Get Flat Abs Fast (at Any Fitness Level)

Advanced: Plank Walk-Up

Targets: Arms, abs, back, and glutes

• 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.