Pediatric Cardiology

, Volume 32, Issue 7, pp 924–928

Central Fat Influences Cardiac Autonomic Function in Obese and Overweight Girls

Authors

    • Research Centre in Physical Activity, Health and Leisure Faculty of SportUniversity of Porto
  • Alberto J. Alves
    • Research Centre in Physical Activity, Health and Leisure Faculty of SportUniversity of Porto
  • Susana Vale
    • Research Centre in Physical Activity, Health and Leisure Faculty of SportUniversity of Porto
  • Luisa Aires
    • Research Centre in Physical Activity, Health and Leisure Faculty of SportUniversity of Porto
  • Rute Santos
    • Research Centre in Physical Activity, Health and Leisure Faculty of SportUniversity of Porto
    • Maia Institute of Higher Education (CIDESD)
  • José Oliveira
    • Research Centre in Physical Activity, Health and Leisure Faculty of SportUniversity of Porto
  • Jorge Mota
    • Research Centre in Physical Activity, Health and Leisure Faculty of SportUniversity of Porto
Original Article

DOI: 10.1007/s00246-011-0015-8

Cite this article as:
Soares-Miranda, L., Alves, A.J., Vale, S. et al. Pediatr Cardiol (2011) 32: 924. doi:10.1007/s00246-011-0015-8

Abstract

It has been suggested that upper-body fat compared with lower-body fat is more closely associated with cardiovascular abnormalities. Our objective was to analyze the relationship between central fat (CF) and cardiac autonomic (cANS) function in obese and overweight girls. Children were classified in two groups based on CF: those above (CFa50) and those below the 50th percentile (CFb50) of the entire sample. This study included 16 female children who were diagnosed as being overweight or obese (age: 14.3 ± 2.8 years; weight: 75.0 ± 15.8 kg; height: 157.1 ± 8.9 cm; body mass index: 30.1 ± 5.4; and total body fat: 40.5 ± 5.0%; Tanner stage: 4). cANS function was assessed through heart rate variability (HRV) and CF parameters by dual-energy X-ray absorptiometry. Female children with higher CF exhibited significantly higher sympathetic and lower parasympathetic modulation than those with lower CF, independently of total body fat. The data of the present study indicate that CF is associated with less favorable indexes of HRV. In addition, our findings suggest that CF might be an important measure to assess the effect of obesity on cANS function in female children.

Keywords

Cardiac autonomic functionObesityOverweightCentral fatGirls

Copyright information

© Springer Science+Business Media, LLC 2011