Fig. 3
From: Coupling of dyspnea perception and occurrence of tachypnea during exercise
Mean threshold values of 22 participants, with the threshold values of each individual (open circles). The threshold for Vt (T VT) was significantly higher than that for dyspnea VAS (T VAS) (P < 0.01, Dunnett’s multiple-comparison post hoc test with T VAS serving as a control). There were no significant differences between T VAS and T VCO2, T VAS and T VE, or T VAS and T fR. Values are mean ± SE (n = 22)