This is an excellent opening for the low-back, hip and ITBand. The relative position of the femur relative to the trunk is; External rotation Abduction Trunk Flexion Therefore this exercise is excellent to lengthen through Peroneii, IT Band and thoraco-lumbar fascia. Perform 1-3 times per week.
Side-lying set up with underside hip flexor quad on length into oblique abdominals and pec major. Top-side hip and posterior sling on length into contralateral lat dorsi. Take partner into deeper yield and lengthen experience on the exhalation.