Practicing the Deadlift with an empty bar is not the best idea . The lift must start from the ground , and the discs must give the bar its proper height . If you try to do this with an empty bar you end up guessing which height is right . That being said , the ideal position for this lift is your midfoot under the bar . This is what I mean c ontentuploadsdeadliftfeet . jpgBy making sure of this detail , you will also be dragging the bar on your legs , instead of moving it around your legs , which is what you ' re currently doing . Dragging on your legs makes the bar path much more vertical and consequently makes the lift easier . Moving it around your legs makes it harder for you , and may even be a source of injury . Your back doesn ' t round or hyperextend , which is expected from such a low weight . Can you show us another video of you , with a loaded bar ? You don ' t need that much weight , just one disc on each side with enough radius to raise it from the floor . In my gym I have 5 kg discs which are as wide as a usual barbell disc 500500 This would increase the load from 20 kg to 30 kg , but it ' d be much easier to check if you ' re on the right way or not .