Heart rate variability, blood lipids and physical capacity of obese and non-obese children.

Background: Obesity can affect the cardiac autonomic modulation, blood lipid levels and the physical capacity.

Objective: To study the effect of obesity on the heart rate variability (HRV), blood lipid levels and physical capacity of obese children.

Methods: Thirty children aged 9 to 11 years were studied, divided in two groups: a) 15 obese children (O) aged 10.