How to Do a Plank on Stability Ball
If you really want to challenge the core muscles, try this plank on a stability ball. Maintain the position as long as you can -- up to one minute -- for maximum muscle toning.
Step 1
Get into plank position by supporting your body weight with your chest and forearms on the ball and your toes on the floor.
Step 2
Lift your chest off of the ball so your upper body weight is supported by your forearms.
Step 3
Keep your abdominals contracted and your back straight, eyes ahead of you.
Step 4
Hold this position for as long as you can, building up to 1 minute.
