Rubber Band Stretches and Warm Up Drills December 3, 2011 By Gregor Winter More mobility today. This time Matt Wichlinski has a couple of good drills to show. He does some Rubber band stretches to open shoulders, chest and rib cage. The ‘one armed /one legged balance plank row’ (that’s the official name) move at 2:20 will be a nice addition to my warm up. You should try it too. Mobility (Not Just) for Meatheads.