Wow. I have no idea. I've never had anything like that happen, not with using something like a whip. I don't use crops though, no siree, so maybe that is why. I never have had anything cause my wrists to be sore... except pole climbing...

Is it sore muscles or an ache/something feels pulled? If it's in your muscles and feels sore similar to when you workout or when you first begin a tougher level of working out, then it's probably just that you've discovered new muscles. When I first began using a fitness pole, I remember feeling muscles where I didn't even know it was possible! Like my arm pits! So it could just be that your wrists aren't used to having to really do vigorous activity over & over and they're kind of awakening.