Fig. 2From: Effect of altering breathing frequency on maximum voluntary ventilation in healthy adultsRelationship between the average tidal volume (VT) across subjects and the average maximum voluntary ventilation (MVV). VT and MVV values are presented as a percentage (%) of their respective maxima. A linear regression analysis revealed a significant decreasing trend for the preselected breathing frequencies (R2 = 0.846, P < 0.001)Back to article page