The IT band functions as part of a three-dimensional system with connections above to the gluteus maximus, gluteus medius, and tensor fascia lata; below to the lateral knee; and deep to the femur via the lateral intermuscular septum.
When we angle the palm by supinating or pronating the forearm, we can diminish the size of the palm contact, making it much more specific without being pokey the way thumb and finger pads can be.