[fireinmeh]

Well, does anyone here stumble this video already most painful in slow motion ? I actually found this one as I was surfing awhile ago and I was amazed how this people do that kind of thing. Actually the featured video is about the karate chop and the slap in the face, I can say it was astounding act especially the karate chop video but the slap in the face video is for sure hurts big time. Wish I can try it to my bf :- p

[dscott]

Seen them. It's amazing how much punishment the body can take though.

[Wilhelm von Wankenstein]

In fact, the body undergoing controlled deformation during the act of striking is a good thing for a number of reasons, particularly if the object being struck is as hard as or harder than the striking surface used. Due to the law of conservation of momentum, the kinetic energy of the strike has to go to either changing the momentum of one or both bodies (ie. the strike moves the target or the limb bounces off, or both), or else into deformation of one or both of the surfaces in contact. Through controlled deformation via the soft tissues of the hand and forearm, this prevents deformation of the hard tissues (ie. broken bones) and also incidentally reduces bouncing, enabling more follow-through force in the strike. This same principle is seen in deadblow hammers, which have hollow heads filled with shot or gravel, which allow stronger blows to be used without the head bouncing off, as the filler absorbs the reaction force of the strike and disperses it.