I hear ya, Irish.....I went back to my Karate classes last week....during line drills, my legs were quivering a bit trying to maintain a proper stance. My arms were fine, as I have been swimming during my break from Karate. I bowed out before the sparring portion of the class, that would have killed me.
Got home and my quads, calves, and lower back were stiff and sore, did some stretching and was fine the next day. However I was limping a bit, as my feet took some major wear and tear on them, the callouses(Sp?) that I had built up, had all but disappeared. OUCH!!!!
Just remember it is not the end of the journey that is important, but the journey itself.... or something like that.