This is very interesting, back in the seventies I was tought that the point of learning a martial art was to effectively defend yourself, if you wanted to take up as a sporting art it was up to you, there physical conditioning goes along with your level of training and is good for the body, making you stronger andabove all faster, speed is so important, the faster the more effective your strike. However we were also tought to prepare against strikes,you cannot block them all, and if faced in a street fight however rare that may be,there are no rules, you may be hit by low blows amongst others, some of the teaching were :if one was afraid of pain you would probably loose the first time you were hit, we were told pain was the best teacher, and learn to overcome it,understand the different kinds of pain wherever arising, and learn to overcome them.YOU needed to take pain and give it back...
These are the teachings of Greand Master Sijo Adriano Directo Emperado in his formidable Kajukenbo, truly preparing one for street fights. I have the greatest admiration to this Greatest of Grand Masters and his tequniques
i found this kind of pain conditioning to virtually every part of your body ,not suited or everyone ,( many left because they could not take it) it is really mainly for those with high to very high genetic pain thresholds, Today many students do not like experiencing pain while training,, if they don't enjoy they just quit.also there are restricting legalities
However those who have acquired the concepts of the old school can counterattack with surprise even when struck in very painful areas with multiple strikes shocking the attackers to the point that they flee.
I still believe pain conditioning has a big role in real out in the street self defense, but it is not for everyone .
Sanchin training in kata form is a milder form than Kotae Kitae,seldom this is seen in practice mowdays ,nowadays with some of the arts replaced as a sport with rules which bears little resemblance the the arts of old.