It keeps getting more interesting. This is a long and complex atricle, but a worthwhile read. In some cases, if he did not mention martial arts, I would think he was talking about skiing!
. "Stance training with an absence of a horizontal force component does little to prepare the athlete for contact. It could be said that a functional static stance is one that exhibits high levels of stability, and is taught with regard given to the eventual actual use of the position established in actual combat (1). This is almost the opposite idea to the many who adopt the Yee Jee Gim Yeung Ma position thinking it an ideal way to bear ones weight for extended periods of time in the practice of forms or techniques. Ideally, though the feet may not move, the muscles of the legs, pelvis and core, which are responsible for stabilizing the body and initiating movement, are innervated sequentially and/or concurrently in accordance with corresponding movements of the torso and upper limbs. Along with this, subtle changes in the position of the CoG should be felt in concert with changes in where the weight is felt on the SOLES of the feet. This way, neurological pathways linking the arms with the legs are developed and refined, and the early establishment of the beginner student’s perceptual-motor foundations can begin. "
CoG refers to "center of Gravity".
Here is his summary:
"Below is a summary of the principles governing the CoG and its relationship with stability.
* Other things being equal, (a) the lower the centre of gravity, (b) the larger the area of the base of support, (c) the nearer the LoG to the centre of the area of the base of support, the more stability will be exhibited in the stance.
* When giving or receiving horizontal impetus, greater stability in the stance can be gained by widening the base of support in the direction the OF horizontal force.
* Other things being equal, there is a corresponding increase in stability with an increase in mass.
* The greater the friction generated between the parts of the body contacting the supporting surface, the greater the stability.
* The more weight bearing segments IN LINE with the force acting on or being projected by the body, the greater the stability.
* A disturbance of one or more of the body’s balance mechanisms reduces the chance of the equilibrium being maintained as well as produces a reduction in the volition of movement.
Try to read thw whole article!http://www.wingchunkuen.com/journal/...tability.shtml