Having worked with trainers, they know exactly what they believe works best for specific injuries, and what environment for each personality is most conducive to healing.
They are competitive as heck, like NASCAR pit chiefs looking for every possible edge, putting in whatever hours it takes to get that guy back on the field as near 100% as anything short of the resurrection will allow.
Hip injuries, with so many small muscles so difficult to isolate and work on, might be especially in need of specialized treatment devices.
I think there's bound to be a good story for some enterprising reporter who knows someone on the training staff and can navigate the HIPAA compliance guidelines.
Now watch the story be, they put a SpongeBob bandaid on his flexor and told him to take ibuprofen.