Advanced: Plank Walk-Up. Get into plank position. Keeping back straight, abs engaged, and legs together, "walk" hands into full push-up position (hands directly under shoulders, elbows slightly bent). Gently walk hands back down to plank. Do 5 reps without lowering to floor.
Learn how to exercise your abs the right way for fast results. If your workout sucks
These Plank Exercises Are the Fastest Way to Lose Belly Fat. It mixes cardio, stability, and strength training to get you fast fat-burning results. How to do it:
Get a flat belly with these abs exercises that only take 5 minutes!. on to your cardio workout, but you'll still results if you only have time for a quick hit of abs.