Table 3.
Peak Parameters Of The Constant Work Rate Exercise Test After 12 Weeks Of Acupuncture Treatment And Follow-Up Data
| Week 0 (n=16) | Week 12 (n=16) | Week 16 (n=14) | Week 24 (n=13) | p-Value (F-Value)a | |
|---|---|---|---|---|---|
| Endurance time, s | 810 (470) | 1125 (657)*** | 1068 (714) | 1046 (691) | 0.001 (7.121) |
 O2, mL ⋅ kg−1 ⋅ min−1
|
13.8 (2.8) | 12.9 (2.3)* | 13.2 (2.7) | 13.6 (3.1) | 0.038 (3.079) |
 O2, mL ⋅ min−1
|
822 (176) | 771 (149)* | 772 (162) | 807 (182) | 0.045 (2.924) |
 CO2, mL ⋅ min−1
|
798 (170) | 753 (136) | 759 (149) | 768 (175) | 0.174 (1.739) |
| Dyspnoea, Borg scale | 6.2 (1.9) | 6.2 (2.5) | 5.9 (2.8) | 6.5 (2.4) | 0.451 (0.897) |
| Leg fatigue, Borg scale | 5.5 (2.4) | 5.3 (2.8) | 5.4 (3.1) | 5.3 (3.3) | 0.977 (0.068) |
 Te, L |
1.30 (0.31) | 1.20 (0.27)** | 1.22 (0.30) | 1.23 (0.30) | 0.014 (4.021) |
 Ti -  Te, mL |
22.3 (14.9) | 8.1 (26.5) | 5.4 (29.4) | 14.9 (19.8) | 0.159 (1.823) |
| fR, breaths ⋅ min−1 | 28.1 (5.7) | 30.4 (6.3)* | 28.3 (5.1) | 28.4 (4.3) | 0.049 (2.865) |
 E, L ⋅ min−1
|
35.7 (8.1) | 34.7 (6.0) | 33.8 (7.4) | 34.4 (8.7) | 0.589 (0.648) |
 D/ T
|
0.37 (0.04) | 0.38 (0.05) | 0.37 (0.04) | 0.37 (0.04) | 0.372 (1.071) |
 E/ O2
|
43.7 (6.4) | 45.9 (8.1) | 44.4 (8.4) | 43.4 (8.7) | 0.061 (2.660) |
 E/ CO2
|
44.9 (5.8) | 46.7 (6.8) | 45.0 (7.0) | 45.4 (8.0) | 0.189 (1.669) |
| HR, beats ⋅ min−1 | 121 (12) | 123 (14) | 124 (11) | 123 (11) | 0.592 (0.749) |
| SpO2, % | 91.6 (4.1) | 90.9 (4.8) | 90.1 (4.9) | 88.9 (4.7) | 0.023 (3.556) |
| DFO2, % | 2.83 (0.39) | 2.69 (0.42)* | 2.80 (0.48) | 2.87 (0.59) | 0.100 (2.226) |
| PETCO2, mmHg | 34.1 (4.7) | 33.6 (5.2) | 34.5 (5.4) | 34.1 (6.2) | 0.288 (1.298) |
| FeCO2, % | 3.01 (0.39) | 2.91 (0.40) | 3.02 (0.43) | 2.98 (0.49) | 0.191 (1.661) |
Notes: ATS/ERS Statement on respiratory muscle testing. Am J Respir Crit Care Med Data are presented as the mean (standard deviation). Treatment effect: mean difference from pre-treatment; *P < 0.05, **P < 0.01, ***P < 0.001: pre-treatment vs 12 weeks, paired t-test. aTime course effect of 12-week acupuncture treatment by one-way repeated measures analysis of variance.
Abbreviations: DFO2, difference between fractional content of inspired oxygen and fractional content of expired oxygen; FeCO2, fractional content of expired carbon dioxide; fR, breathing frequency; HR, heart rate; PETCO2, end-tidal partial pressure of CO2; SpO2, saturation pulse oxygenation; 
D/
T, dead space/tidal volume ratio; 
E, minute ventilation; 
CO2, CO2 output; 
O2, oxygen uptake; 
T, tidal volume; 
Ti - 
Te, inspiratory tidal volume - expiratory tidal volume.