define hiit training...high intensity training. u got 1 "I" too much? read some Mike Mentzer books--the father of high-intensity. if ur attention span is up to it..unfortunately not many lifters like to read books or long discussion threads no matter how interesting or how informative.
i would save h.i.i.t. training at the end after all the easy stuff is done or else u won't want to do anything else but go home tired.
have someone do 90 percent of the work (like a workout buddy). for example while you're doing a bench press--and have hit negative failure, let ur workout bud just lift the bar and do all the work for 3-4 sets, and all u do is just bring the bar down...you will be doing only the negative failure repetition portion (IN REAL SLOW FORM) of the exercise for 3-4 sets, but ur chest will grow BIG TIME.
anyone remember Cybergenetics back in the late 80's early 1990s? that was supposed to be the bomb back then. it talked about the power of negative rep only exercises too.
for ME, (being a loner with busy friends (goin to school and work) and also geeky friends) im searchin for a workout bud, unfortunately i might have to post some thing like that on craigslist for a local workout buddy. I might even have to pay this dude $20 an hour just to spot me and do positive reps while i do slow negative reps.