Chronobiology International最新文献

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Systematic review of actigraphy measures associated with behavioral and psychological symptoms of dementia. 与痴呆行为和心理症状相关的活动描记测量的系统回顾。
IF 1.7 4区 医学
Chronobiology International Pub Date : 2025-07-01 Epub Date: 2025-05-08 DOI: 10.1080/07420528.2025.2496350
Dorothy Yam, Juleen Rodakowski, Stephen F Smagula
{"title":"Systematic review of actigraphy measures associated with behavioral and psychological symptoms of dementia.","authors":"Dorothy Yam, Juleen Rodakowski, Stephen F Smagula","doi":"10.1080/07420528.2025.2496350","DOIUrl":"10.1080/07420528.2025.2496350","url":null,"abstract":"<p><p>We performed a systematic review evaluating evidence regarding whether/which 24-h sleep-wake characteristics (e.g. sleep, activity levels, and 24-h rhythms) related to worse BPSDs. We searched PubMed for cross-sectional observational studies of people with dementia examining relationships between actigraphy-measured sleep/wake factors and BPSDs (search completed June 2024). We used the JBI checklists to assess the risk of bias and summarize results within subcategories of sleep/wake (sleep, activity level, and rhythm) and BPSD (composite, agitation, apathy, and mood/affect) dimensions. Thirteen articles met inclusion criteria. Measures of inactivity were most frequently examined and correlated with: (a) greater apathy (6/6 studies); (b) worse depression (only in bivariate analyses in 1 study); (c) more agitation (2/3 studies); and (d) higher composite BPSD scores (1/2 studies). All six studies measuring sleep duration failed to identify associations with BPSDs. Studies examining sleep continuity measures generally found associations, i.e. with a BPSD composite (1 study), agitation (1 study), apathy (1/2 studies), and mood (only in bivariate analyses in 1 study). Studies examining rhythm variables found associations with mood (1 study), mixed evidence for associations with apathy (1 study), and no evidence for association with a BPSD composite (1 study). Actigraphy measures of inactivity are associated with apathy in people with dementia. Due to relatively low numbers of articles, future studies are needed to confirm if inactivity, sleep continuity issues, rhythm disruption, and timing independently relate to BPSDs, and if changes in objective sleep/wake measures, e.g. increase in activity following intervention, signal/mediate improvements in BPSDs.</p>","PeriodicalId":10294,"journal":{"name":"Chronobiology International","volume":" ","pages":"921-930"},"PeriodicalIF":1.7,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12279455/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143964130","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Impact of chronotype on depression: The mediating roles of rumination and perceived stress. 时间类型对抑郁的影响:反刍和感知压力的中介作用。
IF 2.2 4区 医学
Chronobiology International Pub Date : 2025-07-01 Epub Date: 2025-05-29 DOI: 10.1080/07420528.2025.2511263
Haowen Zou, Xumiao Wang, Ciqing Bao, Hao Sun, Qiudong Xia, Zhilu Chen, Hongliang Zhou, Rui Yan, LingLing Hua, Domenica Veniero, Qing Lu, Zhijian Yao
{"title":"Impact of chronotype on depression: The mediating roles of rumination and perceived stress.","authors":"Haowen Zou, Xumiao Wang, Ciqing Bao, Hao Sun, Qiudong Xia, Zhilu Chen, Hongliang Zhou, Rui Yan, LingLing Hua, Domenica Veniero, Qing Lu, Zhijian Yao","doi":"10.1080/07420528.2025.2511263","DOIUrl":"10.1080/07420528.2025.2511263","url":null,"abstract":"<p><p>Chronotype represents an independent risk factor for depression, yet the psychological mechanisms underlying this association remain unclear. Potential mediators may include social jetlag (SJL), sleep quality, rumination, and perceived stress. Thus, this China-based study enrolled 122 patients with Depressive Episode (DE) and 126 healthy Controls (HC), assessing participants using: the Beck Depression Inventory (BDI), Morningness-Eveningness Questionnaire (MEQ), Munich Chronotype Questionnaire (MCTQ), Pittsburgh Sleep Quality Index (PSQI), Ruminative Response Scale (RRS), and Perceived Stress Scale (PSS). Partial Spearman correlations examined relationships between BDI scores, chronotype, sleep quality, rumination, and perceived stress within each group. Mediation analyses employed MEQ scores as the independent variable and diagnostic status (DE vs HC) as the dependent variable, with moderated mediation analyses assessing age, sex, and work status influences. Results revealed significant indirect effects of chronotype on depression status through: sleep quality, symptom rumination, brooding, reflective pondering, PSS scores, perceived helplessness, and perceived self-efficacy. These mediating effects were moderated by sex or work status, but not age. The demonstrated association between evening chronotype and increased depression risk suggests that clinical interventions targeting sleep improvement, rumination reduction, and stress coping enhancement may be particularly beneficial for such individuals experiencing depressive symptoms.</p>","PeriodicalId":10294,"journal":{"name":"Chronobiology International","volume":" ","pages":"864-878"},"PeriodicalIF":2.2,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144179859","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Locomotor activity rhythms in cavefish Astyanax mexicanus under slow magnetic fluctuations. 慢磁波动下洞穴鱼的运动活动节律。
IF 2.2 4区 医学
Chronobiology International Pub Date : 2025-07-01 Epub Date: 2025-06-03 DOI: 10.1080/07420528.2025.2513436
Vera Pavlova, Viacheslav Krylov, Natalia Pankova, Artem Dushko, Elena Osipova
{"title":"Locomotor activity rhythms in cavefish <i>Astyanax mexicanus</i> under slow magnetic fluctuations.","authors":"Vera Pavlova, Viacheslav Krylov, Natalia Pankova, Artem Dushko, Elena Osipova","doi":"10.1080/07420528.2025.2513436","DOIUrl":"10.1080/07420528.2025.2513436","url":null,"abstract":"<p><p>The Earth's magnetic field undergoes slow diurnal variations, yet their potential role as environmental cues influencing biological rhythms remains poorly understood. This study examines whether such geomagnetic fluctuations can entrain locomotor activity rhythms in the blind Mexican cavefish (Astyanax mexicanus), a species with reduced circadian regulation due to life in perpetual darkness. Fish were exposed to artificially altered geomagnetic variations with extended (27 h) or shortened (21 h) periods, while control groups experienced natural diurnal fluctuations. Locomotor activity was continuously recorded and analyzed using periodograms. The results indicate that slow geomagnetic fluctuations did not entrain locomotor rhythms in A. mexicanus. Instead, significant individual variability was observed, with some fish displaying rhythmicity, while others did not. Notably, rhythmic individuals exhibited lower average swimming speeds than arrhythmic ones. Arrhythmic individuals were more common among larger fish. These findings suggest that the circadian regulation reduction in A. mexicanus prevents possible synchronization with weak magnetic cues. Furthermore, the observed correlation between locomotor rhythmicity, body size, and swimming speed highlights potential physiological or metabolic differences underlying inter-individual variability.</p>","PeriodicalId":10294,"journal":{"name":"Chronobiology International","volume":" ","pages":"825-832"},"PeriodicalIF":2.2,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144215014","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Global research trends on exercise and circadian rhythm: A bibliometric analysis. 运动与昼夜节律的全球研究趋势:文献计量学分析。
IF 2.2 4区 医学
Chronobiology International Pub Date : 2025-07-01 Epub Date: 2025-05-30 DOI: 10.1080/07420528.2025.2501339
Yu Gu, Yongchao Xie, Wenduo Liu, Zilin Wang, Dong-Hun Seong, Sang Hyun Kim
{"title":"Global research trends on exercise and circadian rhythm: A bibliometric analysis.","authors":"Yu Gu, Yongchao Xie, Wenduo Liu, Zilin Wang, Dong-Hun Seong, Sang Hyun Kim","doi":"10.1080/07420528.2025.2501339","DOIUrl":"10.1080/07420528.2025.2501339","url":null,"abstract":"<p><p>Recent advancements in the field of exercise and circadian rhythms have brought attention to the potential for tailored exercise strategies based on individual biological rhythms, aiming to optimize both health and performance, yet there is a lack of bibliometric analysis within this specific area of research. This study seeks to provide an extensive insight into the knowledge structure and primary research focuses on the correlation between exercise and circadian rhythms using bibliometric analysis. Publications pertinent to exercise and circadian rhythms were sourced from the Web of Science Core Collection (WoSCC) database. Utilizing VOSviewer, CiteSpace, and the R package \"bibliometrix,\" a thorough bibliometric analysis was conducted. The analysis encompassed publications from 83 countries and 2025 institutions focusing on exercise and circadian rhythms. Leading contributors included the USA, England, France, Japan, and Germany, with an increasing number of publications annually. Notable institutions like Liverpool John Moores University, Univ Sfax, Brigham Women's Hosp, and Univ Milan ranked among the top contributors. Chronobiology International emerged as the most popular journal in this domain. These publications were attributed to 4402 authors, with Thomas Reilly and Greg Atkinson receiving the most citations, particularly Reilly being the most co-cited author. Dominant research topics included circadian rhythm, quality, skeletal muscle, and entrainment, while emerging hotspots comprised sports performance, mental health validity, older adults, and the sleep-wake cycle. This study marks the first comprehensive bibliometric analysis summarizing research trends and developments in exercise and circadian rhythms. This collection pinpoints the latest research frontiers and promising avenues, acting as a valuable resource for researchers investigating the connection between exercise and circadian rhythms.</p>","PeriodicalId":10294,"journal":{"name":"Chronobiology International","volume":" ","pages":"931-944"},"PeriodicalIF":2.2,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144186690","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The role of circadian preferences in the bidirectional link between sleep quality and depressive symptoms: A cross-lagged panel design. 昼夜节律偏好在睡眠质量和抑郁症状之间的双向联系中的作用:一个交叉滞后的面板设计
IF 2.2 4区 医学
Chronobiology International Pub Date : 2025-07-01 Epub Date: 2025-06-03 DOI: 10.1080/07420528.2025.2513433
Ana Petak, Miranda Novak
{"title":"The role of circadian preferences in the bidirectional link between sleep quality and depressive symptoms: A cross-lagged panel design.","authors":"Ana Petak, Miranda Novak","doi":"10.1080/07420528.2025.2513433","DOIUrl":"10.1080/07420528.2025.2513433","url":null,"abstract":"<p><p>Poor sleep quality is strongly linked to depressive symptoms; however, the mediators of this relationship are not well understood. Circadian preferences (CP) emerge as one of the possible mediators underlying this relationship. Previous studies have focused on clinical samples, employed cross-sectional designs and neglected emerging adulthood stage. This study aimed to explore causal relationships using two-wave longitudinal data. The final sample included 272 students from the University of Zagreb (79% female), aged between 18 and 25 years (<i>M</i> = 20.08, SD = 1.14). The Cross-Lagged Panel Model (CLPM) with mediation was employed to test the bidirectional link between sleep quality and depressive symptoms, considering the mediating effect of CP. According to the results, the relationship between sleep quality and depressive symptoms is reciprocal. The effect size indicates that sleep quality has a statistically significant predictive effect on depressive symptoms over time, and vice versa. Mediation analysis revealed that CP did not significantly mediate the relationship between sleep quality and depressive symptoms. CP significantly influenced sleep quality but did not independently contribute to depressive symptoms, suggesting that other mechanisms may be involved in this relationship, such as genetic influences or emotional regulation. The bidirectional relationship between sleep quality and depressive symptoms has significant implications for effective treatment and the prevention of future issues and poorer prognoses. Environmental interventions designed to enhance sleep quality may prevent the onset of depression or reduce existing depressive symptoms. To maximize the effectiveness of these interventions, further research into the mediators of this relationship is essential.</p>","PeriodicalId":10294,"journal":{"name":"Chronobiology International","volume":" ","pages":"893-904"},"PeriodicalIF":2.2,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144215015","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Population-level analysis of circadian variations in blood cells. 血细胞昼夜节律变化的人群水平分析。
IF 2.2 4区 医学
Chronobiology International Pub Date : 2025-07-01 Epub Date: 2025-05-28 DOI: 10.1080/07420528.2025.2511266
Patricia Fuentes-Bullejos, David Melguizo-Melguizo, María Carmen Lorenzo-Lozano, Alfonso Luis Blázquez-Manzanera
{"title":"Population-level analysis of circadian variations in blood cells.","authors":"Patricia Fuentes-Bullejos, David Melguizo-Melguizo, María Carmen Lorenzo-Lozano, Alfonso Luis Blázquez-Manzanera","doi":"10.1080/07420528.2025.2511266","DOIUrl":"10.1080/07420528.2025.2511266","url":null,"abstract":"<p><p>Knowledge of circadian rhythms is crucial in laboratory medicine to understand disease pathophysiologies and improve patient diagnoses and treatments. Here, we aim to determine whether circadian variations in blood cells are present at a population level and assess whether these rhythms are consistent with those reported previously in individuals. In a retrospective observational study we employed blood sample data analyzed at a local emergency laboratory over a period of 7 years, including the number of blood cells, time of sample collection, and patient age (between 18 and 85 years). Data showing cell counts outside the normal range were excluded, yielding a dataset consisting of 189,635 individual data points from 164,982 different patients. Records were grouped into 30-min intervals to determine their temporal distribution and average wave. We detected a circadian rhythm in all studied blood cell types (<i>p</i> < 0.01), with all except neutrophils peaking during the resting phase and exhibiting minimum values during the activity phase. Results were confirmed through parametric and nonparametric analyses. To the best of our knowledge, this is the first report of a significant circadian rhythm in blood cells at population level. The observed temporal variations at population level are comparable to those previously described for individuals.</p>","PeriodicalId":10294,"journal":{"name":"Chronobiology International","volume":" ","pages":"833-839"},"PeriodicalIF":2.2,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144157152","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Association between chronotype and central sensitization in patients with non-specific low back pain. 非特异性腰痛患者时型与中枢致敏的关系
IF 2.2 4区 医学
Chronobiology International Pub Date : 2025-07-01 Epub Date: 2025-06-09 DOI: 10.1080/07420528.2025.2515990
Aslı Çalışkan Uçkun, Nesibe Doğan, Buğra İnce, Şeniz Akçay, Taciser Kaya, Altınay Göksel Karatepe
{"title":"Association between chronotype and central sensitization in patients with non-specific low back pain.","authors":"Aslı Çalışkan Uçkun, Nesibe Doğan, Buğra İnce, Şeniz Akçay, Taciser Kaya, Altınay Göksel Karatepe","doi":"10.1080/07420528.2025.2515990","DOIUrl":"10.1080/07420528.2025.2515990","url":null,"abstract":"<p><p>Low back pain is a leading cause of disability, with over 85% of cases classified as non-specific (NSLBP). Beyond mechanical causes, central sensitization (CS) has been recognized as a key mechanism in chronic pain. This study investigated the relationship between chronotype (morning, intermediate, evening) and CS severity in NSLBP patients, and whether chronotype is associated with pain intensity and disability. A total of 131 patients (aged 18-65) were assessed using the Morningness-Eveningness Questionnaire (MEQ), Central Sensitization Inventory (CSI), Pain Catastrophizing Scale (PCS), Beck Depression Inventory (BDI), Pittsburgh Sleep Quality Index (PSQI), Visual Analogue Scale (VAS), and Roland-Morris Disability Questionnaire (RMDQ). Three-way ANCOVA (controlling for age, gender, and occupation) revealed that evening-type individuals had significantly higher CSI, PCS, BDI, PSQI, and RMDQ scores (all <i>p</i> < 0.05). Hierarchical regression analysis showed that evening chronotype (β = 0.193, <i>p</i> = 0.004), pain catastrophizing (β = 0.508, <i>p</i> < 0.001), and depressive symptoms (β = 0.435, <i>p</i> < 0.001) were independent predictors of CS severity. These findings suggest that eveningness is associated with more severe central sensitization and adverse psychosocial outcomes in NSLBP. Chronotype may play a role in pain modulation and should be considered in assessment and management strategies.</p>","PeriodicalId":10294,"journal":{"name":"Chronobiology International","volume":" ","pages":"913-920"},"PeriodicalIF":2.2,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144246677","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The circadian rhythm of human body temperature - Clinical implications and review of the literature. 人体体温的昼夜节律-临床意义和文献综述。
IF 2.2 4区 医学
Chronobiology International Pub Date : 2025-07-01 Epub Date: 2025-05-28 DOI: 10.1080/07420528.2025.2511268
Ivayla I Geneva
{"title":"The circadian rhythm of human body temperature - Clinical implications and review of the literature.","authors":"Ivayla I Geneva","doi":"10.1080/07420528.2025.2511268","DOIUrl":"10.1080/07420528.2025.2511268","url":null,"abstract":"<p><p>Human body temperature remains an essential vital sign that had been used to judge our health given its strong correlation with human disease. Body temperature is also a manifestation of our circadian rhythm, with a predictable rise during the day peaking in the evenings and steady decrease during the night reaching a minimum around the time of awakening. Yet, the rhythm is believed to be endogenous and to exist independently of any external stimuli, including day light. Human illnesses such as infections, autoimmune conditions, and cancer had been associated with a disruption in the circadian rhythm. This is of significant clinical interest because measurements of the specific disruptions of the rhythm appear to carry diagnostic and prognostic value. This is a review of the literature with a focus on the determinants of human body temperature and the circadian rhythm of body temperature. The last section provides potential new research avenues in our search for chronotherapy clinical applications.</p>","PeriodicalId":10294,"journal":{"name":"Chronobiology International","volume":" ","pages":"945-958"},"PeriodicalIF":2.2,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144157154","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The prevalence of morningness-eveningness in university-level students of North-East India: Impact on their sleep physiology and metabolic processes. 印度东北部大学生中“早睡晚睡”的流行:对他们睡眠生理和代谢过程的影响。
IF 2.2 4区 医学
Chronobiology International Pub Date : 2025-07-01 Epub Date: 2025-06-02 DOI: 10.1080/07420528.2025.2511259
Ankita Bhattacharjee, Arijit Chakraborty
{"title":"The prevalence of morningness-eveningness in university-level students of North-East India: Impact on their sleep physiology and metabolic processes.","authors":"Ankita Bhattacharjee, Arijit Chakraborty","doi":"10.1080/07420528.2025.2511259","DOIUrl":"10.1080/07420528.2025.2511259","url":null,"abstract":"<p><p>Differences in circadian timing among individuals and the time of day are potential biological sources that might impact student's activities. As previous studies have reported that young adults are more susceptible to sleep deprivation, so the goal of the present study was to investigate the prevalence of chronotype, and its associations between circadian preferences, sleep and its physiological implications, cognitive performances and metabolic profiles among university-level students in the north-eastern parts of the Indian subcontinent. Majority of the students fall in intermediate chronotype in our study with the evening chronotypes having poor sleep quality, leading to low cognitive function that in turn causes periods of anxiety and stress which was reflected in salivary cortisol levels. The evening chronotypes also exhibited lower nocturnal melatonin levels compared to morning types and had difficulty in falling to sleep with elevated oral temperatures. Elevated BMI status and frequencies of fast-food intake were also high in evening chronotypes, which may increase the chances of obesity in them and also prone to hyperglycemia as indicated by higher fasting blood sugar and salivary amylase levels. The metabolic profiles were also altered in late chronotypes as evidenced by low thyroid hormone profiles and higher triglyceride levels. Our study reports intermediate chronotypes along with evening types are at the risk of developing sleep deprived disorders in the future, and it is important that researchers should develop tailored sleep interventions that consider demographic, psychological, and socio-behavioral factors contributing to poor sleep quality, excessive daytime sleepiness, and short sleep duration among students.</p>","PeriodicalId":10294,"journal":{"name":"Chronobiology International","volume":" ","pages":"840-863"},"PeriodicalIF":2.2,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144198388","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Intraindividual variability in sleep patterns and behavioral problems among preschool children: The role of bedtime and total sleep time variability. 学龄前儿童睡眠模式和行为问题的个体差异:就寝时间和总睡眠时间差异的作用。
IF 2.2 4区 医学
Chronobiology International Pub Date : 2025-07-01 Epub Date: 2025-06-05 DOI: 10.1080/07420528.2025.2515979
Tomoki Nakatani, Norihisa Tamura
{"title":"Intraindividual variability in sleep patterns and behavioral problems among preschool children: The role of bedtime and total sleep time variability.","authors":"Tomoki Nakatani, Norihisa Tamura","doi":"10.1080/07420528.2025.2515979","DOIUrl":"10.1080/07420528.2025.2515979","url":null,"abstract":"<p><p>Sleep stability is critical for early childhood development, yet many children experience variability in sleep patterns that may affect behavioral health. This study examines the impact of intra-individual variability (IIV) in sleep on behavioral issues in young children, independent of average nighttime sleep duration reported via BISQ. A sample of 306 children aged 1.5 to 5 years was recruited through the Health and Social Welfare Division, A City. Caregivers reported sleep patterns using daily activity logs, and behavioral problems were assessed using the Child Behavior Checklist 1½-5. Main sleep measures included total sleep time and weekly standard deviations of bedtime, wake time, and total sleep time, reflecting sleep IIV. Logistic regression analyses adjusted for confounding factors (e.g. child age, birth order, maternal age at birth) indicated that higher IIV in bedtime was significantly associated with increased internalizing problems, while greater IIV in total sleep time was linked to externalizing problems. Both indicators of IIV were also associated with overall behavioral problems, independent of average nighttime sleep duration. These findings underscore the relevance of consistent sleep-wake rhythms for emotional and behavioral stability in early childhood and indicate that addressing sleep IIV could support efforts to foster healthier behavioral development.</p>","PeriodicalId":10294,"journal":{"name":"Chronobiology International","volume":" ","pages":"905-912"},"PeriodicalIF":2.2,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144224546","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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