Sure but it's important to be able to map it based on your body current capabilities. Of course I'm biased, I'm asking because my body now can only operate in a

Sure but it's important to be able to map it based on your body current capabilities. Of course I'm biased, I'm asking because my body now can only operate in a narrow range of effort, and I cannot risk overburdening it or I pay a hefty price. So knowing what's the optimal kind and amount would help me stabilize or even recover.