RBE and Movement Variation

Re-listening to the programming Podcasts. A question popped-up, and probably has a simple explanation that I am overlooking.

If RBE is “protective” (limiting muscle damage) then how does it also hold true that highly specific training is correlated with a higher injury risk? In that, if you are continuously training the same movement pattern, shouldn’t the muscles involved in that pattern be more resistant to damage?

I think we probably need to move away from injury being caused my damage because…they’re typically not, save for catastrophic high-velocity incidents that are fortunately rare.

That said, a lack of variety reduces the ability to tolerate movement variations, which occur regularly during training while also creating only very specific adaptations, which may limit motor learning and work capacity.

I think that’s good to separate the two terms.

However, I don’t really understand the follow-up. If variations occur regularly during training, why would one need to add variation? FTR, I am not trying to be obtuse, I just don’t understand.

The way I view it- we don’t plan on variations in a single movement, variations find us and expose us.

Ideally, we’d build an individual with a large physical skill set and work capacity.