According to John Berardi - Do Your Cardio! for cutting AND bulking. He said to do moderate cardio post workout as for anything over 70% HR max, you'd be burning more glycogen than fat. I couldn't find the exact issue because the search engine is broken and sorry if I'm off on the 70% but basically, the lower the HR%, the more fat you burn.
My question is what is the minimum % you need to acheive to burn fat? Would walking after lifting suffice? What about on non-lifting days?
Any expert info is greatly appreciated.