Maternal Physical Activity and Neonatal Cord Blood Lipid Levels: Findings From a Prospective Pregnancy Cohort

Area of Science:

• Obstetrics and Gynecology
• Neonatal Health
• Cardiovascular Science

Background:

• Maternal physical activity benefits maternal cardiovascular health.
• The impact of maternal exercise on neonatal cardiovascular health is not well understood.
• This study examines the relationship between maternal physical activity and neonatal lipid profiles.

Purpose of the Study:

• To investigate the association between maternal physical activity levels during pregnancy and neonatal cord blood lipid and lipoprotein concentrations.
• To determine if maternal exercise influences specific lipid markers in newborns.
• To explore potential early markers for cardiovascular disease prevention in neonates.

Main Methods:

• A subgroup of 1634 participants from the Born in Bradford birth cohort had cord blood lipids measured at birth.
• Pregnant women were categorized into four activity groups (inactive, somewhat active, moderately active, active) based on self-reported activity at 26-28 weeks gestation.
• Adjusted regression analyses were used to compare neonatal lipid concentrations across maternal activity groups.

Main Results:

• Maternal physical activity was associated with elevated neonatal high-density lipoprotein cholesterol (HDL-C).
• Neonates born to somewhat and moderately active mothers had higher HDL-C compared to those born to inactive mothers.
• No significant associations were found between maternal physical activity and neonatal triglycerides, LDL-C, VLDL-C, or adiponectin levels.

Conclusions:

• Maternal physical activity during pregnancy is favorably associated with higher neonatal cord blood high-density lipoprotein cholesterol.
• This finding suggests a potential role for physical activity in pregnancy for the early prevention of cardiovascular disease in offspring.
• Encouraging maternal exercise may contribute to improved neonatal cardiovascular health markers.