goblet step-up is a calisthenics and free weights exercise that primarily targets the quads and to a lesser degree also targets the calves, glutes, groin, hamstrings, hip flexors and outer thighs. goblet lateral step-up is a calisthenics and free weights exercise that primarily targets the outer thighs and to a lesser degree also targets the calves, glutes, groin, hamstrings, hip flexors and quads.