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J Sci Med Sport. 2019 Jan 10. pii: S1440-2440(18)31027-2. doi: 10.1016/j.jsams.2019.01.003. [Epub ahead of print]

Associations between meeting the Canadian 24-Hour Movement Guidelines for the Early Years and behavioral and emotional problems among 3-year-olds.

Author information

1
Faculty of Kinesiology, Sport, and Recreation, University of Alberta, Canada. Electronic address: vlcarson@ualberta.ca.
2
Faculty of Kinesiology, Sport, and Recreation, University of Alberta, Canada; Department of Pediatrics, Faculty of Medicine & Dentistry, University of Alberta, Canada.
3
Department of Pediatrics, Faculty of Medicine & Dentistry, University of Alberta, Canada.
4
Department of Medicine, Faculty of Health Sciences, McMaster University, Canada.
5
Department of Pediatrics & Child Health, Children's Hospital Research Institute of Manitoba, University of Manitoba, Canada.
6
Department of Pediatrics, Hospital for Sick Children, University of Toronto, Canada.
7
Department of Pediatrics, BC Children's Hospital, University of British Columbia, Canada.

Abstract

OBJECTIVES:

Primary: examine associations between meeting the 24-Hour Movement Guidelines for the Early Years and behavioral and emotional problems in a large sample of 3-year-old children. Secondary: determine the proportion of children meeting the Canadian 24-Hour Movement Guidelines.

DESIGN:

Cross-sectional.

METHODS:

Participants were 3-year olds (n=539) from the Edmonton site of the Canadian Healthy Infant Longitudinal Development (CHILD) birth cohort. Physical activity and sleep duration were accelerometer-derived while screen time was parent-reported. Meeting the overall guidelines was defined as: (1) ≥180min/day of total physical activity, including 60min/day of moderate- to vigorous-intensity physical activity, (2) ≤1h/day of screen time, and (3) 10-13h of sleep per 24-hour period. Externalizing, internalizing, and total problem scores (lower scores representing fewer problems) were calculated from the parent-reported Child Behavior Checklist (CBCL). Descriptive statistics and linear regression models were completed.

RESULTS:

Only 5% of children met the overall guidelines (all three recommendations), with 19.3%, 50.5%, and 83.1% meeting the physical activity, screen time, and sleep recommendations, respectively. Meeting more recommendations was associated with lower scores for total (B=-1.78, 95%CI: -3.03, -0.54), externalizing (B=-1.51, 95%CI: -2.80, -0.22) and internalizing (B=-1.35, 95%CI: -2.60, -0.01) problems. Similar findings were also observed for the specific combinations of: (1) physical activity and screen time and (2) sleep duration and screen time.

CONCLUSIONS:

Meeting more recommendations within the 24-hour Movement Guidelines was associated with fewer behavioral and emotional problems at 3-years. Few 3-year-olds met the overall guidelines. Findings support an integrated approach for healthy growth and development.

KEYWORDS:

Child development; Exercise; Fitness trackers; Guideline; Sleep; Television

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