Article

A reference set of data of normal values of newly developed
cardiopulmonary parameters of exercise testing in an 8-18-year-old population is
lacking. METHODS: Cardiopulmonary exercise testing was performed in
175 healthy school children (8-18 years old). Continuous electrocardiography was
performed, and minute ventilation, oxygen uptake (VO2), and carbon dioxide (CO2)
production were measured continuously with a respiratory gas analysis system.
RESULTS: Peak VO2/kg did not change with age, whereas the ventilation to carbon
dioxide exhalation slope was lower in the older children. The decline in heart
rate during recovery was much faster in the youngest children. Linear regression
analysis showed a significant effect of age on: peak work rate (WRpeak) and
WRpeak/kg, ventilation to carbon dioxide exhalation slope, heart rate recovery,
and VO2peak (boys only) (All P < 0.001). The DeltaVO2/DeltaWR slope remained
constant throughout all age groups. CONCLUSION: This study comprehensively
provides a reference set of data for the most important cardiopulmonary variables
that can be obtained during exercise testing in children

Langue : ANGLAIS

Tiré à part : OUI