This 10-Minute Abs and Butt Workout Will Leave You the Best Kind of Sore

If single-leg glute bridges are too much for your glutes and hamstrings, do the same move but with both feet on the floor — you'll still get all the same ab and butt exercise benefits, but at a more accessible level.

• Lie on your back on the floor with your knees bent. Flex your feet so that your toes are off the floor and heels are planted. Place your hands behind your head with your elbows wide.
• Drive through your heels to lift your hips off the floor, bracing your abs and squeezing your glutes. At the top of the movement, you should be making a straight diagonal line with your body from shoulders to knees.
• Lower your hips to the floor.
• Lift your shoulder blades slightly off the ground to perform a crunch. Make sure to keep your elbows wide and neck long, initiating the movement from your core and not your head and neck.
• Lower your shoulders to the floor. That's one rep. Repeat for 30 seconds.