Body is weird.
I made host do a double leg day on Tuesday. Including climbing 1000 stairs on that stair machine, basically running. That was mildly exhausting but that's about it. No soreness whatsoever.

Then we went to a dynamic shooting competition on Friday that involved some crouching and crawling. Not even in full gear, no ballistic plates and helmets that weight you down, basically nothing compared to a normal gym day. But man, the body was utterly sore the next day and also the day after. Especially butt and legs, can barely get up. I mean wtf is this? That never happened in the gym ever since we started in fall.

Only time I remembered something like before when we went to play paintball years ago. Basically the same movements, it obviously involves unfamiliar poses the body's not used to at all. So that's proof the gym doesn't train all muscles. Not surprising but one should expect to get at least some secondary benefits. But that's apparently not the case.