Figure 2.

Example of oxygen uptake ($\dot{V}{\text{O}}_{\text{2}}$) kinetics determination in a representative subject at exercise onset (upper and mid panel) and during exercise recovery (lower panel). $\dot{V}{O}_2{\tau }_{\text{on}}$ MOD and $\dot{V}{O}_2{\tau }_{\text{on}}$ SEV are the time constants of the primary component of the pulmonary $\dot{V}{\text{O}}_{\text{2}}$ kinetics at exercise onset in the moderate and severe exercise intensity domain, respectively. $\dot{V}{O}_2{\tau }_{\text{off}}$ SEV is the time constants of the primary component of the pulmonary $\dot{V}{\text{O}}_{\text{2}}$ kinetics after exercise performed in the severe intensity domain. The bottom gray line in the upper and lower panels represents the residuals.