About the lady's body position

I simply repost this here, translated into english. I will illustrate what is the position almost all argentinean ladies take, when dancing tango. The rare exceptions are almost always in the nuevo- and neo-tango species.

To focus the attention:

See the red zone, a curvature in the waist - in fact, this is the natural human body position, only a little but overdone.

Beginning with world-known argentinean couples:










Even this weird nuevo dance, arguably not tango at all, shows the same position, but not easy to see behind all the stuff going on:


The final (2009) of the world tango championship in "tango-de-salon" category:


All these couples, and many, many other, dance this way. Why? Is it a fashion? Or a genetic feature of argentinas? Or is there something else?

The genetics hypothesis is easy to prove wrong - she is brazilian:


American:


French:


Polish:



I think I have just proved the genes are not responsible.

Then? Fashion? Pure coincidence? Or an important part of the dance technique, that there is no good tango without?
The most interesting fact is, that, for my ten years of tango experience, I have not attended a single lesson or seminar, where this position is explained. Not that I did not attend hundreds of lessons and many dozens of seminars. Kind of mistery . . .

Actually, there was one teacher that touched the matter - Andrea Misse explained it once by instructing ladies to think as if their leg is longer (as it is straightened in the course of a back step), projecting above the hips, which is in fact leading to the position we discuss here. But still not quite well explained.

And, for an end, similarly to "Don't do this at home" - please, don't immitate this position unless you fully understand its purpose and right way to accomplish it. Immitating it just externally will do no good.