Fig. 2
From: Relationship of post-exercise muscle oxygenation and duration of cycling exercise

Typical kinetics of ΔO2Hb, ΔHHb, and ΔTHb during and after 30-s and 240-s cycling at 80 % \( \overset{.}{\mathrm{V}}{\mathrm{O}}_{2\mathrm{peak}} \) in relation to baseline values (set to zero). Note the marked overshoot in ΔO2Hb following the 240-s exercise interval compared to the 30-s interval