@Robert. Well you’re working each muscle once every 5 days as opposed to twice a week. See my diagram in point 4. If you get stronger and can make progress like that, fair enough. I’ve tried it. I was actually weaker as I wasn’t fully recovered in time. It depends on how many sets you do. You’d have to reduce the sets per body part to make this work. Therefore I’d rather reduce right down to 1-2 sets per body part and train the whole body Monday, Wednesday, Friday. You can stimulate growth and still be recovered this way.
“Reg Park’s theory was that first you have to build the mass and then chisel it down to get the quality; you work on your body the way a sculptor would work on a piece of clay or wood or steel. You rough it out””the more carefully, the more thoroughly, the better”” then you start to cut and define. You work it down gradually until it’s ready to be rubbed and polished. And that’s when you really know about the foundation. Then all the faults of poor early training stand out as hopeless, almost irreparable flaws. [..]
After the competitive season, train aerobically with your heart rate in the 135-155 bpm range. This can be done with light circuits (basic pushing, pulling, squatting, and hinging exercises), biking, jogging, the contralateral aerobic circuit (created by Cal Dietz), or really anything where your heart rate is elevated to zone 2 for ~1 hour. Train about 4 days per week in this fashion. Once you've completed a couple weeks of this training, start your hypertrophy phase. Your ability to manage high volume training will be significantly improved.