Maybe I'm just lost but I don't get it at all. Bianca and I neither one had any issue with this test (at least not by using the basic directions given here) and can't even figure out what the heck it has to do with elbows. When I turn my palms forward I feel it in my shoulder, not my elbow.
I personally find it very easy to keep my arms completely pressed against my body and turn them from palms inward to palms forward. Bianca also had no problem with this.
While I do think this is all absurd I now wonder, are we doing something wrong? lol
Also, this is not meant to be offensive, but in reference to how this test would prove accurate including cis men and cis women along with FTM and MTF people... anyone on this site or in this thread who is not yet transitioning would qualify for the part of cis male or female in this type of study. Physically if you have not changed your body at all through hormones or surgeries it would still function as any cis genered person's body functioned. So if even one person who responded is MTF who has not began to transition that would physically cover the same requirements you'd need from a cis man. For clarity, once again, I am not saying they are men, but physically the bone structure, muscle structure and weight distribution would all be there for the purposes of a test that requires only a physical male body.