Figure 2.
Effect of breathing techniques on estimated chemoreflex sensitivity values (*P < 0.05; **P < 0.01; ***P < 0.001, versus spontaneous breathing; ¶¶¶ P < 0.001, versus 6/min (3 s inspiration + 7 s expiration)).
Effect of breathing techniques on estimated chemoreflex sensitivity values (*P < 0.05; **P < 0.01; ***P < 0.001, versus spontaneous breathing; ¶¶¶ P < 0.001, versus 6/min (3 s inspiration + 7 s expiration)).