Physical activity guidelines and preschooler's obesity status

Area of Science:

• Pediatrics
• Public Health
• Exercise Science

Background:

• Childhood obesity is a growing public health concern.
• Physical activity (PA) is crucial for counteracting obesity in children.
• Understanding PA compliance in preschoolers is vital for targeted interventions.

Purpose of the Study:

• To investigate the association between adherence to daily PA recommendations and the risk of overweight/obesity in preschool-aged children.
• To analyze compliance rates with different PA guidelines (total PA and moderate-to-vigorous PA).

Main Methods:

• A sample of 607 children aged 4-6 years from Porto, Portugal, was studied.
• Body Mass Index (BMI) was classified using International Obesity Task Force criteria.
• PA was measured over 7 days using accelerometers, assessing total PA (TPA) and moderate-to-vigorous PA (MVPA).

Main Results:

• Overweight and obesity prevalence was 23.5% (girls) and 17.2% (boys).
• High compliance rates were observed: 90.2% of girls and 96.2% of boys met MVPA recommendations; 97.3% of girls and 99.4% of boys met TPA recommendations.
• Not meeting MVPA guidelines was significantly associated with obesity in girls (OR: 3.8), but not in boys.

Conclusions:

• Over 90% of preschoolers met recommended PA guidelines.
• Low levels of MVPA are associated with higher obesity risk specifically in preschool-aged girls.
• Longitudinal studies are recommended to validate these associations and inform childhood obesity prevention strategies.