Take your mountain climber to the next level with this sliding oblique-focused version.
Start in a full plank position with your feet on the plates. Bend your left knee and slide your foot up towards your left hand, trying to bring your knee as close to your arm as you can. Quickly slide your left leg back to start as you slide the right knee up towards your right arm. Repeat, alternating sides, 20 times total.
Tip: Keep your abs braced in tight during this move to help build your speed.