The raised heel facilitates the “flat footed” bending of the ankle joint and at the same time a fuller extension of the leg, hips, pelvis and lower back – subsequently improving technique.
During a clean or snatch, the weightlifter moves his feet apart and fully bends the knees, hips and ankles to squat down when “receiving” the bar at the chest or overhead, respectively.
Effective technique requires the forefoot to be flat on the floor in “deep split” and “deep squat” styles to maintain balance and stability.
A shoe with a raised heel allows the weightlifter to squat down with a vertical trunk, full extension at the knees and shins tilted forward.
Please note: You should not attempt to lift heavy weights without the right equipment and expert supervision.