The 13 Best Abs Exercises You Can Do Standing Up

2. Wide side crunches

Legs are wide, in the hands of dumbbells. Turn your toes outward and lower yourself into a wide squat, squeezing your glutes, bending your knees, and keeping your hips level with your torso (don’t push your pelvis back). 

Raise your arms as if catching a ball (elbows bent at 90 degrees), contract your core muscles and bend to the right, trying to reach your hip with your elbow. Do 10 repetitions to the right and 10 to the left. Then, alternately in both directions, 20 repetitions.