Anterior tilt to the pelvis (arched lower back) is associated with which syndrome?

• A. Upper crossed syndrome
• B. Lower crossed syndrome
• C. Pronation distortion syndrome
• D. Repetitive movement

Answer: (B)

An anterior tilt of the pelvis with an arched lower back points to an imbalance where the hip flexors and the muscles of the lower back are tight and overactive, while the abdominal muscles and glutes are weak and underactive. This pattern pulls the pelvis forward and increases the curve in the lumbar spine, which is the hallmark of lower crossed syndrome.

In this syndrome, the front of the hips and the lower back tend to dominate, creating that forward pelvic tilt and exaggerated arch. The opposing muscles—the abdominals and gluteal muscles—lack sufficient activation to counteract the tilt, so the pelvis remains tipped forward.

This differs from other patterns: upper crossed syndrome involves the neck and shoulder region with tightness in the chest and upper back muscles and weakness in the deep neck flexors and scapular stabilizers, rather than the pelvis. Pronation distortion syndrome relates to foot and ankle mechanics affecting knee alignment, not a pelvic tilt pattern. Repetitive movement is a general risk factor or behavior, not a specific muscular imbalance pattern.

To address this, focus on lengthening the tight hip flexors and lower back, while strengthening the abdominal muscles and glutes. Practical steps include hip flexor and lower-back stretches, and exercises like planks, glute bridges, and hip hinges to rebuild posterior chain activation. Practicing posterior pelvic tilts and integrating balanced core work helps restore proper pelvic position during daily activities and workouts.