Table 6.
Effects of IMT on Lung Function
| Parameter | Before IMT, Mean±SD | After IMT, Mean±SD | P Value | Changea |
|---|---|---|---|---|
| FEV1, L | 2.9±0.7 | 2.7±0.7 | 0.48 | −0.04 (−0.02 to 0.10) |
| FVC, L | 3.3±0.8 | 3.3±0.8 | 0.10 | 0.07 (−0.02 to 0.16) |
| FEV1/FVC, % | 87.8±5.6 | 83.3±7.5 | 0.06 | −3.30 (−7.32 to 0.73) |
| IC (rest), L | 2.3±0.5 | 2.3±0.7 | 0.31 | −0.10 (−0.30 to 0.10) |
| Vd/Vt | 0.2±0.04 | 0.2±0.10 | 0.98 | −0.02 (−0.03 to 0.01) |
FEV1 indicates forced expiratory volume in 1 s; FVC, forced vital capacity; IC, inspiratory capacity; IMT, inspiratory muscle training; Vd/Vt, dead space/tidal volume ratio.
a
Calculated as post‐IMT values minus pre‐IMT values; expressed as mean change (95% confidence interval).