i) | height = elbow slightly bent during and after execution of block (not "locked out") |
ii) | depth = blocking arm extended parallel to front knee after execution |
iii) | width = blocking arm extended to same shoulder |
iv) | palm facing downward (toward leg) |
i) | not obeying Economy of Motion principle: |
1) | chamber motion done too high (face height instead of parallel to ground) |
Form Specific
i) | not rotating body into stance with delivery of block |
Comments
a) One of the most common execution errors of the Downward Block in Short Form Two is to not utilize the transitional rotation to aid in the execution of the block. Rather to fully rotate on the double factor and step directly forward to complete the downward block - eliminating any body rotational torque. The execution of this block is designed to maximize torque and to minimize back-up mass - i.e. isolate the power principle of torque.

Examples of improper Downward Block execution
(improper height - high / low, leaning, improper width)