I've been doing some HIIT type work at the end of my Muay Thai classes as a means for extra fat loss and some work capacity improvment.
I read an article recently that stated that the major source of energy for HIIT is carbohydrates. What if, however, one wasn't consuming a large amount of carbs and had a diminished supply of glycogen (due to low carb consumption)?
The energy would then likely come from either muscle or fat then, yeah? If one supplmented with BCAA's before said HIIT, this would encourage the use of stored fat for HIIT energy, would it not?
I ask because I'd like to continue to use HIIT in my repertoire of fat loss tools, but I don't want to cause much detriment. I do other things as well, but would like to do a 15ish minute HIIT (currently stair runs with body-weight squats in between up-downs) around 5x/week.
Any thoughts/suggestions on this?