Was thinking the same thing about the limiting mobility??? we want to increase the range of motion, “mobility” of the hip complex. Im a perosnal trainer certied through NASM. I was looking for answers as to a double hip replaement and the fellow has now a perminant infection in his femur at which the dotcor has prescribed antibiotics that is now taken, supposedly, for the rest of his life. …. this has been a task for me but the gentlemen is head strong and stubburn. Very good traitsto have whwn going through something this extreme.. i would appreciate any input or advise. The right side was replaced long before the left. And left just about a year ago. Also i have no idea the tyoe of replacements that where underdone. Thanks!