Figure 1.

An example of how the power was calculated for the constant power tests from the incremental treadmill (triangles) tests and cycle (circles) tests. The $\stackrel{.}{\text{V}}{\text{O}}_2$ (solid reference line) was highest $\left(\stackrel{.}{\text{V}}{\text{O}}_{2\text{pk}}\right)$ on the treadmill test; 80% and 60% $\stackrel{.}{\text{V}}{\text{O}}_{2\text{pk}}$ were 2168 and 1626 mL minute⁻¹, respectively. Therefore, the power for the cycle endurance tests at 80% and 60% $\stackrel{.}{\text{V}}{\text{O}}_{2\text{pk}}$ were 134 W (circled 1) and 87 W (circled 2), respectively. The power for the endurance treadmill tests at 80% and 60% $\stackrel{.}{\text{V}}{\text{O}}_{2\text{pk}}$ was 102 W (circled 3) and 54 W (circled 4), respectively. The respective grade and speed for treadmill exercise was derived from the original protocol. In this case it was 9% grade at 4.2 km hour⁻¹ and 8% grade at 2.9 km hour⁻¹. $\stackrel{.}{\text{V}}{\text{O}}_{2\text{pk}}$: peak oxygen uptake; $\stackrel{.}{\text{V}}{\text{O}}_2$: oxygen uptake.