Adarq.org

lsd= long slow distance

hiit= high intensity interval training

Then what do you mean lsd at low INTENSITY? I mean, it makes sense for your body to adapt to that if you do a lot of lsd volume, but intensity?

 I mean if youre running a mile, and thats your choice of lsd type cardio, you can either run it like its a race (5 min pace), or jog it like youre trying to burn off a few extra calories, but the intensity isnt high enough to cause many negative adaptations counter productive to fast twitch oriented activities (8 min pace).  Both will have a decent caloric cost, one will start to make you a good endurance athlete.