The infamous planks... a staple in our programming and the industry. They can be done anywhere, require no equipment, and yet are challenging enough for most clients. But how do you up the ante to add variety to and more engagement of the upper body to this simplistic movement? See how Mindy Mylrea, creator of Tabata Bootcamp, uses a more intricate version of the plank to engage the shoulders, arms, and chest while toning the abdominals and glutes and stretching the arches of the feet, calves, and hamstrings.