Interesting to hear the comments of you previous posters, because I don't get affected like that, other than at my age I have poor, tired aching legs a lot of the time, irrespective of whether I've done a long walk or not. In fact, the more I think about it, I suffer less after a walk in the country beacuse, I presume, I'm using my legs and feet for what they were intended for, rather than getting up and down from the sofa, pounding hard city pavements and stairs, standing propping up bars etc etc. No, I would say in my case, eight hours in bed is sufficient treatment, though the muscles can be a bit stiff for the first fifteen minutes the next morning. As for Ibuprofen, isn't that connected with kidney damge?