SOT (n = 10) | HFNC (n = 10) | p value | |
---|---|---|---|
Tlim (s) | 381 (137) | 494 (173) | 0.013 |
O2 flow (l) | |||
Initial | 8 (2.8) | 40 (0) | < 0.01 |
End of test | 9.1 (4.1) | 45 (8.5) | < 0.01 |
VT (ml) | |||
Initial | 710 (174) | 646 (158) | 0.20 |
End of test | 1310 (466) | 1333 (518) | 1 |
Change (%)a | 89 (27) | 100 (54) | 1 |
RR (rpm) | |||
Initial | 27 (10) | 26 (8) | 0.16 |
End of test | 44 (11) | 43 (10) | 0.87 |
VE (%pred.) | |||
Initial | 27 (7) | 25 (8) | 0.17 |
End of test | 81 (15) | 78 (13) | 0.46 |
IC (l) | |||
Initial | 1.4 (0.5) | 1.4 (0.5) | 0.83 |
End of test | 1.5 (0.6) | 1.7 (0.6) | 0.53 |
Change (%)a | 7.1 (8.9) | 19.4 (14.2) | 0.04 |
HR (bpm) | |||
Initial | 84 (16) | 84 (16) | 0.76 |
End of test | 122 (17) | 123 (20) | 0.72 |
Isotime | 118 (15) | 118 (20) | 0.92 |
HR (%pred.) | |||
Initial | 56 (10) | 56 (11) | 0.80 |
End of test | 82 (10) | 82 (12) | 0.77 |
SpO2 (%) | |||
Initial | 97 (2) | 97 (1) | 0.72 |
End of test | 90 (4) | 90 (3) | 1 |
StO2 (%)b | |||
Initial | 45 (7.2) | 47.1 (9.3) | 0.35 |
End of test | 43.4 (9.6) | 47.2 (10.6) | 0.12 |
Borg scale | |||
Initial | |||
Dyspnea | 0.1 (0.3) | 0.2 (0.4) | 0.32 |
Leg fatigue | 0 (0) | 0.2 (0.6) | 0.32 |
End of test | |||
Dyspnea | 6.6 (1.8) | 6.7 (2.4) | 0.91 |
Leg fatigue | 5.1 (3.4) | 4.9 (3.1) | 0.83 |