My race of arboreal humanoids has limb proportions very similar to those of a human apart from their slightly lengthened arms. They are already quite strong, and I'm hoping to add to their flexibility.
Felines have floating clavicles that not only make it possible for them to reach farther, but also to turn their upper bodies in midair. I doubt that this would be very useful to a humanoid for squeezing through tight spaces because of its wide hips(please correct me if I'm wrong).
I am most curious about the humanoids' ability to turn like a cat in midair and either land or catch themselves. Would the floating clavicle be of any use to arboreal humanoids? Would it lower their strength or inhibit anything? Would even it be worth evolving?