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Understanding 24-Hour Movement Behaviours And Their Associations With Children’S Psychosocial Health During The Transition From Primary To Secondary School, Kar Hau Chong

University of Wollongong Thesis Collection 2017+

Background The transition from primary to secondary school is one of the life transition periods during which significant behavioural changes may occur. However, there is little evidence on concurrent changes in sleep, sedentary behaviour and physical activity (PA) (collectively known as 24-hour movement behaviours) over a 24-hour period during this school transition period. Further, the combined associations between time spent in 24-hour movement behaviours and psychosocial health are still under-researched in children. This information may inform the development of future movement behaviour intervention strategies and guidelines to assist children in making a healthy transition to secondary school. The overall aim …

Screen Time And Sleep Of Rural And Urban South African Preschool Children, Simone Tomaz, Trina Hinkley, Rachel A. Jones, Estelle Watson, Rhian Twine, Kathleen Kahn, Shane Norris, Catherine Draper

Faculty of Arts, Social Sciences and Humanities - Papers

This study aimed to investigate the extent to which preschool children meet guidelines for screen time (/day) and sleep (10–13 h/24-h) and explored home factors that affect these behaviors. Parents of preschoolers across income settings in South Africa (urban high-income n = 27, urban low-income n = 96 and rural low-income n = 142) completed a questionnaire. Urban high-income children had higher rates of exceeding screen time guidelines (67.0%) than children from urban low-income (26.0%) and rural low-income (3.5%) settings. Most children (81.0%) met sleep guidelines on weekdays and on weekends (75.0%). More urban high-income children met the sleep guideline, …

Relationships Between Early Childhood Education And Care Environments, Daily Movement Behaviours And Adiposity In Toddlers, Zhiguang Zhang

University of Wollongong Thesis Collection 2017+

The overall purpose of this Doctorate was to add to the evidence base on the relationships between the environment in early childhood education and care (ECEC) centres, movement behaviour (physical activity, sedentary behaviour and sleep), and adiposity, in young children.

This thesis comprises a literature review, followed by six studies: the first study (Environmental Characteristics of Early Childhood Education and Care Centres and Young Children’s Weight Status: A Systematic Review) systematically reviewed ECEC environmental correlates of weight status in children under the age of 6 years using a socio-environmental framework. From the eight included studies, 22 environmental characteristics were identified …

Gist Extraction And Sleep In 12-Month-Old Infants, Carolin Konrad, Jane S. Herbert, Silvia Schneider, Sabine Seehagen

Faculty of Social Sciences - Papers (Archive)

Gist extraction is the process of excerpting shared features from a pool of new items. The present study examined sleep and the consolidation of gist in 12-month-old infants using a deferred imitation paradigm. Sixty infants were randomly assigned to a nap, a no-nap or a baseline control condition. In the nap and no-nap conditions, infants watched demonstrations of the same target actions on three different hand puppets that shared some features. During a 4-h delay, infants in the nap condition took a naturally scheduled nap while infants in the no-nap condition naturally stayed awake. Afterwards, infants were exposed to a …

The Relationship Between Prior Night's Sleep And Measures Of Infant Imitation, Carolin Konrad, Jane S. Herbert, Silvia Schneider, Sabine Seehagen

Faculty of Social Sciences - Papers (Archive)

We examined whether sleep quality during the night and naps during the day preceding a learning event are related to memory encoding in human infants. Twenty-four 6- and twenty-four 12-month-old infants' natural sleeping behavior was monitored for 24 hr using actigraphy. After the recording period, encoding was assessed using an imitation paradigm. In an initial baseline phase, infants were allowed to interact with the stimulus to assess spontaneous production of any target actions. Infants then watched an experimenter demonstrate a sequence of three target actions and were immediately given the opportunity to reproduce the demonstrated target actions to assess memory …

Canadian 24-Hour Movement Guidelines For Children And Youth: An Integration Of Physical Activity, Sedentary Behaviour, And Sleep, Mark S. Tremblay, Valerie Carson, Jean-Phillipe Chaput, Sarah Connor Gorber, Thy Dinh, Mary Duggan, Guy Faulkner, Casey E. Gray, Reut Gruber, Katherine Janson, Ian Janssen, Peter Katzmarzyk, Michelle E. Kho, Amy E. Latimer-Cheung, Claire Leblanc, Anthony D. Okely, Timothy Olds, Russell R. Pate, Andrea Phillips, Veronica Poitras, Sophie Rodenburg, Margaret Sampson, Travis J. Saunders, James A. Stone, Gareth Stratton, Shelly K. Weiss, Lori Zehr

Faculty of Social Sciences - Papers (Archive)

Leaders from the Canadian Society for Exercise Physiology convened representatives of national organizations, content experts, methodologists, stakeholders, and end-users who followed rigorous and transparent guideline development procedures to create the Canadian 24-Hour Movement Guidelines for Children and Youth: An Integration of Physical Activity, Sedentary Behaviour, and Sleep. These novel guidelines for children and youth aged 5-17 years respect the natural and intuitive integration of movement behaviours across the whole day (24-h period). The development process was guided by the Appraisal of Guidelines for Research Evaluation (AGREE) II instrument and systematic reviews of evidence informing the guidelines were assessed using the …

Timely Sleep Facilitates Declarative Memory Consolidation In Infants, Sabine Seehagen, Carolin Konrad, Jane S. Herbert, Silvia Schneider

Faculty of Social Sciences - Papers (Archive)

Human infants devote the majority of their time to sleeping. However, very little is known about the role of sleep in early memory processing. Here we test 6- and 12-mo-old infants' declarative memory for novel actions after a 4-h [Experiment (Exp.) 1] and 24-h delay (Exp. 2). Infants in a nap condition took an extended nap (≥30 min) within 4 h after learning, whereas infants in a no-nap condition did not. A comparison with age-matched control groups revealed that after both delays, only infants who had napped after learning remembered the target actions at the test. Additionally, after the 24-h …

Becoming Crepuscular: Rethinking The Human Relationship To Day And Night, Ben Gallan

University of Wollongong Thesis Collection 1954-2016

This thesis is a critical geographic study of the human relationship to day and night. Historical and geographic analysis of one of these two categories – night – has accumulated in the last decade. Such work has explored the diverse meanings and experiences of night, and how they have changed with modernity. In the context of such research on night, this thesis contends that a closer consideration of the binary of night and day is needed. Humanities scholars and social scientists have critiqued binaries since the critical, poststructuralist and feminist turns of the 1970s and 1980s. Thus far, however, the …

Coblation-Assisted Lewis And Mackay Operation (Coblamo): New Technique For Tongue Reduction In Sleep Apnoea Surgery, Stuart Mackay, N Jefferson, L Grundy, R Lewis

Faculty of Science, Medicine and Health - Papers: part A

Background: Obstructive sleep apnoea is a common condition that is unfortunately associated with a high rate of patient non-compliance regarding device use. Newer surgical interventions have focused on procedures at the palate level, using variants of palatoplasty and transpalatal advancement. However, the extent of tongue reduction surgery required remains controversial. The authors propose an in-between variant that combines midline glossectomy resection (with minimal mucosal sacrifice) and lateral coblation tongue channelling. Method: Four patients underwent a coblation-assisted Lewis and MacKay operation, which is a new technique for tongue reduction. This involved a midline glossectomy combined with lateral coblation channelling of the …

Investigation Of The Relationship Between Sleep Duration, All-Cause Mortality, And Preexisting Disease, Christopher A. Magee, Elizabeth G. Holliday, John Attia, Leonard Kritharides, Emily Banks

Faculty of Social Sciences - Papers (Archive)

Objective: To examine the relationship between sleep duration and mortality and to quantify the likely impact of residual confounding due to poor health status on any observed association. Methods: The sample included 227,815 Australian adults aged 45 years and older recruited from 2006– 2009 (the 45 and Up Study). Sleep duration and relevant covariates (e.g., health status, demographic factors) were assessed through a self-report questionnaire. These data were linked with mortality data from the New South Wales Registry of Births, Deaths, and Marriages up to December 2010 (mean follow-up period, 2.8 y). Cox proportional hazards models examined the relationship between …

Does Access To Neighbourhood Green Space Promote A Healthy Duration Of Sleep? Novel Findings From A Cross-Sectional Study Of 259 319 Australians, Thomas Astell-Burt, Xiaoqi Feng, Gregory Kolt

Faculty of Social Sciences - Papers (Archive)

Objectives Experiments demonstrate that exposure to parks and other ‘green spaces’ promote favourable psychological and physiological outcomes. As a consequence, people who reside in greener neighbourhoods may also have a lower risk of short sleep duration (<6 h). This is potentially important as short sleep duration is a correlate of obesity, chronic disease and mortality, but so far this hypothesis has not been previously investigated.

Design Cross-sectional data analysis.

Setting New South Wales, Australia.

Participants This study investigated whether neighbourhood green space was associated with a healthier duration of sleep (to the nearest hour) among 259 319 Australians who completed the 45 and Up Study baseline questionnaire between 2006 and 2009 inclusive.

Primary and secondary outcome measures Multinomial logit regression was used to investigate the influence of an …

Short Sleep Duration Is Associated With Risk Of Future Diabetes But Not Cardiovascular Disease: A Prospective Study And Meta-Analysis, E G. Holliday, Christopher A. Magee, Leonard Kritharides, Emily Banks, John Attia

Faculty of Social Sciences - Papers (Archive)

Epidemiologic studies have observed association between short sleep duration and both cardiovascular disease (CVD) and type 2 diabetes, although these results may reflect confounding by pre-existing illness. This study aimed to determine whether short sleep duration predicts future CVD or type 2 diabetes after accounting for baseline health. Baseline data for 241,949 adults were collected through the 45 and Up Study, an Australian prospective cohort study, with health outcomes identified via electronic database linkage. Cox proportional hazards models were used to estimate hazard ratios (HR) and 95% confidence intervals. Compared to 7h sleep, <6h sleep was associated with incident CVD in participants reporting ill-health at baseline (HR=1·38 [95% CI: 1·12-1·70]), but not after excluding those with baseline illness and adjusting for baseline health status (1·03 [0·88-1·21]). In contrast, the risk of incident type 2 diabetes was significantly increased in those with <6h versus 7h sleep, even after excluding those with baseline illness and adjusting for baseline health (HR=1·29 [1·08-1·53], P=0.004). This suggests the association is valid and does not simply reflect confounding or reverse causation. Meta-analysis of ten prospective studies including 447,124 participants also confirmed an association between short sleep and incident diabetes (1·33 [1·20-1·48]). Obtaining less than 6 hours of sleep each night (compared to 7 hours) may increase type 2 diabetes risk by approximately 30%.

Beyond Uvulopalatopharyngoplasty For Obstructive Sleep Apnoea: Single Surgeon Case Series Of Contemporary Airway Reconstruction, S G. Mackay, N Jefferson, N S. Marshall

Faculty of Science, Medicine and Health - Papers: part A

Objective: Adult patients with obstructive sleep apnoea can be a therapeutic surgical challenge if other treatments fail or are rejected. We report the outcomes of a series of 17 patients for whom standard device-based treatments failed or could not be used. These patients were considered unsuitable for a lesser operation and therefore underwent multilevel upper airway reconstruction. Method: Data from 17 consecutive patients were collected prospectively. This included pre- and post-surgery findings for clinical assessments, body mass index, sleep questionnaires, and laboratory polysomnograms. Patients underwent a combination of modified uvulopalatopharyngoplasty, transpalatal advancement and various tongue reduction procedures. Results: Analyses revealed …

The Longitudinal Relationship Between Sleep Duration And Body Mass Index In Children: A Growth Mixture Modeling Approach, Christopher A. Magee, Peter Caputi, Donald C. Iverson

Faculty of Social Sciences - Papers (Archive)

OBJECTIVE: A growing number of studies indicate that shorter sleep durations could contribute to obesity in children. The objective of this article was to further examine the longitudinal relationship between sleep duration and body mass index (BMI) in children by using a growth mixture modeling approach. METHOD: This article used prospective data from the Longitudinal Study of Australian Children. Participants included 1079 children aged 4 to 5 years (2004) followed up until age 10 to 11 years (2010). Growth mixture modeling was performed to examine the longitudinal association between sleep duration and body mass index within distinct body mass index …

Are Parents' Working Patterns Associated With Their Child's Sleep? An Analysis Of Dual-Parent Families In Australia, Christopher A. Magee, Peter Caputi, Don C. Iverson

Faculty of Health and Behavioural Sciences - Papers (Archive)

Insufficient sleep in children predicts emotional and behavioral problems, poorer school performance, and health problems. Child sleep durations have declined in recent decades, suggesting a need to identify and understand predictors of short sleep. The present study investigated whether aspects of parental employment (i.e. parental work hours, and non-standard work hours) were associated with sleep in children. Data collected from 2477 children aged 6–7 years as part of the Longitudinal Study of Australian Children were used in this paper. Child sleep duration, bedtimes, and wake times were determined from parent self-report using time-use diaries. Parents completed a survey assessing their …

Short And Long Sleep Duration Are Associated With Prevalent Cardiovascular Disease In Australian Adults, Christopher A. Magee, Len Kritharides, John Attia, Patrick Mcelduff, Emily Banks

Faculty of Health and Behavioural Sciences - Papers (Archive)

A growing number of studies from a range of different countries have observed an association between sleep duration and cardiovascular disease. The objective of this paper was to examine the associations between sleep duration and prevalent cardiovascular disease in a large sample of Australian adults, and identify the sociodemographic and health-related factors moderating these associations. Participants included 218 155 Australian adults aged 45 years and over. The results indicated that 6 h versus 7 h sleep was associated with increased odds of heart disease [odds ratio (OR) = 1.11 (1.06–1.17)], diabetes [OR = 1.15 (1.09–1.22)], stroke [OR = 1.25 (1.14–1.38)] …

Examining The Pathways Linking Chronic Sleep Restriction To Obesity, Christopher A. Magee, Xu-Feng Huang, Donald C. Iverson, Peter Caputi

Faculty of Health and Behavioural Sciences - Papers (Archive)

A growing number of studies have identified chronic sleep restriction as a potential risk factor for obesity. This could have important implications for how obesity is prevented and managed, but current understanding of the processes linking chronic sleep restriction to obesity is incomplete. In this paper, we examined some of the pathways that could underlie the relationship between chronic sleep restriction and obesity. This involved exploring some of the potential environmental, health, behavioral, and sociodemographic determinants of chronic sleep restriction, which require further investigation in this context. Three pathways that could potentially link chronic sleep restriction to obesity were then …

Sleep Duration And Obesity In Middle-Aged Australian Adults, Christopher A. Magee, Donald C. Iverson, Peter Caputi

Faculty of Health and Behavioural Sciences - Papers (Archive)

The present study examined the association between sleep duration and obesity in 40,834 middle-aged Australian adults. Multinomial logistic regression was used to test the relationship between sleep duration and obesity while controlling for important demographic and health covariates; separate models were tested for males and females. Short sleep (i.e., <7 h a night) was found to be independently associated with obesity in males and females. To our knowledge, this is the first study to report an association between short sleep and obesity in Australian adults. Although more research is required, interventions targeting short sleep could aid obesity treatment and prevention.

Is Sleep Duration Associated With Obesity In Older Australian Adults?, Christopher A. Magee, Peter Caputi, Don C. Iverson

Faculty of Health and Behavioural Sciences - Papers (Archive)

Objectives: To investigate the relationship between sleep duration and obesity in older Australian adults. Method: Self-reported health data were collected through the 45 and Up Study. Multinomial logistic regression models were used to test the relationship between sleep duration and body mass index, controlling for a range of demographic and health-related variables. Results: The sample included 45,325 Australian adults aged 55 to 95 years. The regression models demonstrated that short and long sleep were associated with obesity in 55- to 64-year-olds but not in those aged 65 years and above. Discussion: The present results suggest that the relationships between sleep …

Nonlinear Aspects Of The Eeg During Sleep In Children, Matthew J. Berryman, Scott W. Coussens, Yvonne Pamula, Declan Kennedy, Kurt Lushington, Cosma Shalizi, Andrew Allison, A James Martin, David Saint, Derek Abbott

Faculty of Engineering - Papers (Archive)

Electroencephalograph (EEG) analysis enables the dynamic behavior of the brain to be examined. If the behavior is nonlinear then nonlinear tools can be used to glean information on brain behavior, and aid in the diagnosis of sleep abnormalities such as obstructive sleep apnea syndrome (OSAS). In this paper the sleep EEGs of a set of normal children and children with mild OSAS are evaluated for nonlinear brain behaviour. We found that there were differences in the nonlinearity of the brain behaviour between different sleep stages, and between the two groups of children.

Sleep: Ghostwriting, Su Ballard

Faculty of Creative Arts - Papers (Archive)

No abstract provided.