[elevatedastalt]

I think OPs summary is a bit inaccurate. Regular working out is not the issue in my understand. When you start working out after a long break, some of the AST ALT stored in your skeletal muscles gets released as the muscles undergo some breakdown, and this is most common with weight training, not cardio. This is what elevates the bloodstream levels. Once you have worked out for a few weeks it stabilizes to regular levels.

So don't get your liver enzymes tested just a week after starting to do weight training.

> This reads as if the general population doesn't work out

Regardless of the liver enzyme detail, this isn't too far from the truth. And even those who work out usually do cardio, not weight training.