What this does is keep you from getting all Hulk'd up at the initial start of the concentric. This will force you to stop doing that stupid and ugly biceps curl where the biceps actually never get fully lengthened. Can strength athletes actually benefit from the adductor and abductor machine? Here's a better, more back-friendly way to perform the dreaded burpee. Sit in the machine and position one pad just above your knees, the other behind your heel.
Moving on up
Hold at the top to feel the squeeze in your quads, then lower slowly. We're now going to take a page out of Arnie's book and actually include some "cheat curls" to extend the set. You don't have to ditch all your leg training when your knees are acting up. The seven-time Mr Universe built his physique picking up hunks of metal and putting them down again.