Montague i tried this, and found that like you said the pump was immense, and arms etc would obviously seem to grow during workout due to blood increase in the area....the day after my arms seemed smaller than they were in the brginning, and i feel im shrinking like im over training.
Do all of your muscles appear to be shrinking, or is it just your arms?
As JPM mentioned, 10:10 for arms is
very excessive.
I remember a Poliquin article from a few years ago in which he offered several examples of GVT routines and suggested only 3-4 sets of one exercise
(10 reps ea.) for bi’s/tri’s.
Even assuming that your arms are in an over-trained state, I still don’t know that you’d experience such noticeable atrophy in that amount of time; but I‘m only speculating.
There is quite a number of other things that can cause a somewhat flatter/deflated appearance to your muscles.
Diet - especially carbs - is a huge factor.
Restricted carb intake can often cause depleted looking muscles, so look at your food intake.
If GVT is requiring greater nutritional demands compared with how you’ve been training, you may need to add some carbs to your daily diet.
I’ve also read in one or two places that, for many people, muscles can appear flat during the repair stage.
These articles fail to explain the mechanisms by which this apparently works, but I’ve noticed that my muscles sometimes take on a fuller/more typical look about 3-4 days after working them.
The first 1-2, however, can look disappointing.
Another factor is relativity.
If this is the first time you’ve done a rep scheme that results in strong visible pumps, it’s easy to get overexcited.
Once the pumps fade, disappointment can set in fast.
Remember that pumps do not directly equate to growth. They may help shuttle a bit more O2 and nutrients to the muscles being worked, but a pump is basically a temporary “side-effect” of certain kinds training.
Never presume that a GVT-induced pump is instant miracle growth.
If it’s any reassurance, I’ve never spoken with anyone who’s complained of muscle loss - or even stagnation - while on GVT.
Feedback is always positive, and most of it includes comments such as, “I made my best gains on it!”
That being said, bb’ing is highly individualistic, and it IS possible that your body is not suited to favorable results from GVT.