The 8 Best Ab Exercises to Level Up Your Core Workout

This move challenges both the lower and upper abs to maintain torso stability while your arms and legs move away from your center.

1. Lie on your back with your arms reaching toward the ceiling, holding one weight with both hands. With your left leg bent and right leg out long, bring your right toes toward the ceiling. This is your starting position.
2. Lower your arms and leg toward the floor, keeping your lower back touching the mat.
3. Lift your arms and leg to return to the starting position. That's one rep.
4. Do three sets of eight to 10 reps on each side.