This is a very broad question. A huge part of biochemistry is centered around this very topic and there is no way to cover it here.
However, I assume you want to know how to fit everything into your training without screwing things up. I can give you a weekly template of Dan Pfaff, who is a brilliant track coach, to show you how he incorporates both lactate and alactic dominant sprints into a training week.
I can’t recommend Dan Pfaff’s work enough. You should definitely check his stuff out. It’s a lot easier to understand than slogging through a biochemistry book and trying to apply it.
BTW, 30 sec is the beginning of the lactic zone. It peaks at around 45-60 seconds. But someone new to this should definitely start with 30 sec. You will likely need more than 2 minutes of rest between those sets.
Ok. Would you recommend these on off days or before a workout?
I think if I did a sprint 8 workout like you talked about in your article before a weightlifting session I would be drained.
That’s why I was thinking of alactic Sprint’s before a workout. These dont drain me as bad as Lactate sprints but didn’t know if they would produce good results