Oh, the treadmill! The piece of equipment at the gym that you either love or hate, but probably use regardless. Run, walk, or crawl, you can use it no matter what level of fitness you’re at, just make sure you’re using it right. And by that we mean there are certain treadmill mistakes that make professional trainers cringe. Follow the link below to see if you’ve made them, and to make sure you aren’t so that hot trainer you’ve been eyeing doesn’t have to cringe at you.