Cardiovascular and metabolic risk markers are related to parasympathetic indices in pre-pubertal adolescents.

Objective: To analyse the relationship between different heart rate variability indices, resting heart rate, and cardiovascular markers in adolescents.

Methods: A cross-sectional study was carried out with information from an ongoing cohort study. The sample was composed of 99 adolescents who complied with the following inclusion criteria: aged between 11 and 14 years; enrolled in a school unit of elementary education; absence of any known diseases; no drug consumption; and a formal consent signed by the parents or legal guardians.