One of the most overlooked aspects of the bench is the amount of power that can be transferred from the legs to the torso, but this is only possible if the hips are driven strongly into the bench, and the abdominals and lower back are used to keep the torso stable. This is made easier for the athlete by arching, where the lower back is extended. This also serves to allow the lats to be recruited more efficiently by the athlete. The scae should be retracted to their fullest extent. This can not only shorten the bench stroke as well, but decrease the angle of rotation of the shoulder joint, limiting opening of the acromial process.
van madcow's site, kan het wat mooier uitleggen. Erg goede methode vind ik zelf nadat ik mijn grippositie goed heb, schouderbladen ingetrokken ik mijn reet richting mijn hoofd opschuif, dmv van benen dichter bij de bench te zetten, en te duwen. Dan komt de borst zo omhoog, en zit je echt in de bankt gedrukt inplaats van er op te liggen.