>>is it really necessary to micro optimize exercise to this extent? Not sure much for a beginner, but even for advanced beginners yes. The heart is very hard

>>is it really necessary to micro optimize exercise to this extent? Not sure much for a beginner, but even for advanced beginners yes. The heart is very hard to optimize machine. More it gets efficient, the harder it is to make it more efficient. Hence every last bit of detail counts. You will be surprised how hard it is to proceed to make the heart efficient by a linear scale.