I've got a hard time believing muscles will not only stop growing, but atrophy within 6 days of heavy breakdown in the gym.
Is this what you're implying?
i never put a specific 'time limit' on it of say 6 days . my point was that AFTER a muscle is fully recovered that its ready to be worked and start growing again , but if its NOT stimulated again , then it seeks to go back to 'homeostasis' it has no overload or reason to grow. the last thing the body wants to do is put on more muscle . so it will 'atrophy' the muscle if that muscle is not used (thats a survival mechanism).
my point is don't go too long after a muscle has recovered to work that same muscle again. it needs constant stimulus for adaptations to occur and thus hypertrophy.
Also, even muscles that we are not actively working are "stimulated" whilst working our primaries. Ie lats from working chest..
absolutely . I specific say this in the post that you quoted of mine. saying about proper programming ""takes into account secondary stimulation (example, your triceps get worked on chest day , so this stimulation has to be accounted for in the programming).""
so a triceps day does not only occur on the day that you hit your arms, it also occurs on the days that you do heavy bench presses . a bicep day does not only occur on a day you do bicep curls but also on the day you do rows.
a properly formulated program takes this into account.
this also implies no one really hits one body part per week (even guys that do one body part per week bro splits), especially if they are doing compound exercises. body parts are getting hit multiple times per week (but still not frequent enough, imo , for most people)
I'm in the gym 45min-1:15 max (Except back day where the first 50 min is all deadlifts with lots of rest), 5 days a week. I don't see anyway to hit body parts twice a week without increasing time in the gym.
hmm i don't quite get this. yesterday I was running late for some things and I only had about 40 mins of time to hit the gym . I did a back and a chest spit. I got 14 working sets of back in with 3 different exercises, and 13 working sets of chest in with 3 different exercises . all in about 40 mins time.
i did not have my phone with me . I went from rows for one set , then went right to cable flies for one set then went right back to rows for next set , etc etc.. there was ZERO rest in between sets (for the whole 40 mins). and I got a total of 27 sets in in 40 mins. and it was not all fast paced light weight , I was seated rowing the entire stack for 8 reps. but my back got rest when I went to cable flies. again , i would do one set of each without rest.
so its absolutely possible to increase volume and frequency without increasing a ton more of your time in the gym. you just got to be efficient and learn proper programming.
it also as simple as this -- if your program right now consists of 25 working sets per week for your quads . well you don't need more time in the gym to do more frequent quad work , you simply take that 25 sets from you ONE quad day , and split it up over 3 different days and do say 8 sets on each specified day .
you don't have to have a whole 'leg day' you can have a quad work day for 8 sets along with a lats and traps day.