I don't know what's normal anymore myself. As I'm doing resistance work, my muscles fatigue. Near the end of my last set of something, they often burn a bit. Afterwards, I'm sometimes a little sore. The pain typcially sets in about 36-48 hours later.

However, a couple of times lately, I've been unable to move a couple of days after a workout. The first time this happened, I'd done a combination of mountain climbers and reverse lunges using a TRX strap. That was on Friday. By Sunday, I could barely walk. My hip flexors and quads were excruciatingly sore. It took several more days to return to normal. Last week, it was one of my quads after a series of calf raises. Now we do calf raises a fair amount, so I was surprised to be that sore.

I have to admit that this level of post-workout pain freaks me out. What is going on with my body? It's not like I've been inactive for years and am just starting to exercise again. Thankfully, aerobic work rarely leaves me overly sore.