" phenomenon can explain the variation in HR, SBP, and DBP reported in our result.
This physiologic augmentation is a phenomenon known as the cardiovascular drift
(1998) Cardiovascular drift
during prolonged exercise and the effects of dehydratation.
and critical core temperature: factors limiting endurance performance in the heat?
O aumento no V[O.sub.2] parece ser concomitante a uma diminuicao no volume sistolico e aumento compensatorio na FC, com pouca variacao do debito cardiaco, o que e conhecido como cardiovascular drift
. (27) Durante o exercicio prolongado, o aumento da temperatura corporal e hidratacao reduzida podem contribuir para uma diminuicao da pressao de enchimento e volume diastolico final, promovendo uma taquicardia ligeiramente maior (28) e, provavelmente, uma dissociacao entre os %FCR e %V[O.sub.2]R.
Vale a pena comentar tambem um fenomeno chamado cardiovascular drift
ou desvio cardiovascular (Nilsson e Simonsen, 2005).
The higher HR in W[B.sub.2] was attributed to the higher [T.sub.rec] and cardiovascular drift
Because thermoregulation impacts other areas of endurance performance, a secondary purpose of the study was to examine the effects of salt supplementation on cardiovascular drift
, perceived rating of exertion and time to exhaustion.
By limiting the total duration of exercise to approximately 12 min, we made an effort to minimize the effects of cardiovascular drift
Armstrong has shown that a 1% loss of body weight would have a meaningful decrease in performance, while Montain suggests that the optimal rate of fluid replacement to attenuate cardiovascular drift
is to match sweat loss (2, 12).
Thus, the cardiovascular drift
(Frangolias et al., 2000) associated with the longer exercise times in the training and competition situations could be partially responsible for higher maximal heart rates observed in these conditions.
The purpose of this study was to examine the role of active muscle mass on cardiovascular drift
([CV.sub.drift]) during prolonged exercise.