First half of this movement (you don’t have to pull to an inverted hang and perform a negative “front pull”):
Here is just the leg lift motion by itself. Note that Brandon is very, very strong and this exercise is little more than conditioning for him at his level, so he kind of breezes through them and his form gets a little sloppy as a result. Also, don’t listen to Brandon’s suggestions for reps though, he is an advanced gymnast and likely not familiar with training non gymnasts.
Here is a single leg variation:
