A few thoughts about exercise testing and its physiological basis. I cover the basic types of test from the point of view of Wasserman's gears model, as well as highlighting potential pitfalls of each test.
Wasserman et al. (1967) https://journals.physiology.org/doi/abs/10.1152/jappl.1967.22.1.71
Amann et al. (2008) https://pubmed.ncbi.nlm.nih.gov/18379223/
Heuberger et al. (2017) https://www.thelancet.com/journals/lanhae/article/PIIS2352-3026(17)30105-9/fulltext
Blog post: https://drmarkburnley.wordpress.com/2017/07/07/epo-does-not-work-or-how-randomised-controlled-trials-will-fail-if-the-nuts-and-bolts-are-faulty/
