CPAP cmH2O | Seated | Supine | ||||
X̄insp | X̄exp | ΔX̄rs | X̄insp | X̄exp | ΔX̄rs | |
COPD | ||||||
0 | −3.70±1.96 | −6.30±2.86 | 2.60±3.04 | −4.42±1.54 | −9.56±4.32 | 5.14±3.13 |
Min.÷max. | −6.92÷ −1.36 | −9.01÷ −1.78 | −1.01÷5.5 | −5.86÷ −2.24 | −13.47÷ −3.39 | 1.15÷8.79 |
4 | −3.77±1.64 | −4.55±2.79 | 0.78±1.56 | −4.16±1.75 | −6.92±3.87 | 2.77±2.29 |
Min.÷max. | −5.19÷ −0.87 | −8.5÷ −0.42 | −0.96÷3.88 | −5.36÷ −1.55 | −10.63÷ −1.64 | 0.09÷5.27 |
8 | −3.71±2.03 | −4.21±2.19 | 0.51±0.92 | −3.62±1.74 | −4.99±2.57 | 1.37±1.10 |
Min.÷max. | −5.75÷ −1.09 | −7.27÷ −1.34 | −0.22÷1.47 | −5.67÷ −1.42 | −7.28÷ −1.44 | 0.02÷2.68 |
12 | −3.41±1.46 | −4.36±3.41 | 0.95±2.86 | −3.20±1.40 | −3.92±1.96 | 0.72±0.63 |
Min.÷max. | −5.6÷ −1.07 | −11.05÷ −0.76 | −1.05÷7.10 | −4.46÷ −1.26 | −5.89÷ −1.21 | −0.05÷1.43 |
Restricted | ||||||
0 | −5.66±3.72 | −4.66±0.58 | −0.89±3.56 | −4.13±5.51 | −3.31±3.50 | −0.39±5.31 |
Min.÷max. | −11.14÷ −3.09 | −5.39÷ −4.01 | −8.22÷1.05 | −12.02÷ −3.7 | −12.86÷ −2.71 | −8.26÷2.63 |
4 | −2.84±0.79 | −3.37±0.69 | 0.52±0.86 | −2.23±3.08 | −2.55±3.33 | 0.66±0.87 |
Min.÷max. | −3.52÷ −1.99 | −3.95÷ −2.57 | −0.5÷1.59 | −13.51÷ −1.95 | −12.61÷ −1.7 | −0.89÷1.59 |
8 | −3.81±1.42 | −3.66±0.87 | −0.15±0.60 | −3.02±3.23 | −2.75±3.23 | 0.20±0.82 |
Min.÷max. | −4.92÷ −1.79 | −4.37÷ −2.51 | −0.64÷0.72 | −12÷ −1.73 | −9.57÷ −1.77 | −2.43÷0.04 |
12 | −3.32±0.75 | −3.15±1.13 | −0.16±0.60 | −2.12±3.21 | −2.54±3.19 | 0.78±1.17 |
Min.÷max. | −3.91÷ −2.28 | −4.55÷ −1.79 | −0.6÷0.71 | −12÷ −1.26 | −8.78÷ −0.84 | −3.22÷0.71 |
Data are presented as mean±sd in cmH2O·s·L−1, unless otherwise stated. Min.: minimum; max.: maximum.