So, got inspired by Oldtimer's full body routine, so I think I will do one 3x a week for august just for the f of it
Strength/Compound Day 1
Slant board full squat: 8/6/4/4
DB Bench 15/8/6/4
Pendlay Row 8/6/4
RDL 8/6
CGBP 8/8
OH Viking Press 8/6/4
DB hammer curl 8/6
fin
left bicep, left lat still f'd up from OCR saturday. #dannyglovertoooldforthisshit
It has many advantages. Once done your are finished. If you have are driving to a job say an hour each way and have a family a split often gets fucked up due to obligations or exhaustion.
Working out the old school 1950's way you can miss days but stay on track. If you have a week with two workouts a week it isn't a big loss. Hell even doing it once will keep you from back sliding.
The frequency is such a positive factor too with a whole body routine. I always have problems with pull ups. Doing them once a week on back day in a split I would improve at a crawl. Doing them three days a week would mean quick improvements.
Your body in any athletic endeavor works as a unit. From a kinesiology perspective analyze something like sprinting, throwing a punch or what ever. The body doesn't work in isolation. Why workout that way in isolation unless you're a mirror bodybuilder?
The negatives are that you can't do four exercises a body part. Do you need to do four different curls anyway? Doing a whole body routine you can also do a new routine with different exercises say every two weeks or do an A-B workout. I prefer to just change it up every two weeks.
Another negative is that it's indisputably the hardest way you can can train. A guy doing a five day bro split where they hit say just shoulders on a day will be in for a world of hurt doing a full body routine. I also believe it burns the most amount of calories.
Doing it three days a week doing something like the Monday, Wednesday and Friday leaves the weekends free. If you have to miss working out for three days nothing is lost. Just hit that whole body one day in a gym and you're back on track with no losses. For a drug free lifter it's the way to go. Having said that I will of course go back to splits at some point. The whole body routines are brutal.
A good source is Bryan Haycock. Who bought back the old 50's way of training. He rebranded the old training method as HST. Made everyone think he created something new, lol. He really talks common sense about training. I don't agree with him on everything but he has solid advices.