Comment by gazpacho

I’m mostly talking from personal experience. I imagine an actual well powered study on this sort of thing would be hard to do, for similar reasons a lot of fitness / nutrition studies are not great. I agree that a good diverse full body routine would help mitigate injury risk vs a less diverse routine. Obviously diminishing returns but expanding outside of the weight room is IMO also helpful for injury prevention if not quality of life. Pertinent video: https://youtu.be/rb2DPHi39FU