One of my routines, but not lately.
Mountain or road bike up the steepest long hill with low traffic and no curves ...(blind curves.)

Do laps.
Use a heart rate monitor and stop watch.

It's best to get accustomed to it and then challenge times, speed and or max HR vox after building up to that zone.

Always start very hydrated.
B vits good mineral.suppliment that has little or no calcium and a quality Mg.
High fat meals.
Co Q 10 with a fatty food.
Progress is measurable.
You can spin for aerobic or crank hard out of the seat for strength.
This beats running for lower impact to save joint and sinew damage, ie. Shin splints.

The latest workout routine is backpacking with building supplies, groceries, or anywhere that I can multitask my practical goals with exercise. When I get to a hill, sometimes I jog it, then get the HR back down, etc.
This helps me know what my current limitations are and when I need to increase weight. It's easy enough to set the packs on a scale at home.

Maybe there's something that can be gleaned from this.

Last edited by Happy_Camper; 05/31/21.