|
well, if you are doing cardio like running on a track, thats probably true, to a degree. However, minimal because you still have all your glycogen stores and thats how your body makes energy pretty much.
Cardio just doesnt really burn ANYTHING until about 30 minutes, and doing it at the end of a work out is a great idea, gets the last of your reserves gone, makes your body adapt harder.
so for fat burns I would say 45 minutes plus if its just cardio and you want your cardio to get better.
The end of the workout cardio is great too, just dont kill yourself on it 
but a 15 minute light warmup, i wouldnt worry about protein/muscle loss.
|