http://podiapaedia.org/wiki/biomechanics/clinical-biomechanics/biomechanical-assessment/gait-analysis/abductory-twist/
http://www.runresearchjunkie.com/the-abductory-twist-during-gait/
http://podiatric.blogspot.com.au/2008/11/abductory-twist.html
https://podiatryarena.com/index.php?threads/abductory-twist.93483/
https://podiatryarena.com/index.php?threads/biomechanics-of-abductory-twist.20125/