Iron Palm is the
vernacular for the results of serious training centered mainly on the
palm of the hand, although other parts of the hand may also be targeted, and covers many different conditioning methods. Most Iron Palm systems are considered
internal, utilizing
qigong exercises to train other aspects of development in addition to the external conditioning which ultimately alters the internal structures of the
hand, such as the
bones and
sinews. Not all Iron Palm methods are a martial arts style unto itself, but rather form a special feature of specialized conditioning that appears in many schools of Chinese martial arts. Some non-Chinese martial arts styles, such as
Muay Thai and many schools of
Karate, also feature hand conditioning, but the term
Iron Palm is not typically used to describe these types of training, as they tend not to focus on developing
internal power when conditioning the hands for the bone-crushing forces encountered with the striking maneuvers evident in
breaking normally "unbreakable" objects. ==General principles==