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. 2018 Nov 14;9:1618. doi: 10.3389/fphys.2018.01618

FIGURE 4.

FIGURE 4

Effects of abdominal binding (AB) vs. control (CTRL) on (A) ventilation, (B) inspiratory capacity, (C) tidal volume, (D) inspiratory reserve volume, (E) breathing frequency, and (F) peak expiratory flow during constant-load cycle endurance exercise testing at 75% of peak incremental power output in adults with chronic obstructive pulmonary disease (n = 20). Pes, esophageal pressure. Data points are mean ± SEM values at rest, at standardized submaximal times during exercise (including isotime of 5.1 ± 1.0 min), and at peak exercise. p < 0.05 vs. CTRL.