The Kettle Bell Alternate Swing works the glutes, core, shoulders and chest. Stand with your feet set wider than shoulder-width and lean forward with a straight back to grab the kettlebell. Drive your hips forward and swing the kettlebell up to shoulder height with your arm straight in front of you. Swap the kettlebell to your opposite hand while in mid-air and reverse the swing to the start position. Repeat with the other hand.