Brian W. Timmons
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View article: Mental disorder comorbidity in children and youth with chronic physical illness: A 48-month follow-up
Mental disorder comorbidity in children and youth with chronic physical illness: A 48-month follow-up Open
Mental disorder is prevalent and persistent in children and youth with physical illness. Child/youth disability and parent psychopathology may be priority targets to prevent and screen for physical-mental comorbidity in children and youth.
View article: Inflammatory Biomarkers Predictive of Psychopathology in Children With Physical Illness
Inflammatory Biomarkers Predictive of Psychopathology in Children With Physical Illness Open
Background While evidence shows that children with chronic physical illness are at increased risk for psychopathology, the causal mechanisms linking physical and mental illness early in life remain unconfirmed. Objective Given a lack of lo…
View article: Guide de pratique clinique pour la prise en charge de l’obésité chez l’enfant
Guide de pratique clinique pour la prise en charge de l’obésité chez l’enfant Open
CONTEXTE: L’obésité est une maladie chronique complexe et stigmatisante caractérisée par une accumulation anormale ou excessive de graisse corporelle susceptible de nuire à la santé, d’accroître le risque de complications médicales et de r…
View article: Repairing Myelin After Irradiated Pediatric Brain Tumor: A Magnetization Transfer Imaging Analysis
Repairing Myelin After Irradiated Pediatric Brain Tumor: A Magnetization Transfer Imaging Analysis Open
Background While exercise training and metformin treatment have demonstrated preliminary cognitive improvements in pediatric brain tumor (PBT) survivors, the neuronal mechanisms underlying their cognitive improvements are unclear. Diffusio…
View article: Development and accuracy of a novel machine learning model to detect toddlers’ physical activity and sedentary time using accelerometers: Little Movers Activity Analysis
Development and accuracy of a novel machine learning model to detect toddlers’ physical activity and sedentary time using accelerometers: Little Movers Activity Analysis Open
Objective: (1) develop and test a novel, open-source, supervised machine learning model to detect toddlers’ physical activity (PA) and sedentary time (SED); (2) compare this novel machine learning model to existing cut-point methods to ana…
View article: Managing obesity in children: a clinical practice guideline
Managing obesity in children: a clinical practice guideline Open
This guideline will support children, families, and health care providers to have informed discussions about the balance of benefits and harms for available obesity management interventions to support value- and preference-sensitive decisi…
View article: The efficacy of the TEACH e-Learning course at improving early childhood educators’ physical activity and sedentary behaviour self-efficacy, knowledge, intentions, and perceived behavioural control: a randomized controlled trial
The efficacy of the TEACH e-Learning course at improving early childhood educators’ physical activity and sedentary behaviour self-efficacy, knowledge, intentions, and perceived behavioural control: a randomized controlled trial Open
View article: Fact or Fiction—Accelerometry Versus Self-Report in Adherence to Pediatric Concussion Protocols: Prospective Longitudinal Cohort Study
Fact or Fiction—Accelerometry Versus Self-Report in Adherence to Pediatric Concussion Protocols: Prospective Longitudinal Cohort Study Open
Background Concussion, or mild traumatic brain injury, is a growing public health concern, affecting approximately 1.2% of the population annually. Among children aged 1‐17 years, concussion had the highest weighted prevalence compared to …
View article: QOL-23. POTENTIAL MYELIN REPAIR AFTER IRRADIATED PEDIATRIC BRAIN TUMOR: A MAGNETIZATION TRANSFER IMAGING ANALYSIS
QOL-23. POTENTIAL MYELIN REPAIR AFTER IRRADIATED PEDIATRIC BRAIN TUMOR: A MAGNETIZATION TRANSFER IMAGING ANALYSIS Open
BACKGROUND Exercise training and metformin treatment may improve cognition after cranial irradiation in pediatric brain tumors (PBT), but the neuronal mechanisms underlying the effect of these interventions remains unknown. Magnetization t…
View article: The Concussion, Exercise, and Brain Networks (ConExNet) study: a cohort study aimed at understanding the effects of sub-maximal aerobic exercise on resting state functional brain activity in pediatric concussion
The Concussion, Exercise, and Brain Networks (ConExNet) study: a cohort study aimed at understanding the effects of sub-maximal aerobic exercise on resting state functional brain activity in pediatric concussion Open
Background Recent scientific evidence has challenged the traditional “rest-is-best” approach for concussion management. It is now thought that “exercise-is-medicine” for concussion, owing to dozens of studies which demonstrate that sub-max…
View article: The Concussion, Exercise, and Brain Networks (ConExNet) study: A cohort study aimed at understanding the effects of sub-maximal aerobic exercise on resting state functional brain activity in pediatric concussion.
The Concussion, Exercise, and Brain Networks (ConExNet) study: A cohort study aimed at understanding the effects of sub-maximal aerobic exercise on resting state functional brain activity in pediatric concussion. Open
Background Recent scientific evidence has challenged the traditional “rest-is-best” approach for concussion management. It is now thought that “exercise-is-medicine” for concussion, owing to dozens of studies which demonstrate that sub-max…
View article: A246 EXAMINING BARRIERS TO PHYSICAL ACTIVITY IN PEDIATRIC INFLAMMATORY BOWEL DISEASE PATIENTS
A246 EXAMINING BARRIERS TO PHYSICAL ACTIVITY IN PEDIATRIC INFLAMMATORY BOWEL DISEASE PATIENTS Open
Background Inflammatory bowel disease (IBD) poses significant challenges to pediatric patients, affecting their physical and psychological well-being. Physical activity can be an essential component of managing IBD, yet its adoption among …
View article: A web-based resource for exercise training in children treated for brain tumours to improve cognitive sequelae: Development and usability
A web-based resource for exercise training in children treated for brain tumours to improve cognitive sequelae: Development and usability Open
Improving cognitive sequelae in children treated for brain tumours (CTBT) requires accessible interventions. While instructor-led exercise in a hospital setting is efficacious, it is not extended to communities. Objectives We aimed to (i) …
View article: Reliability of field‐ and laboratory‐based assessments of health‐related fitness in preschool‐aged children
Reliability of field‐ and laboratory‐based assessments of health‐related fitness in preschool‐aged children Open
Objectives Reliable measurements of health‐related fitness—cardiorespiratory endurance, muscular endurance, muscular strength, body composition, and flexibility—are imperative for understanding and tracking health‐related fitness from the …
View article: Optimizing an exercise training program in pediatric brain tumour survivors: Does timing postradiotherapy matter?
Optimizing an exercise training program in pediatric brain tumour survivors: Does timing postradiotherapy matter? Open
Background While exercise training (ET) programs show positive outcomes in cognition, motor function, and physical fitness in pediatric brain tumor (PBT) survivors, little is known about the optimal timing of intervention. The aim of this …
View article: New Insights Into Accelerometer-Measured Habitual Physical Activity and Sedentary Time During Early Recovery in Pediatric Concussion
New Insights Into Accelerometer-Measured Habitual Physical Activity and Sedentary Time During Early Recovery in Pediatric Concussion Open
Purpose : Concussion management is shifting away from a rest-is-best approach, as data now suggest that exercise-is-medicine for this mild brain injury. Despite this, we have limited data on habitual physical activity following concussion.…
View article: Development and usability of a web-based resource for exercise training in children treated for brain tumours to improve cognitive sequelae (Preprint)
Development and usability of a web-based resource for exercise training in children treated for brain tumours to improve cognitive sequelae (Preprint) Open
BACKGROUND It is crucial to develop effective and accessible interventions to improve cognitive sequelae in children treated for brain tumours (CTBT), as their impact on functional outcomes is significant. Instructor-led exercise training…
View article: Sex-specific differences in resting-state functional brain activity in pediatric concussion
Sex-specific differences in resting-state functional brain activity in pediatric concussion Open
View article: Exploratory examination of the association between physical-mental multimorbidity and physical activity in children
Exploratory examination of the association between physical-mental multimorbidity and physical activity in children Open
Children with physical illnesses often experience co-occurring mental illness (known as multimorbidity; MM) and it is currently unknown if MM is associated with physical activity (PA) and if the association differs between internalizing an…
View article: A pilot study of exercise training for children and adolescents with inflammatory bowel disease: an evaluation of feasibility, safety, satisfaction, and efficacy
A pilot study of exercise training for children and adolescents with inflammatory bowel disease: an evaluation of feasibility, safety, satisfaction, and efficacy Open
Background Children with inflammatory bowel disease (IBD) experience extra-intestinal side effects including altered body composition, impaired muscle strength and aerobic capacity. Exercise training may remedy these issues. Purpose To ass…
View article: Top 10 International Priorities for Physical Fitness Research and Surveillance Among Children and Adolescents: A Twin-Panel Delphi Study
Top 10 International Priorities for Physical Fitness Research and Surveillance Among Children and Adolescents: A Twin-Panel Delphi Study Open
View article: Prevalence and Correlates of Physical-mental Multimorbidity in Outpatient Children From a Pediatric Hospital in Canada
Prevalence and Correlates of Physical-mental Multimorbidity in Outpatient Children From a Pediatric Hospital in Canada Open
Objective The aim of this study was to estimate the six-month prevalence of mental illness in children with chronic physical illness (multimorbidity), examine agreement between parent and child reports of multimorbidity, and identify facto…
View article: Correlates of Moderate-to-Vigorous Physical Activity in Children With Physical Illness and Physical–Mental Multimorbidity
Correlates of Moderate-to-Vigorous Physical Activity in Children With Physical Illness and Physical–Mental Multimorbidity Open
This study measured physical activity (PA) and explored its correlates among children with multimorbidity (co-occurring chronic physical and mental illness; MM) versus those with chronic physical illness only (PI). This study used baseline…
View article: Associations Between Fitness, Physical Activity, and Fatness in Preschool Children With Typical and Atypical Motor Coordination
Associations Between Fitness, Physical Activity, and Fatness in Preschool Children With Typical and Atypical Motor Coordination Open
Purpose Increased adiposity in children confers a higher risk of cardiovascular disease in later life, with low cardiorespiratory fitness strongly linked to poorer metabolic health. Children with motor coordination problems are likely to b…
View article: Training Pre-Service Early Childhood Educators in Physical Activity (TEACH): Protocol for a Quasi-Experimental Study
Training Pre-Service Early Childhood Educators in Physical Activity (TEACH): Protocol for a Quasi-Experimental Study Open
Background: Early childhood educators (ECEs) influence young children’s early uptake of positive health behaviours in childcare settings and serve as important daytime role models. As such, it is imperative that post-secondary early childh…
View article: Implementation of an e-Learning course in physical activity and sedentary behavior for pre- and in-service early childhood educators: Evaluation of the TEACH pilot study
Implementation of an e-Learning course in physical activity and sedentary behavior for pre- and in-service early childhood educators: Evaluation of the TEACH pilot study Open
View article: Preschool to School-Age Physical Activity Trajectories and School-Age Physical Literacy: A Longitudinal Analysis
Preschool to School-Age Physical Activity Trajectories and School-Age Physical Literacy: A Longitudinal Analysis Open
Purpose: The associations between longitudinal physical activity (PA) patterns across childhood and physical literacy have not been studied. The purpose of this study was to identify PA trajectories from preschool to school-age, and to det…
View article: Change in pre- and in-service early childhood educators’ knowledge, self-efficacy, and intentions following an e-learning course in physical activity and sedentary behaviour: a pilot study
Change in pre- and in-service early childhood educators’ knowledge, self-efficacy, and intentions following an e-learning course in physical activity and sedentary behaviour: a pilot study Open
View article: Trends in physical fitness among Canadian adults, 2007 to 2017
Trends in physical fitness among Canadian adults, 2007 to 2017 Open
The fitness levels of Canadian adults declined substantially between 1981 and the years 2007 to 2009, suggesting a reduction in population health. This paper updates the fitness trends of Canadians aged 20 to 69 years by extending the time…
View article: Accelerometer-measured habitual physical activity and sedentary time in pediatric concussion: A controlled cohort study
Accelerometer-measured habitual physical activity and sedentary time in pediatric concussion: A controlled cohort study Open
Objectives To characterize and quantify differences in accelerometer-measured physical activity and sedentary time between children with concussion (within the first month of injury) and 1:1 matched healthy controls. Methods Secondary anal…