Muscles: hips, buttocks, legs, back, biceps, triceps, shoulders
It gripping the dumbbell with one hand and flexing his legs, he rises up to shoulder height, Ultimate Testo Explosion holding it close to the body. From there, gaining momentum with legs, the weight rises above the head. Repeat with the other hand.
It seems more difficult than it actually is, and works both your waist you'll notice the abs like marble. Starting from the ground up at various times to standing with the weight lifted above the head. Repeat with the other hand.
Spanish version, Ultimate Testo Explosion do not do this at home
Sometimes you have to train and not have a kettle bell hand.