Should cardio be kept constant/decreased/increased during depletion days? I do LISS, for reference.
Also, during depletion days, can/should protein/fat be increased to account for the calories decreased from carbs?
I would say increased so you really target the glycogen stores , HIIT depletes them real nice , but its easier to go with just High intensity cardio. Yes theres nothing wrong with getting higher protein and fats to make up for the calories from carbs.
>SNS-Glycophase<Serious Nutrition Solutions Rep
I'd keep your cardio constant and just change the dietary variable. As mentioned above, HIIT does a great job of glycogen depletion. So does high volume resistance training. On the dietary side...personally, I'd bump the protein up a little while depleting carbs, but still keep calories at or below the level you were prior to the depletion.
Pain is just weakness leaving the body...
I completely agree with Burlyman. I run a carb cycle with every competition I do, when you deplete glycogen by removing carbs, add protein and fats to replace the missing calories. You want to spare as much muscle loss as possible. (Plus, no carbs = no energy) add some fats to get that energy back