Table 2.: Exercise Parameters and Tests on Inspiratory Muscle Strength on Study Phase 1

  HEET 1 SB HEET 2
I II III IV V
TwPmo [kPa] 1.59 ± 0.31 1.04 ± 0.23 1.84 ± 0.65 1.66 ± 0.43 1.46 ± 0.57
TwPes [kPa] 1.38 ± 0.29 0.92 ± 0.19 1.58 ± 0.51 1.50 ± 0.41 1.37 ± 0.48
TwPga [kPa] -0.78 ± 0.30* -0.76 ± 0.23* -1.09 ± 0.49* -0.97 ± 0.34* -0.76 ± 0.39*
TwPdi [kPa] 2.10 ± 0.35* 1.58 ± 0.33* 2.59 ± 0.76* 2.36 ± 0.53* 2.09 ± 0.63*
PImax [kPa] 13.1 ± 1.5 13.2 ± 1.6 12.9 ± 1.4 12.4 ± 0.9 12.6 ± 1.7
HR [min-1] 71 ± 8 185 ± 10 76 ± 13 75 ± 11 185 ± 8
BL [mg/dl] 1.7 ± 0.5 12.2 ± 1.6 3.9 ± 1.3 2.0 ± 0.5 11.0 ± 2.3
PaO2 [mmHg] 88.3 ± 7.2 104.3 ± 10.2 85.8 ± 5.8 83.5 ± 5.3 101.6 ± 8.4
PaCO2 [mmHg] 36.0 ± 2.6 31.4 ± 1.6 31.9 ± 5.8 34.8 ± 2.9 31.2 ± 3.3
pH   7.41 ± 0.03 7.20 ± 0.06 7.41 ± 0.06 7.41 ± 0.02 7.22 ± 0.08

BL = blood lactate; HEET = heavy-intensity exercise testing; HR = heart rate; PaCO2 = partial pressure of carbon dioxide; PaO2 = partial pressure of oxygen; PImax = maximal inspiratory pressure; SB = spontaneous breathing; TwPdi = twitch transdiaphragmatic pressure; TwPes = twitch esophageal pressure; TwPga = twitch gastric pressure; TwPmo = twitch mouth pressure. *n=6.