Jack Knife – This core exercise is a more challenging version of the plank. A important part of this exercise is always try to keep your back as flat as possible. 12-20 reps x 2-3 sets.
Stability Ball Plank – Using a stability ball adds another layer of challenge to a plank. The instability of the ball helps recruit more muscles into the plank. 60 seconds x 2-3 sets.
Supine Lateral Ball Roll – This big bang exercise will require you to use every muscle in your body. Keep your tongue on the roof of your mouth to stabilize your neck. 6-10 each direction x 2-3 sets.
Forward Ball Roll – This advanced plank has two variations. For beginners work from your knees, advanced from your toes. 12-20 x 2-3 sets.
