The hip is a major contributor to all core work. In fact, when we first learn to sit up as babies, we rely on our hip muscles rather than the muscles of our trunk to do this. Repetitive motion like cycling, running and squatting can irritate the muscles in and around the pelvis, leading to chronic pain or limitation. Sciatica and piriformis syndrome are two conditions often presenting with similar symptoms. Here is a guide to the difference between the two as well as treatment for each.
from Breaking Muscle http://ift.tt/2jKlbrj