Strengthen Your Shoulders and Core With Shay Mitchell’s Dynamic Plank Walks

by Jenny McCoy

"“'Adding a band on top of this move provides an extra progression through added resistance,' James Brewer, NYC-based certified personal trainer and certified Spin and TRX instructor, tells SELF.

If you feel your hips raising up as you move your arms, slow your pace and think about bracing your core to stabilize your lower half, says Brewer. If you cannot keep your hips relatively still while moving your arms, regress to a standard plank to build up the needed core strength to master this more advanced variation. Also: Go easy on the pace. 'Take your time to suck in your abs, press your belly button straight down, and perform these move with slow control,' says Brewer."