Higher Sedentary Behaviour and Not Following Screen Time Guidelines Were Associated With Unfavourable Cardiometabolic...

Area of Science:

• Pediatric health
• Cardiometabolic risk factors
• Childhood obesity and sedentary behavior

Background:

• Sedentary behavior's impact on children's cardiometabolic health is not fully understood.
• Limited evidence exists on the long-term effects of sedentary behavior from early childhood to later childhood.

Purpose of the Study:

• To investigate associations between sedentary behavior and cardiometabolic outcomes in children aged 4 to 9 years.
• To examine the relationship between adherence to screen time guidelines and cardiometabolic health at age 9.

Main Methods:

• Utilized accelerometers to measure movement behaviors in 411 children at ages 4 and 9.
• Assessed cardiometabolic outcomes including blood pressure, lipid and glucose biomarkers, and metabolic syndrome score at age 9.
• Employed compositional data analysis and analysis of covariance for data interpretation.

Main Results:

• Higher sedentary behavior at age 9, at the expense of physical activity and sleep, correlated with elevated systolic and diastolic blood pressure.
• Greater sedentary behavior at age 4 was associated with higher diastolic blood pressure and lower high-density lipoprotein at age 9.
• Children adhering to screen time guidelines exhibited a lower metabolic syndrome score, reduced low-density lipoprotein, and lower triglycerides.

Conclusions:

• Elevated sedentary behavior and non-adherence to screen time guidelines are linked to adverse cardiometabolic outcomes in children.
• These associations were observed from early childhood (age 4) through later childhood (age 9).
• Findings highlight the importance of limiting sedentary time for maintaining children's cardiometabolic health.