This isn't cable ab training, it's not a kettlebell, there are no hanging leg lifts, no crunches, no machines and not even a TRX. Naudi Aguilar, owner of Functional Patterns, gives us a quick, four-movement circuit routine with a piece of equipment you've probably never utilized—a tether ball. Get you hands on one of these bad boys for your backyard, basement or makeshift gym and give this routine a shot.

!-- Start of Brightcove Player --
!-- By use of this code snippet, I agree to the Brightcove Publisher T and C found at --

!-- This script tag will cause the Brightcove Players defined above it to be created as soon as the line is read by the browser. If you wish to have the player instantiated only after the rest of the HTML is processed and the page load is complete, remove the line. --!-- End of Brightcove Player --