A notoriously tight area are the quads (front of the thighs). Continued tightness will definitely cause discomfort and can lead to issues with how efficiently associated muscles or joints can function such as hamstrings and knees. This release can highlight some very tender areas so don’t overdo it. A pain level beyond a 4 or 5 would suggest the foam roller is a little intense. Safety of the low back, neck and shoulders are highlighted throughout so take care to listen to the cues.