Challenge yourself to try this super effective ab move. When you do a plank on a Swiss ball instead of on a solid surface your abs work twice as hard . The instability of the Swiss ball makes it harder to hold your position.
Start to get into a pushup position and place your hands on the Swiss ball. You can also place your forearms on the ball.
Your arms and torso form a 90-degree angle, and your body should form a straight line from your shoulders to your ankles.
Brace your core by contracting your abs as if you were about to be punched in the gut.
Squeeze your glutes.
Hold this position while breathing deeply.
*Want to make this more difficult? Do a “mountain climber” type move.