So for those training/running who are on beta blockers for hypertension, I have a question. I suspect that the heart adapts to the slower heart rate by increasing ventricular stroke volume in order to maintain a necessary cardiac output for a given effort. So if you withdraw the beta blocker, say two days before a race, and your heart is now capable of maximally increase your heart rate, with the adapted stroke volume, will the remodeled heart be an advantage over the state it would have been in had you not trained on a beta blocker? Would you have a higher VO2 max and be capable of a better performance? Disclaimer: I’m not recommending that anyone do this, in fact I know that abruptly stopping a beta blocker can be dangerous, its just a hypothetical…