Stability of relative oxygen pulse curve during repeated maximal cardiopulmonary testing in professional soccer players

Cardiology in Brazilian scientific journals: an overview

“…Perim el al. [36] analyzed the stability of the O 2 pulse curve relative to body mass in elite athletes. VO 2 , heart rate (HR), and relative O 2 pulse were compared at every 10% of the running time in two maximal cardiopulmonary exercise tests, repeated within a one-year interval, in 49 soccer players.…”

Ponto ótimo cardiorrespiratório: uma variável submáxima do teste cardiopulmonar de exercício

“…During a maximum Cardiopulmonary Exercise Testing (CPET), different ventilatory data are obtained with clinical, diagnostic and/or prognostic implications 1 , such as maximum oxygen consumption (VO 2 max) -an objective measure of cardiorespiratory function 2,3 -the maximum oxygen pulse, both absolute and relative to body weight 4,5 , the anaerobic threshold (AT) 6 , the ventilatory equivalent for carbon dioxide (VE/VCO2) 7 and the curve generated by the oxygen uptake efficiency slope (OUES) 8 . However, there are several limitations with the measurement of these variables, such as low reproducibility 9 , different manners of calculation or identification 10 , and the fact that to obtain most of these, it is necessary to perform a truly maximum test 11,12 , which usually depends the motivations of the evaluator and the evaluated.…”

[ARTIGO RETRATADO] Exercício e suas interações com vários aspectos da vida do homem e dos animais

“…Two interesting papers by Perim et al 19 , 20 examined relative O 2 pulse curves in elite soccer players at maximal heart rate during treadmill cardiopulmonary exercise testing. They conclude that relative O 2 pulse curve slopes, which serve as an indirect and non-invasive surrogate for stroke volume, suggest that the stroke volume is similar in young and aerobically fit subjects regardless of the maximum heart rate reached.…”

“…The two papers by Perim et al 19 have been discussed: one compared relative O 2 pulse curves in 180 elite soccer players at their maximal heart rate during treadmill cardiopulmonary exercise testing and concludes that relative O 2 pulse curve slopes, which serve as an indirect and non-invasive surrogate for stroke volume, suggest that the stroke volume is similar in young and aerobically fit subjects regardless of the maximum heart rate reached. The second 20 analyzed the stability of the O 2 pulse curve relative to body mass in 49 elite soccer players and claims that in young healthy men in good to excellent aerobic condition, the morphology of the relative O 2 pulse curve is consistent up to close to the peak effort for a maximal cardiopulmonary exercise test repeated within a 1-year period. No increase in relative O 2 pulse at peak effort could represent a physiologic stroke volume limitation in these athletes.…”

“…Although the type of exercise did not influence the timing of breathing when dynamic arm and leg exercises are compared, it does influence time-domain ventilatory variability of young, healthy individuals. Perim et al 20 analyzed the stability of the O 2 pulse curve relative to body mass in 49 elite soccer players. O 2 consumption, heart rate (HR), and relative O 2 pulse were compared at every 10% of the running time in two maximal cardiopulmonary exercise tests and conclude that in young healthy men in good to excellent aerobic condition, the morphology of the relative O 2 pulse curve is consistent up to close to the peak effort for a maximal cardiopulmonary exercise tests repeated within a 1-year period.…”