At an angle of 70 degrees the sciatic
nerve and its roots are usually fully stretched. So pain that is
experienced beyond 70 degrees is probably from the hip,
lumbosacral or SI joints, as the supporting structures around these joints are
stressed in this range (Hartley, A.1995. Practical Joint Assessment. Lower
Quadrant. Mosby:USA.). If the pain occurs bilaterally in this range, the
problem probably originates in the SI joints.
Hope this helps
Regards,
Steve Aspinall
2nd Yr Sport Rehab Undergrad
