Our gym has treadmills with different "fitness tests" that are pre programmed.
So, one can take a variety of fitness tests, including a 5 minute "quickie."
They typically give you a pretty good incline and I do the test at a rate of 4.5 miles per hour.
However, you must have a regular, measurable heart rate to do the test.
I used to do the test prior to my atrial fibrillation, and always got either an "elite" or an "excellent. But, since my AFib, my heart rate was not regularly measurable - sort of like beat . beat . . . . . . beat . beat . . . beat . . . .
So, today, following my heart PVA ablation in August, for the first time in over a year, I was able to take the test again, and came out "elite" which means that the old ticker must be percolating along pretty well.
I'm not bragging, because every regular rider here would also get either excellent or elite. Just comes with the territory of being a regular rider.
But, it WAS sort of fun!