fukumi kiai = true kiai
Hi all,
My current opinion on this issue is very much influenced by Aosaka sensei's lesson on proper breathing during Goho (German Gasshuku 2007 in Augsburg).
To summarize his lesson: in goho, during the punch/kick but before impact you release air but stay relaxed, at the point of impact you press all air out using your stomach muscles and thus tense your whole body to give your punch real force. I've tried this a couple of times. It needs training to time this correctly in order not to tense too early making your punch slow or to late missing the actual point of impact. Most importantly, this is not possible with your mouth open like for a loud kiai. The body tension is very different. To put it another way: with the mouth open you rather release your energy/power, whereas keeping your mouth/teeth closed you contain the energy/power and can use it for your punch.
This kind of breathing practically forbids an open mouthed/loud kiai and if properly done results in a fukumi kiai.
that much from me ... tune out
Andrej Mantei
Shorinji Kempo, Humboldt-University Berlin Branch
disclaimer: I deny everything, it was THE OTHERS(TM) again.