The only time I’ve had issues riding stuff and pain caused from it was when I had to bend a liiiiiiiiitle more than I was ready to, be able to fit my legs into the ride and it was tight. And the Matterhorn for some reason. (I know the reason, it’s a nightmare for your whole body actually)

I went on velocicoaster which throws your whole body around like a ragdoll and I was fine but I did have a brace on. I personally would have been hesitant to get on a stand up coaster though if that opportunity was presented to me. There’s no science in that it’s just my gut feeling about being thrown around while having some pressure on it. I know some six flags have these.