turkish get-up....

rachel is rockin' her 'turkish get-up'

that is a 25# dumbbell in her hand
the 'turkish get-up' takes a lot of core strength

Translating the Turkish get-up: this unorthodox exercise will help you not only build towering delts but also boost your overall body strength
Muscle & Fitness, April, 2008 by Sean Waxman
SURE, IT HAS AN ODD name. But what the Turkish get-up may lack in creative panache, it more than makes up for in effectiveness. This total-body strength move first made fashionable by old-time strongmen--you know, the ones you've seen in black-and-white photos with unitards and handlebar mustaches--is being resurrected by today's power-lifters, weightlifters and even disciples of CrossFit training for its ability to build freakish strength from head to toe.
The Turkish get-up strengthens your core, all your major muscle groups, smaller stabilizers, tendons and ligaments. In addition, it improves power, flexibility and shoulder stability. And all it requires is, as the name implies, getting up from the floor in a predetermined way.