Table 3. Metabolic and cardiac responses of the participants for each completed stage. Values are the 6 min averages of each stage and given as the mean ± SEM.
Stage (speed, km/h) |
V̇O2 (mL/min) |
V̇CO2 (mL/min) |
Respiratory exchange ratio |
Heart rate (bpm) |
1 (4 km/h) |
1039.83 ± 26.55 |
853.98 ± 21.32 |
0.82 ± 0.01 |
102 ± 2 |
2 (5 km/h) |
1175.24 ± 30.21 |
1002.55 ± 25.77 |
0.85 ± 0.01 |
107 ± 2 |
3 (6 km/h) |
1459.99 ± 40.34 |
1314.61 ± 39.91 |
0.90 ± 0.01 |
120 ± 2 |
4 (7 km/h) |
1917.92 ± 54.03 |
1876.26 ± 57.79 |
0.98 ± 0.01 |
144 ± 2 |
5 (8 km/h) |
2225.47 ± 63.09 |
2216.75 ± 64.59 |
1.00 ± 0.01 |
158 ± 3 |
6 (9 km/h) |
2916.8 |
2881.3 |
0.99 |
194 |