Pelvic tilt can occur in the anterior or posterior direction. The more common anterior pelvic tilt (APT) is the forward rotation of the pelvis that pushes the bottom out and arches the lumbar spine. It doesn’t matter who you are anyone can show anterior pelvic tilt.
Ideally, the pelvis should be as “normal” as possible, but most people don’t even know what an aligned pelvis feels like. Further, people with APT aren’t necessarily aware of the many issues related to this forward rotation in their pelvic girdle. Their hips might feel fine, but they may present with pain in their lumbar spine.
It is important to understand what anterior pelvic tilt is and how it is typically manifested. The pelvic girdle and the many muscles that surround it are in some way involved in every single movement performed by the body. Anatomically, anterior pelvic tilt is a forward rotation of the pelvis, causing the forward portion of the iliac to move inferior (or lower) to the back. This pelvic tilt pulls the lumbar spine into lordosis, making it look like the client is essentially pushing their bottom out.
This position pulls the abdominal muscles into a stretched position, which over time leads to a drastically weakened anterior core, specifically the transverse abdominals and the internal and external oblique slings. That’s not all: the glutes and hamstrings also suffer from being stretched for long periods of time. Lacking appropriate intramuscular tension within these muscle groups is both the cause and effect of anterior pelvic tilt.
Clearly, APT is a complex problem and commonly associated with low back pain. This is not surprising if you think about how the lower back extensors, or erector spinae, and the hip flexors need to contract heavily to support the rotated position of the pelvis and the lordosis, or inward curvature, in the lumbar spine. As a result, you feel discomfort not only in the lumbar spine, but also in the knees and ankles.
As with most of anatomy and physiology, pelvic tilt is not an absolute position. It occurs on a spectrum, where there are varying degrees of pelvic tilt. Some can cause pain and impact performance, while others are subtle adaptations to life and training.
For those of us who spend much of their time in a seated position, anterior pelvic tilt develops from inactivity, muscular imbalances, and poor neural control of their posture. read more at theptdc.com