Investigating the Compliance With the 24-h Movement Behaviours Guidelines in Preschoolers: Insights From the SUNRISE Pilot Study in Portugal.

Overall compliance with all WHO 24-h movement behaviour guidelines was low, at approximately 31-34% depending on sleep measurement method.

• Compliance was 33.8% when using parent-reported sleep data and 31.2% when using device-based sleep measurements.
• 77 children out of 115 recruited provided valid accelerometer data.
• Children were 3- to 4-years-old recruited from three urban and three rural public early childcare and education centres in Portugal.

Physical activity had the lowest compliance rate among the individual WHO guideline components.

• Only 53.3% of children met the physical activity recommendation.
• Physical activity was objectively measured using accelerometers wGT3X.
• This was the lowest compliance rate observed among all individual guideline components.

Parent-reported sleep time showed the highest compliance rate among individual guideline components.

• 89.7% of children met the sleep duration recommendation based on parent-reported data.
• Compliance with sleep was slightly higher when using parent-reported data compared to device-based measurements.
• Sleep patterns were assessed via parent questionnaire.

Screen time compliance was intermediate, with approximately two-thirds of children meeting the recommendation.

• 66.3% of children complied with screen time recommendations.
• Screen time data were obtained through parent-reported questionnaire responses.
• Screen time compliance fell between the physical activity (53.3%) and parent-reported sleep (89.7%) compliance rates.

No child was classified as non-compliant with the restrained time recommendation.

• When considering the restrained time recommendation, no child was classified as non-compliant.
• This finding indicates that the restrained time guideline had 100% compliance in this sample.
• Inclusion or exclusion of the restrained time recommendation affected overall compliance categorization.

The SUNRISE protocol demonstrated feasibility for implementation in Portugal, with consistently high response rates across all measures.

• Response rates exceeded 70% across all measures.
• 115 preschool children were recruited for the study.
• Assessments included anthropometrics, gross and fine motor skills, physical fitness, and executive functions.
• Valuable lessons were learned regarding response rates for both accelerometer data and the parent questionnaire.

The method used to assess sleep duration affects compliance classification with WHO guidelines.

• Overall compliance differed between parent-reported sleep (33.8%) and device-based sleep measurement (31.2%).
• Individual sleep compliance was highest when using parent-reported data (89.7%).
• The paper concludes that 'compliance with the WHO guidelines among Portuguese children varies depending on the protocol used to assess sleep duration and the inclusion or not of the restrained time recommendation.'