Analytic Martial Arts

Tuesday, December 28, 2010

Notation: Complex Transitions 1

Scav and I have been trying to figure out how to denote complex transitions i.e. transitions between stances by means of other actions. In the discussion of my previous post ey noted the following problem:

I wonder about stance transitions that occur as part of an attack. In IAKSA kick-boxing (based loosely on Lau Gar Kung Fu), a front-leg kick usually coincides with a short hop forwards, landing in the same stance. A rear-leg kick can transition into the opposite stance or the leg can be brought back to land in the same stance.

The front-leg kick isn't much of a problem, but we don't yet have a way to cope with the issue raised by the rear-leg kick example. The performer needs to know what stance to assume following the execution of a kick. Experience tells me that, more often than not, the performer maintains the same stance after executing a kick. In which case we can keep the notation compact and efficient by adopting the following rule:

All changes in stance must be explicitly noted.

So, if I write:

    FP
    FBK
HMS 

This is to be read as:

  1. From left half-moon stance
  2. Execute a right front ball kick,
  3. Return to left half-moon stance, and
  4. Execute a right front punch.

Now, how about a stance transition? I think we have most of the notation we need already. Given that we render

  1. From left half-moon stance
  2. Half-moon forward
  3. Into right half-moon stance.

as

    HMS
   ↑
HMS

It seems logical to record

  1. From left half-moon stance
  2. Execute a right front ball kick and
  3. Land in right half-moon stance.

as

    HMS
   ↑FBK
HMS

Combining the symbol for forward translation of the center of mass (↑) on the same line as the symbol for front ball kick (FBK) seems a natural way to indicate that these things should happen simultaneously. This, in turn, suggests the following general rule:

Simultaneous actions are recorded side-by-side on the same line.

Aight, that's enough for now. Comments?

1 comment: