| a) | proper alignments: |
| i) | height = blocking arm extended to top of head |
| ii) | width = blocking arm extended to opposite shoulder |
| iii) | depth = arm angled forward at 45 degrees away from you |
| iv) | fist positioned (palm facing directly forward) |
| v) | ending with angle of deflection (from overhead attack) |
| b) | improper execution: |
| i) | not obeying the rule of Margin for Error: |
| 1) | executed like 'chicken wing' (strike), no torque, just arm lifting |
| ii) | improper angles of execution |
| 1) | not executed parallel to body (vertically) |
| c) | improper execution (double factor): |
| i) | not transitioned along center line - vertically |
| 1) | executed with arm remaining horizontal |
| 2) | executed with arm crossed center line |
Form Specific
| a) | improper positioning: |
| i) | hand not fully closed (positioned like middle-knuckle) |
Example of proper Upward Block (left)
(with hammer-fist)
Examples of improper Upward Block execution
improper height, improper angle of rotation,
improper depth, improper width, improper angle