Table 1 Ventilatory parameters. Data are means (±).
|
Peak power |
|
M |
F1 |
F2 |
| Power (W) |
240 (75) |
243 (77) |
253 (82) |
| VO2peak (mL.kg-1.min-1) |
42.0 (9.9) |
42.3 (9.0) |
42.8 (9.3) |
| VEpeak (L.min-1) |
79.1 (20.2) * |
87.1 (24.5) |
87.2 (25.0) |
| Vtpeak (L) |
2.712 (.559) |
2.687 (.571) |
2.656 (.570) |
| RRpeak (breaths.min-1) |
38 (7) * |
41 (7) |
41 (8) |
| Exercise time (min) |
10.32 (2.59) |
10.58 (2.35) |
10.74 (2.52) |
| HR (beats.min-1) |
172 (16) |
176 (16) |
175 (16) |
| RER |
1.24 (.13) |
1.29 (.25) |
1.26 (.12) |
|
75% peak power |
| Power (W) |
169 (49) |
175 (53) |
173 (53) |
| VO2 (mL.kg-1.min-1) |
31.4 (7.0) |
32.0 (7.5) |
31.9 (7.4) |
| VE (L.min-1) |
49.2 (11.5) |
51.7 (13.8) |
51.5 (14.7) |
| Vt (L) |
2.333 (.505) |
2.363 (.493) |
2.295 (.506) |
| RR (breaths.min-1) |
27 (7) |
28 (7) |
29 (7) |
| Exercise time (min) |
7.83 (1.92) |
8.01 (1.90) |
8.06 (2.06) |
| HR (beats.min-1) |
151 (16) |
156 (15) |
155 (18) |
| RER |
1.10 (.10) |
1.14 (.17) |
1.11 (.09) |
|
25% peak power |
| Power (W) |
63 (43) |
67 (45) |
66 (44) |
| VO2 (mL.kg-1.min-1) |
15.6 (5.5) |
15.5 (5.2) |
15.5 (5.0) |
| VE (L.min-1) |
22.6 (8.7) |
21.9 (8.5) |
22.3 (7.9) |
| Vt (L) |
1.416 (.549) |
1.470 (.553) |
1.468 (.504) |
| RR (breaths.min-1) |
21 (5) |
20 (4) |
20 (4) |
| Exercise time (min) |
4.00 (2.12) |
3.95 (2.14) |
4.17 (2.23) |
| HR (beats.min-1) |
107 (12) |
109 (14) |
111 (16) |
| RER |
.91 (.09) |
.89 (.09) |
.91 (.08) |
M: mouthpieceF1: first facemask trialF2: second facemask trialVt: tidal volumeHR: heart rateRER: respiratory exchange ratio* denotes a significant difference from F1 and F2.
