>been doing boxing and bjj for about a year now >can spar

>>36529176
nothing that's normal?

>>36529176
It's a different metabolic pathway and you're using different types of muscle fibers.

A lot of rolling and sparing is fast oxidative glycolytic. Running is more strictly slow twitch.

It's all about SAID principle. Ultimately If you want to be really good at running you have to run.

That's why it's endurance and strength operate on a continuum past initial adaptations.

>>36529176
Your body knows you don't need to run. When you are in a stressful situation your adrenaline starts pumping and you have a fight or flight response. You are trained to choose the FIGHT option so don't need the ability to FLIGHT i.e. run away like a bitch.

>>36529176
How often do you do BJJ/boxing ?

>>36529231
3 or 4 days a week.

>>36529176
>clean

You sound dumb