I definitely notice the connection between hip pain and back tightness. I have recurring hip/glute soreness that can radiate around to the hamstring and to the hip flexor. I recently discovered that my QL muscles in my back are very sore but only when pressure is applied. I didn’t know that the back muscles were contributing to the hip pain and pelvis stiffness, but my ART practitioner worked on them to finally resolve the hip pain. Everything is related! Between treatments I use the RAD roller for the back and hip, as well as the helix which has a broader profile (http://www.radroller.com/#_a_AZ). The combination is keeping me running and pain free this season.