental cues, disrupting the appropriate co-ordination of metabolic processes. Susceptibility to misalignment of circadian rhythms may be partly genetically influenced and effects on sleep quality and duration could predispose to poorer health outcomes. Shorter sleep duration is associated with obesity traits, which are brought on by an increased opportunity to eat and/or a shift of hormonal profile promoting hunger...
September 2017: Sleep Medicine
https://www.readbyqxmd.com/read/28899522/actigraphy-scoring-for-sleep-outcome-measures-in-chronic-obstructive-pulmonary-disease
#11
Mary C Kapella, Sachin Vispute, Bingqian Zhu, James J Herdegen
BACKGROUND: Actigraphy is commonly used to measure sleep outcomes so that sleep can be measured conveniently at home over multiple nights. Actigraphy has been validated in people with sleep disturbances; however, the validity of scoring settings in people with chronic medical illnesses such as chronic obstructive pulmonary disease remains unclear. The purpose of this secondary analysis was to compare actigraphy-customized scoring settings with polysomnography (PSG) for the measurement of sleep outcomes in people with chronic obstructive pulmonary disease who have insomnia...
September 2017: Sleep Medicine
https://www.readbyqxmd.com/read/28899014/slow-wave-sleep-disruption-increases-cerebrospinal-fluid-amyloid-%C3%AE-levels
#12
Yo-El S Ju, Sharon J Ooms, Courtney Sutphen, Shannon L Macauley, Margaret A Zangrilli, Gina Jerome, Anne M Fagan, Emmanuel Mignot, John M Zempel, Jurgen A H R Claassen, David M Holtzman
See Mander et al. (doi:10.1093/awx174) for a scientific commentary on this article.Sleep deprivation increases amyloid-β, suggesting that chronically disrupted sleep may promote amyloid plaques and other downstream Alzheimer's disease pathologies including tauopathy or inflammation. To date, studies have not examined which aspect of sleep modulates amyloid-β or other Alzheimer's disease biomarkers. Seventeen healthy adults (age 35-65 years) without sleep disorders underwent 5-14 days of actigraphy, followed by slow wave activity disruption during polysomnogram, and cerebrospinal fluid collection the following morning for measurement of amyloid-β, tau, total protein, YKL-40, and hypocretin...
August 1, 2017: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/28892068/dysregulation-of-objectively-assessed-24-hour-motor-activity-patterns-as-a-potential-marker-for-bipolar-i-disorder-results-of-a-community-based-family-study
#13
H Shou, L Cui, I Hickie, D Lameira, F Lamers, J Zhang, C Crainiceanu, V Zipunnikov, K R Merikangas
There has been a growing number of studies that have employed actigraphy to investigate differences in motor activity in mood disorders. In general, these studies have shown that people with bipolar disorders (BPDs) tend to exhibit greater variability and less daytime motor activity than controls. The goal of this study was to examine whether patterns of motor activity differ in euthymic individuals across the full range of mood disorder subtypes (Bipolar I (BPI), Bipolar II (BPII) and major depression (MDD)) compared with unaffected controls in a community-based family study of mood spectrum disorders...
August 22, 2017: Translational Psychiatry
https://www.readbyqxmd.com/read/28890019/allergic-sensitization-and-objective-measures-of-sleep-in-urban-school-aged-children-with-asthma
#14
Cynthia A Esteban, Robin S Everhart, Sheryl J Kopel, Robert B Klein, Daphne Koinis-Mitchell
BACKGROUND: Allergic sensitization is associated with increased child asthma morbidity and decreased pulmonary function. Nocturnal symptoms and/or awakenings typically are measured by self-report from diary data, whereas objective assessments of sleep in child asthma studies are lacking. OBJECTIVE: To investigate the association between increased allergic sensitization (number of positive allergy test results measured by skin prick test or specific immunoglobulin E) and sleep outcomes (sleep efficiency, sleep duration, and mean number of awakenings measured by actigraphy) in urban schoolchildren with persistent asthma...
September 2017: Annals of Allergy, Asthma & Immunology
https://www.readbyqxmd.com/read/28882740/effect-of-sleep-deprivation-after-a-night-shift-duty-on-simulated-crisis-management-by-residents-in-anaesthesia-a-randomised-crossover-study
#15
Ségolène Arzalier-Daret, Clément Buléon, Marie-Laure Bocca, Pierre Denise, Jean-Louis Gérard, Jean-Luc Hanouz
BACKGROUND: Sleep deprivation has been associated with an increased incidence of medical errors and can jeopardise patients' safety during medical crisis management. The aim of the study was to assess the effect of sleep deprivation on the management of simulated anaesthesia crisis by residents in anaesthesiology. METHODS: A randomised, comparative, monocentric crossover study involving 48 residents in anaesthesia was performed on a high fidelity patient simulator...
September 4, 2017: Anaesthesia, Critical Care & Pain Medicine
https://www.readbyqxmd.com/read/28880353/-sleep-wake-patterns-in-adults-with-autism-spectrum-disorders-in-a-clinical-setting-a-pilot-study
#16
G J Rosbergen, M P Jansen, A R Rosbergen-De Vries, Y Roke, R Otten
The negative consequences of sleep-wake disorders in the general population and in children with an autism spectrum disorder (ASD) are well-established. However, little is known about sleep-wake disorders in adults with ASD.<br/> AIM: To study and measure sleep-wake disorders and sleep-wake patterns in adults in a clinical facility who have been diagnosed primarily as having ASD without any comorbid intellectual disability.<br/> METHOD: We assessed the sleep patterns of 19 patients in a residential facility...
2017: Tijdschrift Voor Psychiatrie
https://www.readbyqxmd.com/read/28870354/the-effect-of-dogs-on-human-sleep-in-the-home-sleep-environment
#17
Salma I Patel, Bernie W Miller, Heidi E Kosiorek, James M Parish, Philip J Lyng, Lois E Krahn
OBJECTIVE: To objectively assess whether a dog in the bedroom or bed disturbs sleep. PARTICIPANTS AND METHODS: From August 1, 2015, through December 31, 2015, we evaluated the sleep of humans and dogs occupying the same bedroom to determine whether this arrangement was conducive to sleep. The study included 40 healthy adults without sleep disorders and their dogs (no dogs <6 months old). Each participant wore an accelerometer and their dog a validated dog accelerometer for 7 nights...
September 2017: Mayo Clinic Proceedings
https://www.readbyqxmd.com/read/28868902/differences-between-sleep-logs-and-actigraphy-combined-with-electroencephalography-in-adults-with-sleep-disturbances
#18
En-Ting Chang, Chiung-Yu Huang, Hui-Ling Lai
BACKGROUND: Actigraphy plus single-channel electroencephalography (EEG) has a high agreement with polysomnography and is considered a simple method for monitoring sleep at home. No studies, however, have evaluated its agreement with sleep logs. PURPOSE: A sleep log was compared to a single-channel EEG in adults with sleep disturbances. The determinants of the agreement between the two recording methods were explored. METHOD: This prospective comparison substudy included 71 participants aged 22-67 years sampled from a previous study of nonpharmacological therapy for sleep disturbances...
January 1, 2017: Biological Research for Nursing
https://www.readbyqxmd.com/read/28860396/early-patient-reported-outcomes-versus-objective-function-after-total-hip-and-knee-arthroplasty-a-prospective-cohort-study
#19
I E Luna, H Kehlet, B Peterson, H R Wede, S J Hoevsgaard, E K Aasvang
AIMS: The purpose of this study was to assess early physical function after total hip or knee arthroplasty (THA/TKA), and the correlation between patient-reported outcome measures, physical performance and actual physical activity (measured by actigraphy). PATIENTS AND METHODS: A total of 80 patients aged 55 to 80 years undergoing THA or TKA for osteoarthritis were included in this prospective cohort study. The main outcome measure was change in patient reported hip or knee injury and osteoarthritis outcome score (HOOS/KOOS) from pre-operatively until post-operative day 13 (THA) or 20 (TKA)...
September 2017: Bone & Joint Journal
https://www.readbyqxmd.com/read/28859716/non-rem-sleep-instability-in-children-with-primary-monosymptomatic-sleep-enuresis
#20
Leticia Azevedo Soster, Rosana Cardoso Alves, Simone Nascimento Fagundes, Adrienne Lebl, Eliana Garzon, Vera H Koch, Raffaele Ferri, Oliviero Bruni
STUDY OBJECTIVES: Sleep enuresis is one of the most common sleep disturbances in childhood. Parental perception of deeper sleep in children with sleep enuresis is not confirmed by objective studies. However, evidence of disturbed sleep has been demonstrated by questionnaire, actigraphy, and polysomnographic studies, but no neurophysiological correlation with low arousability has been found. The goal of this study was to analyze the sleep microstructure of children with sleep enuresis using cyclic alternating pattern (CAP) analysis...
August 29, 2017: Journal of Clinical Sleep Medicine: JCSM: Official Publication of the American Academy of Sleep Medicine
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