Yet, people do not walk around bent over at the hip the body instinctively arches back (hyperlordosis) in order to keep out eyes straight ahead (Finas 2006).įitness professionals such as personal trainers speak of the importance of core stability. As the pelvis rotates anteriorly, the trunk must follow. However, for each dysfunction in the body, there is a compensatory reaction. As the rectus femoris shortens, the body must create length somewhere in order for us to stand therefore the anterior pelvic tilt is designed to take tension off the rectus femoris so that we can stand somewhat straight (Kolber 2005). With the prolonged sitting posture, there is shortening of the rectus femoris due to hip flexion. This has become a 21st century epidemic due to the amount of time spent sitting, especially at computers. The majority of patients tend to posture into anterior pelvic tilts that increase the amount of lumbar lordosis (Chaléat-Valayer 2011). Deviations from neutral pelvic alignment, regardless of its direction, results in lumbar spine pain (Sung 2013). This can occur with changes in sitting or standing postures due to changes in pelvic tilting (Levine 1996). Barring any type of structural abnormality, the pain tends to be mechanical in nature. Low back pain remains a primary affliction in the United States.
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