Figure 1
From: Endurance training of respiratory muscles improves cycling performance in fit young cyclists
Test-re-test reproducibility in the control/placebo group subjects during the time trial test and the constant work-rate exercise (CWE) test, before (Pre) and after (Post) the intervention period. Control and placebo group subjects are depicted with different symbols. Identity lines drawn in both graphs. Note that the time trial test is significantly more reproducible than the CWE test, consistent with the findings of others [13,14]. See text for numerical analysis.