"The core comes alive on this one!" Katami says. "It's a combo of a basic squat and a windmill of sorts."
How to do it: Start standing, feet together, with the bell in your right hand in ‘rack’ position (the bell should rest on the back of your hand with the handle running diagonally across your palm). Step out to the left and lower into a squat as you press the bell to ceiling and reach your left hand down between your feet. Try to create a straight line between both hands with your arms, and then slowly return to start position. Perform the movement for 30 seconds on each side (60 seconds total) with no rest in between.
Training tip: "Rotation through the midsection should be the primary focus," Katami says. "Always track your eyes with the bell above you, watching the bell the whole time, and carefully return to the rack position at the start."