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

This exercise is a sort of two-for-one, targeting your abs and butt. First, you'll do a single-leg glute bridge, then a crunch.

• 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, and place your hands behind your head with your elbows wide.
• Press into your left heel and squeeze your glutes to lift your hips up of the floor, simultaneously lifting your right knee up so your shin is parallel to the ground. You should be making a straight diagonal line with your body from shoulders to knees.
• Lower your hips and place your right heel on 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 to return to the starting position. Repeat with your left leg and crunch again.
• That's one rep. Repeat for 30 seconds.