Table 2 Effect of IMT on oxygen consumption and respiratory quotient (first session)
|  | Baseline N = 26 | 4 cmH2O N = 26 | 30% NIF N = 26 | 50% NIF N = 24 | 80% NIF N = 19 | p value |
|---|---|---|---|---|---|---|
VO2 (ml/min) | 276 (86) | 321 (93) | 333 (92) | 351 (101) | 388 (98) | 0.003 |
VO2 (ml/kg/min) | 3.3 (0.8) | 3.8 (0.8) | 3.9 (0.8) | 4.1 (0.9) | 4.7 (0.8) | < 0.001 |
Respiratory quotient | 0.85 (0.06) | 0.82 (0.56) | 0.82 (0.05) | 0.81 (0.07) | 0.82 (0.09) | 0.305 |