Re: Is AIKI a regular occurance in professional fights?
if you are talking about the use of internal structure, fascia etc...yes we all use it. Some of us more than others. So I would say that high level fighters use it more than the average person. However, it is all realitive of course, so if the question IMO need to be framed in the concept of "how much" as compared to another fighter.
For what the guys that are really focusing on this stuff are looking at and assessing, i'd say that there is not a whole lot going on there as in order to be successful at this point in time in fighting it really is not that important to develop the use of the internal frame so you will see fighters not exhibiting much of this stuff.
In the future, I think we will see more use of it in sports in general as we re-learn better ways to use our bodies and the stakes begin to shift.