After I run, my legs are usually sore for the rest of the day, and maybe the next day as well. But it’s a good type of soreness. Unlike a sore neck or back, it’s not a pain. 🙂 Maybe it’s tied to a sense of accomplishment. Whatever it is, to me it’s just another benefit of running. Although the frequency of my runs goes through its ups and downs, the sore muscles are always something that will follow.