Starting from the fact that I already have some strength for the V-sit, and even though it is not quite right, I will do these series of exercises that I will leave next, the V-sit and the I-sit are exercises that require brutal strength! of abdomen, although the triceps is worked the force that has to be done with the abdomen to have the leg attached to the body, I am somewhat weak in that area! But well, my flexibility is a key point and we will start from there.