Sometimes, problems with your running form are easy to spot. If your neck and shoulders tighten up during a long run, for example, that’s a pretty clear sign something in your mechanics may need attention. Other times, though, the clues are less obvious—either because you don’t notice anything untoward happening while you’re running, or what you do notice doesn’t seem like it matters. 🏃🏻‍♀️ Run stronger, smarter, and more efficiently with the Runner’s World Guide to Running Form . Below are four common but often-overlooked signs of a weakness or imbalance . Address them, and you can run more efficiently while lowering your risk of injury. Stacey Cramp 1. You notice mud or kick marks on your calves. Postrun mud smudges on your calves usually mean more than that you’ll be doing a little extra scrubbing in the shower.…