For general cardio, you can run 3 times per week but only on your non-training days. If you can’t manage to run on your off days, then I would say run after your training but don’t overdo it: a simple light 20 to 30 minute jog would work real well. Rippetoe says that you shouldn’t really worry about cardio even if you’re a big guy. Lifting weights with this program will eventually add on a lot of muscle “replacing” fat, so don’t deal with cardio too much. If you notice after a few days that you’re having trouble lifting weights or you get too tired during your workouts, turn down the cardio by a notch as it’s likely affecting your training, or stop running completely.

Now, in my opinion, I’d definitely go for a nice 30 min jog on my off days as it’s excellent for your heart. Just so you know, I have been jogging after my training days and it hasn’t affected my workouts. Mind you, I have been doing this program for more than a year now so my body is pretty good at recovery.

I hope this answers your question. Happy training!

ty!