First, let's take a look at the biomechanics, or leverages you use when you pull the bar. In the conventional pull, feet are close together and the hips are very far away from the bar. this position results solely from the placement of the feet. the bar will travel a longer distance because of this, regarless of the actual muscles involved.
If we compare just this with the sumo deadlift, we can clearly see why it is already a better and superior way of lifting the bar. because the bar will travel far less with the feet further apart, the amount of effort required to lift it is diminished. That alone is sufficient to proclame the sumo a better lift.
However, there is another reason beside the reduced distance the bar has to travel. That is, the load of the effort placed on the hips and quadriceps, rather than on the spinal erectors. Indeed, with the sumo pull,
the hips are involed way more. the glutes, quadriceps and the hips flexors do the work the back would do in the conventional deadlift. Furthermore, when placing a lot of the stress on the hips rather than on the back, we decrease the risk of dangerosity of he lift and also we reduce the overall stress our CNS receive.
So baiscally, we can not only lift more weight this way but also lift more often thus train more often or do more volume than with the conventional deadlift, a lift known for heavy stress on the hammstring and lower back.
So not only the sumo deadlift enables us to lift more weight thus become stronger, but also it enables us
to train more often and gain more muscle. So there you have it, the sumo deadlift : a superior lift.
