You start in basic plank formation, and then follow by bringing your left leg into your right shoulder, back and repeating for 30-seconds before switching legs. Once your minute is

up, it's on to the next plank!

Start in your standard side-plank position with your hips lifted and obliques engaged. After 30-seconds transition to your other side and do the same.

Here's a fun one: if you have legos, get 'em ready to stack during your one minute, alternating arms throughout. If you don't have anything stackable on hand, you can

tap your hand to the center, then back, and switch for the full minute to hone in on toning those arms.

Begin in your standard low-plank position on your forearms. Then lift your right and left leg up, switch sides, and repeat until one minute is up. Your obliques should be

burning!

Start in a standard high-plank, then put your arms to a low-plank one-by-one, then back up, repeating for a full minute. Once this is complete, you're all done. Bravo!