Two-Mass Model

Recent study that details a general relationship linking gait mechanics and running ground reaction forces.

https://blog.smu.edu/research/2017/01/30/new-study-connects-running-motion-to-ground-force-provides-patterns-for-any-runner/

Reference: http://jeb.biologists.org/content/220/2/247

https://www.youtube.com/watch?v=L9kd7tyxbiA