Fig. 4.
A: individual relationship between total diaphragmatic force output and the decrease of transdiaphragmatic twitch pressure (Pdi,tw). Each participant represents one symbol linked three times, which corresponds to 50, 75, and 100% of time-to-exhaustion (TTE). B: correlation of this relationship from 50 (open circles), 75 (half-open circles), and 100% (closed circles) TTE trials. The dashed horizontal lines in both panels represents the criterion used to consider diaphragmatic fatigue present (≥20% reduction in Pdi,tw).