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The Internal Power Training Blog

Check out the latest info and research from Coach Chris' explorations in the Subject of Internal Power.

The Crotch Arch Bookmark

Across the hundreds of different styles of martial arts, from distant parts of the globe there is often one common posture that is found. It is a posture that demonstrates control, power and security in the legs and is often likened to the posture a rider takes when straddling a horse, the famous Ma Bu or horse stance. This posture so common because it deals with a fundamental part of the body training required in the martial arts, the stable base.

 

This posture, so common to many martial traditions is the result masters from a wide range of styles identifying the importance of the interior tissues of the legs in support, mobility, stability and movement. These tissues are identified as the ‘Crotch Arch’ or in some systems the ‘Dang’.

 

Connective tissue of the legs Bookmark

"Kangaroos can jump much farther than can be explained by the force of the contraction of their leg muscles. Under closer scrutiny, scientists discovered that a spring-like action is behind the unique ability: the so-called ‘catapult mechanism’ ( Kram and Dawson, 1998 ). Here, the tendons and the fascia of the legs are tensioned like elastic rubber bands. The release of this stored energy is what makes the amazing jumps possible.

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Surprisingly, it has been found that the fasciae of humans have a similar kinetic storage capacity to that of kangaroos and gazelles ( Sawicki et al., 2009 ). This is not only made use of when we jump or run but also with simple walking, as a significant part of the energy of the movement comes from the same springiness described above. This new discovery has led to an active revision of long-accepted principles in the field of movement science.”

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