Cardio Moves That Will Also Give You Ripped Abs

• Step back with your left foot coming into a deep lunge, bending both knees to 90 degrees.
• Press the right heel into the ground as you push off with your left foot, kicking your left leg to touch your left toes to your right hand.
• With control, return to the lunge position. This completes one rep.
• Do as many reps as you can, maintaining good form, in 30 seconds. Then switch sides.

Consider this exercise a standing version of the toe-touch crunch with a bonus lunge to work your butt. Standing on one leg forces the core to work for stability, and kicking your leg works the lower portion of the abs.