Oxygen-uptake efficiency slope in healthy 7- to 18-year-old children.
The aim of this article was to assess the oxygen-uptake efficiency slope (OUES) throughout the age span of 7 to 18 years. One hundred fourteen healthy children (58 boys and 56 girls) exercised on a treadmill by means of a modified Balke protocol. The OUES grew in a nonlinear pattern with age, and it appeared to be significantly higher in boys than in girls. There was a very strong correlation between OUES and VO2peak (r = .92), and there was a small difference between the values of OUES calculated for different exercise intensities. Stepwise-regression analysis outlined body surface area (BSA) and sex as main determinants of OUES. OUES is an objective measure of exercise capacity that does not require a maximal effort but is considerably dependent on anthropometric variables and necessitates the generation of appropriate reference values.
Marinov
Blagoi
B
Department of Pathophysiology, Medical University of Plovdiv, 4002 Plovdiv Bulgaria.
Mandadzhieva
Stoilka
S
Kostianev
Stefan
S
D000293:Adolescent; D000367:Age Factors; D002648:Child; D003430:Cross-Sectional Studies; D005080:Exercise Test / Q000379:methods*; D005260:Female; D006801:Humans; D008297:Male; D010100:Oxygen / Q000378:metabolism*; D010101:Oxygen Consumption / Q000502:physiology*; D012044:Regression Analysis; D012737:Sex Factors
D010100:Oxygen