Well, first of all, shock is not a good thing.
Second, only your brain can guess. The rest of the body doesn't do that.
Third, there is no way to eliminate plateaus. Plateaus occur when you run out of the gains that are due to increasing motor-unit recruitment and improvement of skill and improvement of stabilizers. It's when you reach the limit of the strength of the prime movers.
The term plateau is misleading, because it implies absolutely level. It's actually just a much less steep slope than what you've been used to. It becomes a long, slow process involving patience and hard work. I suspect that it's the point when a lot of people stop lifting.
But it's a good idea to shift your set-rep scheme from time to time, to shift to different variations of your exercises, or to different accessory lifts.
I found some info on a website, which talks about staying on 6-12 rep range for muscle growth.
And says this about plateaus:if you have hit a plateau and you have been doing straight sets of 4x10, switch it up! Do 4x12, or 3x8. If you have been pyramiding your sets such as 1x10, 1x8 and 1x6, switch that up as well to 1x8, 1x6 and 1x4. This particular modification will allow you to use a heavier weight.
You can also take the route of adding less weight and pyramiding your sets with an increase in reps instead.
I was wondering, if for the purpose of eliminating a plateau, one could go above that rep range, like: In a week, go above that rep range and hit something like 16 reps or so. Then, in the following week return to the 6-12 rep range.
Would this work as well?