Today I went for my cardiac stress test.
If you never had one, it involves a treadmill, a bunch of heart and blood pressure monitors, a tube to breathe through and people keeping an eye on you.
It starts off at a flat slow pace. That is to lull you into a false sense of easy exercise. Then they speed it up and put it on an incline. After that they speed it up again and increase the incline to nearly 35°. That last one was very hard on me. I lasted a total of 10 minutes on the treadmill.
My stats were excellent and no chest pain. My BP hit 200 systolic. My heart rate hit 130bpm.
The cardiologist on duty said I did great considering what was done to my heart/veins from surgery. I was kind of surprised myself because I was tired from it but not exhausted. I recovered very quickly.