Running Cross Over Gait

This is a great video explaining the biomechanics that can cause cross over gait. 

https://www.youtube.com/watch?v=WptxNrj2gCo&feature=player_embedded

The resistance tube lateral walk, and the suitcase carry exercises below, using the biomechanics discussed in the video, would be excellent choices to start correcting this issue.  Adding some glute bridging would also be a good choice. 

Resistance tube lateral walk

Suitcase Carry

Glute Bridge

Plank