How well does a commercially available wearable device measure sleep in young athletes?

abstract：:Multiple components of the circadian central clock are phosphoproteins, and it has become increasingly clear that posttranslational modification is an important regulator of circadian rhythm in diverse organisms, from dinoflagellates to humans. Genetic studies in Drosophila have identified double-time (dbt), a serine/...

journal_title：Chronobiology international

authors： Eide EJ,Virshup DM

更新日期：2001-05-01 00:00:00

abstract：:The prevalence of delayed sleep phase syndrome (DSPS) has been estimated to be quite low. Although no genetic inheritance pattern has been described, it has been reported that close to 50% of DSPS patients have biological relatives with similar symptoms. A pedigree of one extended family with symptoms suggestive of DS...

journal_title：Chronobiology international

authors： Ancoli-Israel S,Schnierow B,Kelsoe J,Fink R

更新日期：2001-09-01 00:00:00

abstract：:The electronic health record (EHR) contains rich histories of clinical care, but has not traditionally been mined for information related to sleep habits. Here, we performed a retrospective EHR study based on a cohort of 3,652 individuals with self-reported sleep behaviors documented from visits to the sleep clinic. T...

journal_title：Chronobiology international

authors： Rhoades SD,Bastarache L,Denny JC,Hughey JJ

更新日期：2018-11-01 00:00:00

abstract：:Shift workers are known to have an increased risk of developing cardiovascular disease (CVD) compared with day workers. An important factor contributing to this increased risk could be the increased incidence of postprandial metabolic risk factors for CVD among shift workers, as a consequence of the maladaptation of e...

journal_title：Chronobiology international

authors： Al-Naimi S,Hampton SM,Richard P,Tzung C,Morgan LM

更新日期：2004-01-01 00:00:00

abstract：OBJECTIVE:Morning stiffness and plasma cytokine levels in rheumatoid arthritis (RA) patients exhibit 24-hour variations. Tumor necrosis factor-α (TNF-α) plays a central role in RA clinical conditions, including the invasion of inflammatory cells, destruction of cartilage, systemic inflammatory response and its levels s...

journal_title：Chronobiology international

authors： Yoshimatsu H,Okazaki F,Ieiri I,To H

更新日期：2014-05-01 00:00:00

abstract：:Recently, attention has been focused on the relationship among circadian typology, psychiatric symptoms, and personality traits. This study analyzes the influence of circadian typology on psychological distress, and the sensation-seeking personality trait. Five hundred seventeen college students (173 males), aged 17 t...

journal_title：Chronobiology international

authors： Prat G,Adan A

更新日期：2013-08-01 00:00:00

abstract：:The objectives of the study were to investigate the associations between night work and disability pension (DP) due to all causes, cardiovascular (CVD), mental, and other diagnoses, adjusting for familial confounding. The material of the study included comprehensive survey data on 27 165 Swedish twins born in 1935-195...

journal_title：Chronobiology international

authors： Ropponen A,Narusyte J,Mather L,Mittendorfer-Rutz E,Åkerstedt T,Svedberg P

更新日期：2018-02-01 00:00:00

abstract：:Ceftazidime, a third-generation cephalosporin, is widely used for the treatment of Pseudomonas aeruginosa infections. The aims of the present study were to characterize the pharmacokinetics of ceftazidime and to estimate the T > MIC against P. aeruginosa, after its intramuscular (i.m.) administration at two different ...

journal_title：Chronobiology international

authors： Monfrinotti A,Ambros L,Montoya L,Prados AP,Rebuelto M

更新日期：2010-05-01 00:00:00

abstract：:The aim of this study was to examine the impact of brief, unscheduled naps during work periods on alertness and vigilance in coastal pilots along the Great Barrier Reef. On certain routes, the duration of the work period can extend well beyond 24 h. Seventeen coastal pilots volunteered for the study, representing almo...

journal_title：Chronobiology international

authors： Ferguson SA,Lamond N,Kandelaars K,Jay SM,Dawson D

更新日期：2008-04-01 00:00:00

abstract：:Circadian phase dependency in pharmacokinetics and hemodynamic effects on blood pressure and heart rate of different galenic formulations of nifedipine (immediate-release, sustained-release, and i.v. solution) were studied in healthy subjects or in hypertensive patients. Pharmacokinetics of immediate-release but not s...

journal_title：Chronobiology international

authors： Lemmer B,Nold G,Behne S,Kaiser R

更新日期：1991-01-01 00:00:00

abstract：:Most research papers published in Chronobiology International report the findings of investigations conducted on laboratory animals and human beings. The Journal, its editors and the publication committee endorse the compliance of investigators to the principles of the Declaration of Helsinki of the World Medical Asso...

journal_title：Chronobiology international

authors： Touitou Y,Portaluppi F,Smolensky MH,Rensing L

更新日期：2004-01-01 00:00:00

abstract：:We ask if epidemiological studies into shift work and cancer may be prone to chronobiological errors. We illustrate how ignoring internal time (IT), or chronotype, may lead to what we call IT errors. Errors from truncating relevant external time (ET) information (activities start before and do not end with the shift) ...

journal_title：Chronobiology international

authors： Erren TC,Morfeld P

更新日期：2014-05-01 00:00:00

abstract：:Earlier we reported that in a number of experiments pineal melatonin production in rats under constant laboratory conditions displayed seasonal rhythms but subsequently were not always able to confirm this. Since there was no indication under which conditions such rhythms may be present, we performed four consecutive ...

journal_title：Chronobiology international

authors： Bartsch H,Mecke D,Probst H,Küpper H,Seebald E,Salewski L,Stehle T,Bartsch C

更新日期：2012-10-01 00:00:00

abstract：:We analyzed the effect of natural solar insolation and artificial photoperiodic conditions on melatonin MT1 receptor expression of a tropical rodent, Funambulus pennanti. Melatonin mediates reproductive and circadian responses and regulates the production of a large number of cytokines, including interleukin-2 (IL-2),...

journal_title：Chronobiology international

authors： Lahiri S,Haldar C

更新日期：2009-12-01 00:00:00

abstract：:Besides degrading vigilant attention, total sleep deprivation (TSD) impairs reversal learning performance and blunts affective reactions to feedback. Whether these effects are downstream consequences of information acquisition failures from degraded vigilant attention, or distinct from degraded vigilant attention, is ...

journal_title：Chronobiology international

authors： Lawrence-Sidebottom D,Hinson JM,Whitney P,Van Dongen HPA,Honn KA

更新日期：2020-09-22 00:00:00

abstract：:The length of the free-running period (τ) affects how an animal re-entrains after phase shifts of the light-dark (LD) cycle. Those with shorter periods adapt faster to phase advances than those with longer periods, whereas those with longer periods adapt faster to phase delays than those with shorter periods. The free...

journal_title：Chronobiology international

authors： Eastman CI,Molina TA,Dziepak ME,Smith MR

更新日期：2012-10-01 00:00:00

abstract：:Immune cell trafficking is crucial for surveillance and effector functions of the immune system. Circadian rhythms of the hypothalamic-pituitary-adrenal (HPA) axis and of cortisol have been implicated in circadian redistribution of circulating lymphocytes and granulocytes. However, information regarding the diurnal re...

journal_title：Chronobiology international

authors： Trifonova ST,Zimmer J,Turner JD,Muller CP

更新日期：2013-06-01 00:00:00

abstract：:Patients with resistant hypertension (RH) are at greater risk for stroke, renal insufficiency, and cardiovascular disease (CVD) events than are those for whom blood pressure (BP) is responsive to and well controlled by therapeutic interventions. Although all chronotherapy trials have compared the effects on BP regulat...

journal_title：Chronobiology international

authors： Hermida RC,Ríos MT,Crespo JJ,Moyá A,Domínguez-Sardiña M,Otero A,Sánchez JJ,Mojón A,Fernández JR,Ayala DE,Hygia Project Investigators.

更新日期：2013-03-01 00:00:00

abstract：:The pharmacokinetics of naproxen was studied in 12 healthy male volunteers after a single oral dose of 500 mg at 10:00 and 22:00 h. Ingestion of drug at 22:00 h delayed the occurrence of peak serum levels (p < 0.0212). None of the other pharmacokinetic parameters exhibited any significant diurnal variations. ...

journal_title：Chronobiology international

authors： Rao BR,Rambhau D,Rao VV

更新日期：1993-04-01 00:00:00

abstract：:Changes in rectal temperature during mild exercise in the middle of the rising (11:00 h) and falling (23:00 h) phases of the circadian rhythm of resting core temperature have been compared. Seven healthy males were studied at rest, while exercising on a cycle ergometer (60 min at 80 W), and during the first 30 min of ...

journal_title：Chronobiology international

authors： Waterhouse J,Aizawa S,Nevill A,Edwards B,Weinert D,Atkinson G,Reilly T

更新日期：2007-01-01 00:00:00

abstract：:It has frequently been reported that exposure to artificial light at night (ALAN) may cause negative health effects, such as breast cancer, circadian phase disruption and sleep disorders. Here, we reviewed the literature assessing the effects of human exposure to ALAN in order to list the health effects of various asp...

journal_title：Chronobiology international

authors： Cho Y,Ryu SH,Lee BR,Kim KH,Lee E,Choi J

更新日期：2015-01-01 00:00:00

abstract：:The effects of Chagas disease on the mammalian circadian system were studied in Trypanosoma cruzi-infected C57-B16J mice. Animals were inoculated with CAI or RA strains of T. cruzi or vehicle, parasitism confirmed by blood specimen visualization and locomotor activity rhythms analyzed by wheel-running recording. RA-st...

journal_title：Chronobiology international

authors： Fernández Alfonso T,Celentano AM,Gonzalez Cappa SM,Golombek DA

更新日期：2003-01-01 00:00:00

abstract：:The purpose of this study was to investigate the influence of rest-activity rhythm on the survival of cancer patients. This study collected data related to cancer patients experiencing pain who had been hospitalized for treatment between August 2006 and October 2007. Data included the Karnofsky Performance Status Inde...

journal_title：Chronobiology international

authors： Chang WP,Lin CC

更新日期：2014-10-01 00:00:00

abstract：:Stress is associated with significant losses in the swine industry. Seasonal changes have been shown to affect stress resistance in several species of animals. In the present study, we examined the effect of two seasons (fall or winter) on plasma insulin, cortisol, and adrenocorticotrophin hormone (ACTH) levels from f...

journal_title：Chronobiology international

authors： Roberts SA,Schaefer AL,Murray AC,Thibault L

更新日期：1998-05-01 00:00:00

abstract：:In amphibians, voltage-gated sodium (Nav) channels in cone ON bipolar cells (ON-CBC) amplify cone signals in the dark and in mesopic background light. However, during light adaptation, dopamine, acting through D1 receptors (D1R), suppresses Nav channels and therefore act as a gain control mechanism. Curiously in roden...

journal_title：Chronobiology international

authors： Smith BJ,Côté PD,Tremblay F

更新日期：2015-02-01 00:00:00

abstract：:Plasma triglyceride (TG) levels show a clear daily rhythm, however, thus far it is still unknown whether this rhythm results from a daily rhythm in TG production, TG uptake or both. Previous studies have shown that feeding activity affects plasma TG concentrations, but it is not clear how the daily rhythm in feeding a...

journal_title：Chronobiology international

authors： Su Y,Foppen E,Mansur Machado FS,Fliers E,Kalsbeek A

更新日期：2018-07-01 00:00:00

abstract：:In 24h studies of bone marrow (BM), circadian stage-dependent variations were demonstrated in the proliferative activity of BM cells from subsets of 35 healthy diurnally active men. On an average, the percentage of total BM cells in deoxyribonucleic acid (DNA) synthesis phase was 188% greater at midday than at midnigh...

journal_title：Chronobiology international

authors： Smaaland R,Sothern RB,Laerum OD,Abrahamsen JF

更新日期：2002-01-01 00:00:00

abstract：:Previous studies have reported sex differences in the pathophysiology of hypertension and responses to blood pressure (BP)-lowering medications. Moreover, men exhibit typically higher BP than women, the differences being greater for systolic (SBP) than diastolic (DBP) BP. These differences become apparent during adole...

journal_title：Chronobiology international

authors： Hermida RC,Ayala DE,Mojón A,Fontao MJ,Chayán L,Fernández JR

更新日期：2013-03-01 00:00:00

abstract：:Twenty-one children aged 5-6 years (mean age: 71.2 months; S.D. = 2.7) were videotaped in 4 different kindergartens throughout the school day for a period of one week. Eighteen of these children were then followed up after the summer holidays and videotaped for one week while attending the first year of primary school...

journal_title：Chronobiology international

authors： Koch P,Montagner H,Soussignan R

更新日期：1987-01-01 00:00:00

abstract：:Groups of photorefractory female subtropical house sparrows, Passer domesticus, when treated with 6 weeks of a short photocycle (8L:16D) showed significant ovarian growth on their return to a long photocycle (15L:9D). A 6-hr photophase coupled with scotophase of varying durations does not terminate the refractory peri...

journal_title：Chronobiology international

authors： Ravikumar G,Tewary PD

更新日期：1990-01-01 00:00:00