====== Pelvis Stability ======

  - Determine YZ values of left and right hip joint centers at timepoint of max knee flexion
  - Calculate the difference in Y and Z between left and right hip joint centers
  - Calculate pelvic drop angle by inverse tangent of difference in Z over difference in Y
  - Metric calculated for Step Down, Triple Jump, Deceleration, Cut.

|| Score || Scoring Definition  || Significance||
|| 0 || Pelvic Drop is greater than 10 degrees || Significant Pelvic Drop||
|| 1 || Pelvic Drop is greater than 5 degrees || Mild Pelvic Drop||
|| 2 || Pelvic Drop is less than 5 degrees || No Pelvic Drop||

{{ :pelvis_stability.png?nolink&400 |}}