Should toddlers and preschoolers participate in organized sport? A scoping review of developmental outcomes associated with young children’s sport participation

ABSTRACT

Organized sport is offered at increasingly younger ages, with many programs geared towards preschoolers, toddlers, and infants. While sport is promoted as an amendable context for healthy development of school-age children, little is empirically known about potential benefits or risks associated with organized sport participation in early childhood. A scoping review of nine electronic databases identified English-language, peer-reviewed, original research articles which addressed psychological, emotional, social, cognitive, or intellectual developmental outcomes of organized sport involvement of children aged 2–5 years; included studies were appraised for quality. Findings offer preliminary evidence that early sport participation is related to primarily positive outcomes (e.g. enhanced social skills, pro-social behaviours, self-regulation), while negative and inconclusive outcomes were also identified. Results suggest limited existing research has primarily relied on parent or teacher proxy-report or assessment, and reinforces that little is known about toddler and preschooler organized sport participation as a distinct form of physical activity, despite pervasive availability of programming, and positive parental perceptions of early enrolment. Additional research with stronger methodological design and rigor is needed; recommendations to enhance the quality of future studies with young children are discussed.     

Accelerometer data requirements for reliable estimation of habitual physical activity and sedentary time of children during the early years - a worked example following a stepped approach

This study presents a worked example of a stepped process to reliably estimate the habitual physical activity and sedentary time of a sample of young children. A total of 299 children (2.9 ± 0.6 years) were recruited. Outcome variables were daily minutes of total physical activity, sedentary time, moderate to vigorous physical activity and proportional values of each variable. In total, 282 (94%) provided 3 h of accelerometer data on ≥1 day and were included in a 6-step process: Step-1: determine minimum wear-time; Step-2: process 7-day-data; Step-3: determine the inclusion of a weekend day; Step-4: examine day-to-day variability; Step-5: calculate single day intraclass correlation (ICC) (2,1); Step-6: calculate number of days required to reach reliability. Following the process the results were, Step-1: 6 h was estimated as minimum wear-time of a standard day. Step-2: 98 (32%) children had ≥6 h wear on 7 days. Step-3: no differences were found between weekdays and weekend days (P ≥ 0.05). Step-4: no differences were found between day-to-day variability (P ≥ 0.05). Step-5: single day ICC’s (2,1) ranged from 0.48 (total physical activity and sedentary time) to 0.53 (proportion of moderate to vigorous physical activity). Step-6: to reach reliability (ICC = 0.7), 3 days were required for all outcomes. In conclusion following a 7 day wear protocol, ≥6 h on any 3 days was found to have acceptable reliability. The stepped-process offers researchers a method to derive sample-specific wear-time criterion.