Cardio Moves That Will Also Give You Ripped Abs

• Start with two high knees, bringing your right knee to your left hand, then your left knee to your right hand.
• Now rotate your right knee slightly outward to bring your right ankle to your left hand, then your left ankle to your right hand.
• Continue in this alternating pattern.
• Do as many reps as you can, maintaining good form, in 30 seconds. Build up to doing this move for an entire minute.

Lifting your knees to waist level works your lower abs and switching the angle of the knee to tap your toes forces your obliques to engage. Plus, this move really gets your heart rate climbing.