Hold the collar of the barbell with both hands, interlocking your fingers for a good grip. Slowly lower the bar to one side, keeping your arms fairly straight. Use your hips and obliques to snap the bar up back to the top. It's ok if your hips turn in order to not put to much rotation on the lumbar spine. Alternate sides until you complete 6-10 reps each side. Start with a light weight as these are harder than they look.