Preparatory position: Stand up under a barbell, feet on width of shoulders. Put a barbell grip on your back, so that it conveniently lies on back muscles, but not on your neck. You can put a towel under the barbell if it isn't comfortable. Take the barbell with the wide grip, remove a barbell from a rack. Step your left foot forward and your right foot—back so that they stand at a step distance from one another. The right heel is raised, the body is straight, bring plate bones together, abdominal muscles are strained. Keeping balance, execute knee-bend. The right knee shouldn't go beyond the line of the right feet toes. Return to the starting position. Don't round your back, otherwise you endanger your backbone.