Role of cardiorespiratory fitness and obesity on hemodynamic responses in children

C. D. Legantis, G. P. Nassis, K. Dipla, I. S. Vrabas, L. S. Sidossis, N. D. Geladas

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Aim. The purpose of this study was to examine the effects of cardiorespiratory fitness (CRF) and obesity on arterial blood pressure and its determinants at rest and during isometric handgrip exercise (IHG) in children. Methods. Fourty-eight healthy children aged 11.6±0.3 (mean ±SE) years, (24 obese or overweight [OB/OV]; 24 normal weight [NO]) participated in the study. Both groups were divided into fit or unfit subgroups according to children's performance of an exercise test (PWC 170). Arterial pressure and its determinants were recorded with the use of a photoplethysmographic device (FINOMETER) during 5 minutes of rest and 3 minutes of IHG at 30% of maximum voluntary contraction. Results. At rest and during IHG, unfit OB/OV children had higher systolic, mean arterial pressure, and rate pressure product (P≤0.05) than fit OB/OV children whose responses were similar to NO children, fit or unfit. Changes from rest, in cardiac output, cardiac index, and stroke volume were higher in unfit than in fit OB/OV children (P≤0.05). Unfit OB/ OV children exceeded their fit counterparts in several anthropometric measures. However, CRF was found to have a main effect on systolic blood pressure (P=0.05). Conclusion. Unfit versus fit OB/OV children had an exaggerated systolic blood pressure response at rest and during sympathetic activation, presumably coupled with higher cardiac output and cardiac oxygen demand. These results highlight the importance of fitness for health maintenance in obese and overweight children.

Original languageEnglish (US)
Pages (from-to)311-318
Number of pages8
JournalJournal of Sports Medicine and Physical Fitness
Volume52
Issue number3
StatePublished - Jun 2012
Externally publishedYes

Fingerprint

Obesity
Hemodynamics
Blood Pressure
Arterial Pressure
Exercise
High Cardiac Output
Cardiorespiratory Fitness
Cardiac Volume
Exercise Test
Cardiac Output
Stroke Volume
Oxygen
Pressure
Weights and Measures
Equipment and Supplies
Health

Keywords

  • Blood pressure
  • Child
  • Exercise
  • Fitness
  • Obesity

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine
  • Physical Therapy, Sports Therapy and Rehabilitation

Cite this

Legantis, C. D., Nassis, G. P., Dipla, K., Vrabas, I. S., Sidossis, L. S., & Geladas, N. D. (2012). Role of cardiorespiratory fitness and obesity on hemodynamic responses in children. Journal of Sports Medicine and Physical Fitness, 52(3), 311-318.

Role of cardiorespiratory fitness and obesity on hemodynamic responses in children. / Legantis, C. D.; Nassis, G. P.; Dipla, K.; Vrabas, I. S.; Sidossis, L. S.; Geladas, N. D.

In: Journal of Sports Medicine and Physical Fitness, Vol. 52, No. 3, 06.2012, p. 311-318.

Research output: Contribution to journalArticle

Legantis, CD, Nassis, GP, Dipla, K, Vrabas, IS, Sidossis, LS & Geladas, ND 2012, 'Role of cardiorespiratory fitness and obesity on hemodynamic responses in children', Journal of Sports Medicine and Physical Fitness, vol. 52, no. 3, pp. 311-318.
Legantis CD, Nassis GP, Dipla K, Vrabas IS, Sidossis LS, Geladas ND. Role of cardiorespiratory fitness and obesity on hemodynamic responses in children. Journal of Sports Medicine and Physical Fitness. 2012 Jun;52(3):311-318.
Legantis, C. D. ; Nassis, G. P. ; Dipla, K. ; Vrabas, I. S. ; Sidossis, L. S. ; Geladas, N. D. / Role of cardiorespiratory fitness and obesity on hemodynamic responses in children. In: Journal of Sports Medicine and Physical Fitness. 2012 ; Vol. 52, No. 3. pp. 311-318.
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