Had the last stress test in Feb of last year and did my max heart rate for something like 12 minutes on the incline according to the doc it was the last step in the test and then the treadmill started making some weird noises and he told me " I think you broke my treadmill" all was well and he was happy and this was before I lost 30 lbs so when I have the next one I should kill that machine. I hate those treadmill tests I even had the one where they give you the radioactive pill or shot or what ever I can't remember and then do the scan like a MRI and the doc said I had an excellent heart and no clogs anywhere. So at 54 I feel pretty good. Now watch me get hit by a bus then they can he died but he was in really good shape.