Traditional Block Periodization vs Verkhoshansky’s Conjugate Sequence System (aka The Block Training System) A lot of people get these two confused and think the Conjugate Sequence System is just block periodization but in a specific order, but this is not actually the case if you’ve read his books or the forums. �Verkhoshasnky was aware that specific qualities will detrain if you do not work on them, so he developed his conjugate sequence system to where he would emphasize certain qualities dur