Association Between Adherence to 24-Hour Movement Behavior Guidelines and Cardiovascular Risk Factors in Adolescents

Area of Science:

• Public Health
• Adolescent Health
• Cardiovascular Health

Background:

• Cardiovascular risk factors (CVRF) are a growing concern in adolescents.
• Understanding the role of 24-hour movement behaviors (24-HMB) is crucial for prevention.

Purpose of the Study:

• To analyze the associations between adherence to 24-HMB (physical activity, sedentary behavior, sleep) and CVRF in Brazilian adolescents.
• To explore sex-specific differences in these associations.

Main Methods:

• Cross-sectional study design.
• Measured moderate-to-vigorous physical activity (MVPA) using accelerometers.
• Assessed sedentary behavior and sleep via self-report.
• Analyzed associations with BMI, blood pressure, and cardiorespiratory fitness (CRF) using sex-stratified linear regression.

Main Results:

• In boys, MVPA adherence was linked to higher CRF and lower BMI and CVRF score.
• In girls, meeting MVPA and sleep recommendations was associated with higher CRF.
• Overall adherence to MVPA and sleep recommendations inversely correlated with CVRF score.
• Greater adherence to 24-HMB recommendations was associated with lower BMI and higher CRF.

Conclusions:

• Adherence to 24-HMB shows beneficial associations with adiposity and CRF in adolescents.
• These associations vary between sexes, highlighting the need for tailored interventions.
• Promoting physical activity and adequate sleep is vital for adolescent cardiovascular health.