SLEEP AdvancesPub Date : 2023-10-01DOI: 10.1093/sleepadvances/zpad035.161
J Guzzetti, I Marando, M Owen, R Matthews, C Yates, S Banks
{"title":"P076 Comparing Four Different Simulated Shiftwork Schedules on Higher order Cognitive Function","authors":"J Guzzetti, I Marando, M Owen, R Matthews, C Yates, S Banks","doi":"10.1093/sleepadvances/zpad035.161","DOIUrl":"https://doi.org/10.1093/sleepadvances/zpad035.161","url":null,"abstract":"Abstract Introduction Changes in cognitive performance during shiftwork due to fatigue and circadian misalignment are well-documented. However experimental evaluations of shiftwork schedules are often limited to basic tasks such as vigilance and attention. The current study evaluated several higher order cognitive functions such as memory and task switching during four simulated shiftwork schedules. Methods N=27 completed a 10-day laboratory shiftwork simulation. They were randomly assigned to one of four shiftwork conditions: Condition A, 4h-on/4h-off/8h-on/8h-off schedule; Condition B, 6h-on/6h-off schedule; Conditions C and D represented to different sections of a 4h-on/4h-on call/4h-off/4h-on/4h-on call/4h-off schedule. The Automated Neuropsychological Assessment Metrics (ANAM) was used to assess cognitive function. The tasks included in this analysis were Code Substitution (CDS/CDD), Pursuit Tracking (PUR), Matching to Sample (M2S), and Switching Task (SWT). Stability of performance during waking was compared between the conditions using Kruskal-Wallis tests. Results The analysis of cognitive performance tasks yielded mixed findings. Performance on all tasks was ranked from best to worst: Condition D (>Conditions A, B, C; all p < .05), Condition A (>Conditions B, C; p < .05 and p <.001, respectively), Condition B, Condition C. Regarding stability of higher order cognitive function across the waking day, Condition A exhibited the worst stability, and was the only condition whereby performance degraded across the wake period. Discussion These findings highlight the variability in cognitive capacities during different shiftwork schedules. It is important to examine higher order cognitive function, and other cognitive abilities during shiftwork, when evaluating different shiftwork schedules.","PeriodicalId":21861,"journal":{"name":"SLEEP Advances","volume":"180 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136053889","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
SLEEP AdvancesPub Date : 2023-10-01DOI: 10.1093/sleepadvances/zpad035.164
G Vincent, H Thorne, R Sophocleous, A Shriane, C Vandelanotte, M Duncan, M Sprajcer, C Gupta, G Rigney, C Hilditch, T Kolbe-Alexander, M Thomas, S Ferguson
{"title":"P079 Shifting the Paradigm: Implementation Science in Enhancing Sleep Health among Shiftworkers","authors":"G Vincent, H Thorne, R Sophocleous, A Shriane, C Vandelanotte, M Duncan, M Sprajcer, C Gupta, G Rigney, C Hilditch, T Kolbe-Alexander, M Thomas, S Ferguson","doi":"10.1093/sleepadvances/zpad035.164","DOIUrl":"https://doi.org/10.1093/sleepadvances/zpad035.164","url":null,"abstract":"Abstract Introduction Addressing the urgent public health concern of sleep health among shiftworkers, our study examined the application and effectiveness of a tailored sleep intervention, the Sleepfit app. We assessed reach, effectiveness, adoption, and maintenance, while identifying potential implementation barriers across diverse shiftwork industries. Methods The two-phase study commenced with the Sleepfit app's optimisation, originally developed for day workers, by integrating sleep improvement strategies specifically for shiftworkers. The feasibility of large-scale implementation was then evaluated based on the RE-AIM framework, considering reach, effectiveness, adoption, implementation, and maintenance. The study involved existing shiftworkers (current sample, n=29; anticipated final sample n=90). Validated sleep health measures and RE-AIM metrics were used, with data analysed through a mixed-methods approach. Results Preliminary results indicate significant improvement in sleep satisfaction and reduction in insomnia severity, indicating the potential of the intervention in enhancing sleep outcomes. We also observed increased engagement with healthy sleep practices, demonstrated by a significant decrease in poor sleep behaviours. Interestingly, our preliminary findings propose specific benefits for younger shiftworkers who typically engage in problematic sleep practices. Preliminary data suggests 71% of shiftworkers engaged with the app at 2-weeks post intervention, with 23% continuing to use the app during long-term maintenance evaluation. As data collection is ongoing, a detailed analysis incorporating feasibility and all RE-AIM dimensions will be subsequently presented. Conclusion Preliminary findings suggest the Sleepfit app may serve as an effective sleep health intervention among shiftworkers, with further analyses needed to fully understand its feasibility and long-term adoption.","PeriodicalId":21861,"journal":{"name":"SLEEP Advances","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136054291","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
SLEEP AdvancesPub Date : 2023-10-01DOI: 10.1093/sleepadvances/zpad035.073
D Easton, C Gupta, G Vincent, S Ferguson
{"title":"O073 The Relationship between Circadian type and Physical Activity on Cognitive Performance during Simulated Nightshifts: A Randomised Controlled Trial.","authors":"D Easton, C Gupta, G Vincent, S Ferguson","doi":"10.1093/sleepadvances/zpad035.073","DOIUrl":"https://doi.org/10.1093/sleepadvances/zpad035.073","url":null,"abstract":"Abstract Introduction Physical activity might be a nonphotic strategy which could improve cognitive performance for nightshift workers. Innate characteristics like circadian type may also influence individual performance. Thus, this study explores the relationship between circadian type and physical activity on cognition over consecutive nightshifts. Methods Thirty-two healthy adults (age M±SD: 24.3±4.6 years; 19 females) participated in a 7-day laboratory study, with 5 nightshifts (2200-0600). Participants were randomised into the Breaking up sitting (BUS; n=19) or Sedentary (SED; n=13) condition. Overnight, BUS participants completed 3-min bouts of light-intensity walking every 30-min, while SED participants remained seated. At 2200, 0000, 0200, 0400 and 0600, participants completed the 10-min Psychomotor Vigilance Task (mean RRT). Participants completed the 11-item revised Circadian Type Inventory (factor 1: rigid/flexible; factor 2: languid/vigorous), resulting in four-subgroups (rigid; n= 12, flexible; n= 11, and languid; n= 11, vigorous; n= 13). Participants may only be one type from either factor (i.e. rigid and vigorous). Results Linear mixed models showed a significant 3-way interaction between nightshift (1-5), condition (BUS, SED), and circadian type (rigid/flexible) for mean RRT (p=0.03), such that flexible types in the Breaking up sitting condition outperformed Sedentary flexible types and Breaking up sitting rigid types, with performance worse on the first nightshift. There were no significant interactions between nightshift, condition and circadian type (languid/vigorous). Discussion Breaking up sitting improved performance for flexible types over rigid types. These findings have significant implications for nightshift rostering, suggesting that incorporating breaking up sitting may optimise cognitive performance, and therefore work efficiency.","PeriodicalId":21861,"journal":{"name":"SLEEP Advances","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136054373","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
SLEEP AdvancesPub Date : 2023-10-01DOI: 10.1093/sleepadvances/zpad035.045
S Gadam, K Rossa, C Pattinson, S Shekari Soleimanloo, D Mann, P Salmon, K Sullivan, S Smith
{"title":"O045 Sleep Duration is Associated with Young Adult's Heart Rate Variability Response to Stress","authors":"S Gadam, K Rossa, C Pattinson, S Shekari Soleimanloo, D Mann, P Salmon, K Sullivan, S Smith","doi":"10.1093/sleepadvances/zpad035.045","DOIUrl":"https://doi.org/10.1093/sleepadvances/zpad035.045","url":null,"abstract":"Abstract Introduction Young adulthood is a critical developmental period typified by heightened exposure to stress, and a tendency towards insufficient sleep. The relationship between sleep loss and stress may have lifelong health consequences. Currently, our understanding of this relationship in young adults is limited. Heart rate variability (HRV) is an important indicator of balance in the autonomic nervous system. We examined the association between sleep duration and HRV in response to cognitive stressors. Methods Seventy-six young adults (M=20.6±1.9, 72.4% female) who self-identified as short sleepers were recruited. Habitual sleep duration was monitored with actigraphy for two weeks. Participants subsequently underwent an in-lab experiment where their HRV was recorded during baseline, and during a cognitive stress condition involving the completion of computerised cognitive stress tasks. Participants also reported their habitual stress levels and sleep quality. Results Actigraphy assessment revealed that participants slept within the recommended sleep durations (M=7.8±0.7). The participants reported high habitual stress but normal sleep quality. Our moderation analysis indicates that shorter sleep duration was associated with elevated HRV during the cognitively demanding tasks. Conclusions Our findings demonstrate an association between sleep duration and HRV in the context of a cognitive stressor, indicating that sleep and stress are related in young adults. An unexpected negative relationship between sleep duration and HRV during the cognitively demanding tasks suggests complexity in this relationship; however, we should still look to reduce stress and improve sleep where we can in young adults. This association may be better understood via direct manipulation of sleep duration.","PeriodicalId":21861,"journal":{"name":"SLEEP Advances","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136054617","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
SLEEP AdvancesPub Date : 2023-10-01DOI: 10.1093/sleepadvances/zpad035.087
D Park, U Ryu, S Mun
{"title":"P002 Positive airway pressure adherence in children with sleep apnea may be similar to adults","authors":"D Park, U Ryu, S Mun","doi":"10.1093/sleepadvances/zpad035.087","DOIUrl":"https://doi.org/10.1093/sleepadvances/zpad035.087","url":null,"abstract":"Abstract Introduction Most pediatric patients with obstructive sleep apnea (OSA) are known to be treated with adenotonsillectomy (AT). However, in some of them, positive airway pressure (PAP) can be used for underlying diseases or in case of AT failure. Thus, PAP adherence and compliance were compared in pediatric OSA to adult OSA. Methods A retrospective study was conducted on 17 children and 167 adults who had performed polysomnography (PSG) and were prescribed PAP and followed up for more than 3 months from July 2018 to January 2023. Adherence was defined as the percentage of patients continuing to use PAP after prescription and compliance was defined as an average of more than 4 hours per night usage of 70% of the monitoring days. Results There were 11 males (64.7%) in pediatric and 141 males (84.4%) in adult patients. The mean age was 8.0 years (6.50-12.50) in pediatric and 50.0 years (41.00-58.00) in adult patients. The mean apnea hypopnea index (AHI) (37.0 vs 50.7) and Lowest O2 saturation (79.4% vs 75.5%) did not show any differences in the 2 groups. Longest apnea showed considerable differences (25.9 sec vs 50.8 sec) (p=0.000). After 18 months of PAP usage, AHI dropped from 37.0 to 5.1 vs 50.7 to 2.6, adherence decreased from 94.1% to 41.2% vs 90.4% to 38.9% (p=0.944), compliance reduced from 64.7% to 28.9% vs 67.0% vs 29.3% (p=0.268) in pediatric and adults groups. Conclusions There were no significant differences in adherence and compliance with PAP in children compared to adults.","PeriodicalId":21861,"journal":{"name":"SLEEP Advances","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136054624","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
SLEEP AdvancesPub Date : 2023-10-01DOI: 10.1093/sleepadvances/zpad035.063
C Tang, K Meredith-Jones, L Signal, B Galland
{"title":"O063 Objective Sleep Quality Metrics underlying next-day Sleep Quality Ratings in Adolescents","authors":"C Tang, K Meredith-Jones, L Signal, B Galland","doi":"10.1093/sleepadvances/zpad035.063","DOIUrl":"https://doi.org/10.1093/sleepadvances/zpad035.063","url":null,"abstract":"Abstract Introduction Good sleep quality is critical for good sleep health, but how sleep quality is defined remains uncertain; most defining it based solely on subjective or objective measures, and more recently, a combination of the two. PSG-derived sleep efficiency and WASO are linked to subjective sleep quality in healthy adults, but whether this is the same in adolescents (an age group notorious for not getting enough sleep), remains unknown. Aims To investigate which objective measures of sleep correlate with next-day ratings of sleep quality (primary outcome), sleep sufficiency, morning and daytime sleepiness, mood and concentration. Methods Seventy-one 16-17 y-olds (50% female) without anxiety/depression symptoms, completed a week of actigraphy and daily ratings of the subjective elements described above (469 days analysed). Statistical analyses used generalised estimating equation models. Results In unadjusted models, sleep quality showed significant within- and between-subject relationships with variables of sleep timing, amount, efficiency and variability. However after adjustment, total sleep time (TST) was the only metric that remained significant; for every 1 h less TST/night, teens were 1.56 (95%CI: 1.29, 1.88) times more likely to rate their sleep quality as poor rather than good. TST also correlated with daily mood ratings, and awakenings with morning sleepiness. No other significant relationships were found. Discussion The key sleep metric contributing to perceptions of sleep quality in adolescents was in fact one related to sleep quantity. Surprisingly, none of the sleep quality metrics used in sleep quality guidelines, linked to subjective ratings of sleep quality in this age group.","PeriodicalId":21861,"journal":{"name":"SLEEP Advances","volume":"131 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136054625","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
SLEEP AdvancesPub Date : 2023-10-01DOI: 10.1093/sleepadvances/zpad035.189
T Smithies, A Toth, M Campbell
{"title":"P104 The Impact of Total Sleep Deprivation on Performance in the Esport ‘Rocket League’.","authors":"T Smithies, A Toth, M Campbell","doi":"10.1093/sleepadvances/zpad035.189","DOIUrl":"https://doi.org/10.1093/sleepadvances/zpad035.189","url":null,"abstract":"Abstract Preliminary findings from this study were presented as a poster (P376) at Sleep Europe 2022 (https://doi.org/10.1111/jsr.13740). Introduction Sleep loss is presumed by academics and esport (organised competitive video-game play) athletes to be an in-game esport performance hindrance, primarily due to its well understood effects on multiple domains of cognitive performance. However, the effects of acute sleep loss specifically on esports performance have not been explored. We aimed to elucidate whether total sleep deprivation degrades in-game performance in the popular esport ‘Rocket League’. Methods Forty habitual Rocket League players were paired according to in-game ability level (twenty pairs), with one assigned to a control group (CON) and the other assigned to an intervention group (TSD). Two test sessions took place, in which paired players completed subjective and cognitive performance measures, and played seven Rocket League matches against one another. In one session, both players in a pair were well rested, while in the other, CON was rested while TSD was sleep deprived. Results Acute total sleep deprivation resulted in higher self-reported sleepiness, lower alertness and motivation, poorer performance on the Psychomotor Vigilance Task (PVT) and two-choice component of the Category Switch Task (CST). Despite this, overall in-game esport performance did not worsen due to sleep deprivation, although exploratory analysis suggests potential in-game strategy change. Discussion Our findings do not suggest that sleep loss is inconsequential for esport athletes, but rather suggest that acute bouts of sleep loss of similar/lesser severity may not be a primary concern for in-game esports performance.","PeriodicalId":21861,"journal":{"name":"SLEEP Advances","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136054770","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
SLEEP AdvancesPub Date : 2023-10-01DOI: 10.1093/sleepadvances/zpad035.069
E Botchway-Commey, C Godfrey, C Nicholas, V Anderson, C Catroppa
{"title":"O069 Links between sleep outcomes and lifestyle factors in young adults who sustained traumatic brain injury in childhood","authors":"E Botchway-Commey, C Godfrey, C Nicholas, V Anderson, C Catroppa","doi":"10.1093/sleepadvances/zpad035.069","DOIUrl":"https://doi.org/10.1093/sleepadvances/zpad035.069","url":null,"abstract":"Abstract Objective We investigated the relationships between subjective and objective sleep and lifestyle factors (i.e., nap duration, screentime, chronotype, use of tobacco, alcohol, caffeine, and medications) in young adults who sustained traumatic brain injury (TBI) in childhood. Methods We report cross-sectional data collected at 20 years post-childhood TBI, as part of a prospective study. Participants included 54 young adults with TBI (Mean age, 27.7years) who were assessed at 20 years postinjury (mild (n = 14), moderate (n = 27), and severe (n = 13) TBI) and 13 healthy controls (Mean age, 26.0 years). The Pittsburgh Sleep Quality Index and actigraphy were used to assess sleep outcomes, and lifestyle factors were assessed with study-designed measures. Results Results showed that poor subjective sleep quality was significantly associated with evening chronotype (p < 0.001) and tobacco use (p < 0.001), while being a parent (p = 0.038) and alcohol use (p = 0.035) were significantly associated with poorer objective sleep efficiency in the TBI group. Discussion These preliminary findings highlight interesting associations between poor sleep quality and lifestyle factors in young adults who sustained TBI in childhood, and indicate the need to further explore these relationships in this TBI population to inform on potential avenues for sleep interventions.","PeriodicalId":21861,"journal":{"name":"SLEEP Advances","volume":"124 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136054865","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
SLEEP AdvancesPub Date : 2023-10-01DOI: 10.1093/sleepadvances/zpad035.118
E Thomas, A Osman, L Calonzo, L Hall, M Agzarian, M Slee
{"title":"P033 Assessment of Upper Airway Dilator Muscle Function and Collapsibility in People with Multiple Sclerosis with Versus without Sleep Apnea","authors":"E Thomas, A Osman, L Calonzo, L Hall, M Agzarian, M Slee","doi":"10.1093/sleepadvances/zpad035.118","DOIUrl":"https://doi.org/10.1093/sleepadvances/zpad035.118","url":null,"abstract":"Abstract Introduction Upper airway reflex responses to negative pressure are important to prevent upper airway narrowing and closure. Recent evidence indicates ~30% of people with multiple sclerosis (MS) have an impaired upper airway dilator reflex response. Thus, the aims of this study were to compare genioglossus muscle reflex responses and upper airway collapsibility in non-obese people with MS, with and without OSA. Methods Non-obese adults with MS and OSA vs MS without OSA were instrumented with pressure sensors at the choanae and epiglottis. Bipolar fine wires were inserted into the genioglossus. A nasal mask and pneumotachograph were attached to a breathing circuit to deliver brief (~250ms) suction pressure (~-12cmH2O) during early inspiration every 2-10 breaths while awake. Genioglossus reflex onset latency, peak latency and peak amplitude were quantified. The upper airway collapsibility index was the percent difference between choanal and epiglottic airway pressures during negative pressure. Results 15 people with MS (6 males), aged 48±13years, BMI=25±3kg/m-2 and AHI=13±17events/h (mean±SD) were studied. 47% had OSA (AHI>10events/h). Genioglossus reflex excitation onset latency (22±2 vs. 24±19ms), peak excitation latency (37±11 vs. 38±23ms) and peak amplitude (258±125 vs. 205±95%) were not different between OSA vs. non-OSA. The upper airway was more collapsible in people with OSA (49±32 vs. 17±16%, p=0.04). Conclusions There is a high prevalence of OSA among non-obese people with MS. There was no systematic difference in upper airway dilator muscle function. However, the upper airway is ~65% more collapsible in people with MS and OSA despite absence of obesity.","PeriodicalId":21861,"journal":{"name":"SLEEP Advances","volume":"131 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136054866","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
SLEEP AdvancesPub Date : 2023-10-01DOI: 10.1093/sleepadvances/zpad035.059
C Pattinson, D Mann, J McKenzie, K Rossa, S Edmed, E Westwood, S Smith
{"title":"O059 Exploring Environmental Light Exposure in Children: A novel pilot spectrometer study","authors":"C Pattinson, D Mann, J McKenzie, K Rossa, S Edmed, E Westwood, S Smith","doi":"10.1093/sleepadvances/zpad035.059","DOIUrl":"https://doi.org/10.1093/sleepadvances/zpad035.059","url":null,"abstract":"Abstract Introduction Light plays an important role in the timing of children’s circadian system. Artificial manipulation of the timing, intensity, spectra, and duration of light exposure has increased, but with little consideration of the impact on children’s development, health, and wellbeing. Children are exposed to brighter nights, darker days, and less natural light environments than prior generations. Exploring the 24-hour light environment is a critical first step in understanding how light affects children. Methods We conducted a pilot feasibility and acceptability study. The study is of children aged 5 – 8 years. Children wore a miniature spectrometer and an actigraph for 48-hours. During this period, their parents completed a survey and daily time-use diary. At the end of the study, children undergo a short evaluation interview, as this is a new form of wearable not previously used with children. This study examines the feasibility and potential utility of this form of measurement. Results 5 children have been recruited into the study (3 boys, 2 girls). Initial feasibility testing with children supports high acceptability and adherence to the study protocol. This presentation will focus on both the technology development aspects, useability and feasibility in children, and preliminary results. Discussion This study presents preliminary data that supports the feasibility of novel light exposure metrics. Understanding the impact of increased use of digital devices by children, and increased control and manipulation of their light environments, requires new measures and protocols. These tools will help improve understanding of the effects of light on children’s sleep.","PeriodicalId":21861,"journal":{"name":"SLEEP Advances","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136054881","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}