Anytime you add an element of instability to your ab workout, you’ll make it more challenging. The Prone Jackknife from Oxygen Women’s Fitness is one way to do it.
Start in a plank position with your arms slightly wider than shoulder width apart and your feet and the tops of your shins balanced on an exercise ball (choose a ball that’s at a comfortable height). Keeping your arms and back straight, engage your abs to bring your knees toward your chest rolling the ball along with your feet. Keep squeezing your abs and return to the starting position. Do 2 to 3 reps of 15.
Oooooh…. I do this one sometimes. It’s a good one—it works those lower abs that are always so darn hard to get!
This is a killer ab exercise! Also, if you pike your body and don’t bend your knees, you can make it even harder! (If you want. lol.)
Yes, love this exercise…my clients hate it! The pike..TOUGH FBG!!
My clients hate it too, but it works wonders on the entire body. Abs plus upper body stability equals one great exercise. I like to do it where you curve the spine as you bring the legs in then extend to a flat plank. The oblique ones are killer too!
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