Popsugar Fitness Workouts 4-Minute Tabata Ab Workout This 4-Minute High-Intensity Abs Workout Will Leave Your Core Throbbing — and Shredded June 14, 2019 by Maggie Ryan View On One Page Photo 2 of 3 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 2 Toe-Touch Crunch Lie on your back on the floor. Raise your arms to your ears or directly above your chest. Without lifting your hips from the ground, raise your legs, holding them there throughout the set. Use your abs to slowly curl your shoulders off the ground, bringing your fingertips to your toes. Slowly lower your shoulders to the ground. Don't use your neck as momentum to make the motion. This completes one rep. Do as many reps as you can in 20 seconds. Previous Next Start Slideshow WorkoutsStrength TrainingBodyweight WorkoutsHIITTabata WorkoutsAb WorkoutsTabata5-Minute Workouts