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This move engages so many muscles—from the bottom region of pelvis upward—and works the obliques at the same time without straining your neck, says Joey Atlas, a personal trainer and author of Fatness to Fitness.
To do it: Lie on your back with your knees bent, feet flat on the ground. Bring both arms overhead and hold onto the bottom of couch or a heavy medicine ball (as shown). Cross your right ankle on top of your left knee. Exhale and lift your legs in (in the same cross-legged position) as close to your chest as possible, lifting your hips and lower back off the floor. Inhale and slowly return to the starting position. That’s one rep. Try for up to 15 reps with the right leg, then repeat on the left.
20 top fitness experts reveal their go-to move for a flat, sexy stomach.
20 top trainers reveal their go-to move for a tight, toned tummy.
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