Table 2.
Group mean values for total inspiratory muscle work completed and time to task failure during the IMF trials preceding each of the four protocols (mean ±s.d.)
| Protocol | Inspiratory muscle work (cmH2O l) | Time to task failure (min) |
|---|---|---|
| IMF + PF | 1786 ± 566 | 5.60 ± 1.39 |
| (944–2541) | (3.52–8.56) | |
| IMFrest + PF | 1821 ± 629 | 5.22 ± 1.39 |
| (1255–2898) | (3.25–7.34) | |
| IMFpre + PF | 1719 ± 402 | 5.25 ± 1.08 |
| (1065–2232) | (3.25–7.00) | |
| IMFpost+ PF | 2172 ± 1783 | 4.74 ± 1.46 |
| (918–6347) | (2.38–7.22) |
n = 8 except IMFrest + PF where n = 6. Range in parentheses. During the IMFpre + PF protocol, the IMF load was equivalent to 60% of the pre-IMT MIP, which equated to 50% of the post-IMT MIP. During the IMFpost+ PF protocol, IMF load was equivalent to 60% of the post-IMT MIP.