What does this guy have in common with you? Chances are you're both: Jacked Up, This is a phrase largely equivalent to screwed up. It roughly means "in a state of disarray" and is commonly used in the phrase "to jack someone/something up". urban dictionary People come to the gym to un-jack themselves but a lot of the stuff they do when they get here is completely Fubared. Here's 5 off the top of my head things I see and why doing them isn't helping but hurting you and your progress. Jacked Up Thing 1: Walking on a Flat Treadmill. Walking on a flat treadmill, incline at 0%, is terrible for your knees and hips. On a treadmill you're not actually propelling … [Read more...]