During the comparisons of the compulsory poses, the judge should first look at the primary muscle group being displayed. The judge should then survey the whole physique, starting from the head, and looking at every part of the physique in a downward sequence, beginning with general impressions, and looking for muscular bulk, balanced development, muscular density and definition. The downward survey should take in the head, neck, shoulders, chest, all of the arm muscles, front of the trunk for pectorals, pec-delt tie-in, abdominals, waist, thighs, legs, calves and feet. The same procedure for back poses will also take in the upper and lower trapezius, teres and infraspinatus, erector spinae, the gluteus group, the leg biceps group at the back of the thighs, calves, and feet.