Here's A Simple Way to Take Your Plank to the Next Level If you’ve been incorporating planks into your core workout routine, I’ve got a fun and easy way for you to mix it up – ball squeezes. Adding in this simple addition to your plank workouts will challenge your muscles differently than ordinary planks will. All you need to get started is an inflatable ball, yoga block or … [Read more...] about Activate More Core Muscles By Adding This To Your Planks