Anterior Pelvic Tilt
Definition
A postural position where the front of the pelvis drops forward and the back of the pelvis rises. Measured as the angle between the ASIS (anterior superior iliac spine) and PSIS (posterior superior iliac spine) relative to horizontal. Normal is approximately 6-13 degrees of anterior tilt. Values above this range indicate excessive anterior tilt.
Clinical Significance
Excessive anterior pelvic tilt increases lumbar lordosis, compresses the posterior elements of the lumbar spine, stretches the anterior abdominal wall, and shortens the hip flexor complex. It is associated with low back pain, hip flexor tightness (as a consequence, not a cause), and the visual appearance of a protruding lower abdomen. The root cause is typically rib cage position and breathing mechanics, not hip flexor length.
How AKMI Assesses This
The AKMI assessment measures pelvic tilt angle through guided lateral photography, ASIS/PSIS landmark identification, and comparison against normative ranges. The assessment also evaluates rib cage position and breathing mechanics to identify the upstream driver.
Get your pelvis assessed
A biomechanical assessment measures anterior pelvic tilt and its relationship to the rest of your structural chain. 18 tests, objective data, personalized programming.