VO₂max and VO₂ kinetics are unchanged following inspiratory muscle training where time to exhaustion is improved

It has been proposed that inspiratory muscle training (IMT) has a positive effect on endurance exercise performance (Volianitis et aJ. 2000). however, this observation appears controversial (Inbar et ai, 2000). Both V0₂ max and V0₂ kinetics are known to improve in response to endurance training and increasing evidence suggests that the two measurements reflect central and peripheral cardiovascular adaptations. The aim of this study is, therefore, to investigate whether a functional change occurs in aerobic fitness as assessed by both V0₂max and V0₂ kinetics following IMT