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Aerobic capacity related to cardiac size in young children.

Dencker, Magnus LU ; Wollmer, Per LU ; Karlsson, M K LU ; Andersen, L B and Thorsson, Ola LU (2013) In Journal of Sports Medicine and Physical Fitness 53(1). p.42-47
Abstract
Aim:Aerobic capacity, defined as peak oxygen uptake (VO2PEAK), is generally considered to be the best single marker for aerobic fitness. We assessed if VO2PEAK is related to different cardiac dimensions in healthy young children on a population base. Methods: In a cross-sectional study, 245 children (137 boys and 108 girls) aged 8-11 years, were recruited from a population based cohort. VO2PEAK (ml/min-1/kg-1) was assessed by indirect calorimetry during a maximal exercise test. DXA-scan was used to measure lean body mass (LBM) and total fat mass (TBF). Echocardiography, with 2-dimensional guided M-mode, was performed in accordance with current guidelines. Left ventricular end-diastolic diameter (LVDD) and left atrial end-systolic diameter... (More)
Aim:Aerobic capacity, defined as peak oxygen uptake (VO2PEAK), is generally considered to be the best single marker for aerobic fitness. We assessed if VO2PEAK is related to different cardiac dimensions in healthy young children on a population base. Methods: In a cross-sectional study, 245 children (137 boys and 108 girls) aged 8-11 years, were recruited from a population based cohort. VO2PEAK (ml/min-1/kg-1) was assessed by indirect calorimetry during a maximal exercise test. DXA-scan was used to measure lean body mass (LBM) and total fat mass (TBF). Echocardiography, with 2-dimensional guided M-mode, was performed in accordance with current guidelines. Left ventricular end-diastolic diameter (LVDD) and left atrial end-systolic diameter (LA) were measured, and left ventricular mass (LVM) was calculated. Results: Univariate correlations were found between VO2PEAK versus LVDD r=0.44 and LA r=0.27 (both P<0.05) and LVM r=-0.06 (NS) in boys. Corresponding values for girls were; 0.55, 0.34 (both P<0.05) and 0.11 (NS). Multiple regression analysis with VO2PEAK as dependent variable and inclusion of LBM, TBF, sex, age, Tanner stage, and maximal heart rate as independent variables showed that 67% of the total variance of VO2PEAK could be explained by these variables. Including LVDD or LA in the model, added 1% additional explained variance. Conclusion: Findings from this population based cohort of young healthy children show that multiple cardiac dimensions at rest are related to VO2PEAK. However, the different cardiac dimensions contributed very little to the added explained variance of VO2PEAK. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Sports Medicine and Physical Fitness
volume
53
issue
1
pages
42 - 47
publisher
Edizioni Minerva Medica
external identifiers
  • wos:000318194800006
  • pmid:23470910
  • scopus:84877619378
ISSN
0022-4707
language
English
LU publication?
yes
id
668edb32-7c93-47e1-bd08-bbcbafe8b76d (old id 3628441)
alternative location
http://www.ncbi.nlm.nih.gov/pubmed/23470910?dopt=Abstract
date added to LUP
2016-04-01 14:08:32
date last changed
2019-05-27 14:35:02
@article{668edb32-7c93-47e1-bd08-bbcbafe8b76d,
  abstract     = {Aim:Aerobic capacity, defined as peak oxygen uptake (VO2PEAK), is generally considered to be the best single marker for aerobic fitness. We assessed if VO2PEAK is related to different cardiac dimensions in healthy young children on a population base. Methods: In a cross-sectional study, 245 children (137 boys and 108 girls) aged 8-11 years, were recruited from a population based cohort. VO2PEAK (ml/min-1/kg-1) was assessed by indirect calorimetry during a maximal exercise test. DXA-scan was used to measure lean body mass (LBM) and total fat mass (TBF). Echocardiography, with 2-dimensional guided M-mode, was performed in accordance with current guidelines. Left ventricular end-diastolic diameter (LVDD) and left atrial end-systolic diameter (LA) were measured, and left ventricular mass (LVM) was calculated. Results: Univariate correlations were found between VO2PEAK versus LVDD r=0.44 and LA r=0.27 (both P&lt;0.05) and LVM r=-0.06 (NS) in boys. Corresponding values for girls were; 0.55, 0.34 (both P&lt;0.05) and 0.11 (NS). Multiple regression analysis with VO2PEAK as dependent variable and inclusion of LBM, TBF, sex, age, Tanner stage, and maximal heart rate as independent variables showed that 67% of the total variance of VO2PEAK could be explained by these variables. Including LVDD or LA in the model, added 1% additional explained variance. Conclusion: Findings from this population based cohort of young healthy children show that multiple cardiac dimensions at rest are related to VO2PEAK. However, the different cardiac dimensions contributed very little to the added explained variance of VO2PEAK.},
  author       = {Dencker, Magnus and Wollmer, Per and Karlsson, M K and Andersen, L B and Thorsson, Ola},
  issn         = {0022-4707},
  language     = {eng},
  number       = {1},
  pages        = {42--47},
  publisher    = {Edizioni Minerva Medica},
  series       = {Journal of Sports Medicine and Physical Fitness},
  title        = {Aerobic capacity related to cardiac size in young children.},
  url          = {http://www.ncbi.nlm.nih.gov/pubmed/23470910?dopt=Abstract},
  volume       = {53},
  year         = {2013},
}