Research Article
[Retracted] Analysis of Influencing Factors for Exercise Ventilation Efficiency of COPD Patients
Table 6
EqCO2, RR, and VE at different exercise intensities by the GOLD stage.
| | GOLD level 1 | GOLD level 2 | GOLD level 3 | GOLD level 4 | t value | value |
| Number of cases | 9 | 44 | 21 | 2 | | | EqCO2rest | 32.33 ± 1.75 | 35.83 ± 1.02 | 39.64 ± 1.67 | 36.3 ± 2.26 | −9.63 | 0.00 | EqCO2at | 29.46 ± 1.49 | 33.62 ± 0.87 | 35.58 ± 1.46 | / | −5.68 | 0.00 | EqCO2max | 29.72 ± 1.32 | 32.99 ± 0.94 | 33.21 ± 1.39 | 29.05 ± 0.21 | −0.657 | 0.51 | RRrest | 18.85 ± 5.31 | 21.95 ± 4.41 | 22.25 ± 5.94 | 23.5 ± 0.71 | −0.38 | 0.71 | RRat | 24.86 ± 5.40 | 23.58 ± 3.66 | 26.70 ± 5.27 | / | −2.26 | 0.03 | RRmax | 34.22 ± 7.43 | 31.05 ± 4.46 | 31.65 ± 6.02 | 30.0 ± 1.41 | −0.52 | 0.61 | % | 79.7% ± 18,26 | 76.77 ± 16.56 | 76.38 ± 15.00 | 72.5 ± 3.54 | 0.02 | 0.98 | VErest | 15.71 ± 5.50 | 20.38 ± 5.51 | 20.31 ± 4.42 | 23.0 ± 5.66 | 0,10 | 0,92 | VEat | 28.30 ± 9.57 | 28.05 ± 8.07 | 31.31 ± 6.20 | / | −1.32 | 0.19 | VEmax | 55.22 ± 9.24 | 48.61 ± 12.29 | 42.95 ± 10.09 | 32.5 ± 7.78 | 1.75 | 0.09 | % | 72.7 ± 14.97 | 60.15 ± 12.52 | 49.63 ± 10.76 | 36.5 ± 6.36 | 2.85 | 0.01 |
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significant difference, < 0.05. |