Tone up those hard-to-work lower abs and get in some serious fat-burning cardio all in one fell swoop with this challenging (but fun!) move.
- Start with two high knees, bringing your right knee to your left hand, then your left knee to your right hand.
- Then 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 for 20 seconds, rest for 10, then transition to twisted mountain climbers.
Image Source: POPSUGAR Photography / Kyle Hartman