Band Supported Pull Up: Horizontal Band or Vertical Band?
Here is a comparison of assisted pull ups with a band secured horizontally to the squat rack and a band secured vertically (the traditional method).
The band attached vertically allows for more forward swing during the pull up, while the band attached horizontally helps keep my ribs and pelvis more aligned.
The more stacked alignment allows my core to recruit more optimally, but there may be less shoulder work as I don’t have to control/prevent a forward swing.
Neither is necessarily better, or maybe it is depending on your opinion. But it’s helpful to know the trade offs with each variation.