Gluteal tendonopathy and the frontal plane pelvis posturing.

See that foot turned out into the frontal plane ? Ya, all the time. Finding the cause is where the meat is though.

"Individuals with gluteal tendinopathy use different frontal plane kinematics of the hip and pelvis during single leg stance than pain-free controls. This finding is not influenced by pelvic dimension or the potentially modifiable factor of body mass index, but is by hip abductor muscle weakness."

https://www.ncbi.nlm.nih.gov/pubmed/27395451