Fig. 4
From: Relationship of post-exercise muscle oxygenation and duration of cycling exercise
![Fig. 4](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs13102-016-0036-y/MediaObjects/13102_2016_36_Fig4_HTML.gif)
a Overshoot values of ΔTHb (solid line) and end-exercise (EE) heart rate values (broken line) (mean ± SD) after the five exercise bouts. b Overshoot values of ΔO2Hb (mean ± SD) after five exercise bouts. Asterisks represent results from post-hoc tests in relation to values marked with double lines; * P < 0.05; ** P < 0.01; *** P < 0.001. Heart-rate values all differed significantly from each other at P < 0.001