What are your opinions on how long to do cardio while bulking, and what do you take in pre/post cardio?
do it, adjust your cals accordingly. I prefer fasted AM.
if you just want to maintain healthy bloodlevels and keep some fitness i would suggest not working your heartrate about 145-150.. keep is at a moderate pace (in KPH 6-7) incline... most about resistance than distance! this will be optimum fat burning zone. ideally for 20-25 minutes..
my 2 c.. this works for me.. if i want to cut weight i take that into interval... 1 min or failure whichever comes first at 17kph 1 min 6.4kph..... all the way to 3 kms... but first i do 1km at 15 inc at 6.4kph! if you want powerfull, large, explosive leg muscles this is definately the way to go..
as for miles per hour you'll need to do that calc yourself. as its pretty gay that the US just cant understand the rest of the world. lmao
im pretty sure 1 mile is approx 1.6KM..... so dive by 1.6...
2-3 days PW while on bulk for overall improvement of cardiovascular health and endurance. This is just what I do.