Ventilatory response during an incremental exercise test: A mode of testing effect

Abstract

Abstract This study compared ventilation patterns during incremental load tests to exhaustion. Ten endurance trained individuals and eight recreationally active trained individuals underwent a maximal oxygen uptake ( O 2max ) determination test on both a cycle (CE) and treadmill (TM) ergometer. Cardiorespiratory variables O 2 , CO 2 , RER, E , and R ), movement frequency (MF) and entrainment (ENT) were collected and calculated relative to fixed percentages of O 2max (isometabolic), ranging from 60 to 100%. Minute ventilation ( E ) was similar between groups on both ergometers. Concurrently, V T was significantly higher, while R was significantly lower on the CE compared to the TM in both groups ( P <0.05). At isometabolic intensities there were no difference in R or ENT between groups or mode of testing while the endurance trained group reached higher V T values on the CE. Although the endurance trained group reached higher cardiorespiratory values compared to the recreationally active trained group, their ventilatory patterns were similar between modes of testing. These results seem to be dependent on the exercise modality and not necessarily the type of training individuals regularly participate in.