Severe posterior pelvic tilt

Severe posterior pelvic tilt vs. the posterior pelvic tilt that can be much easier to miss. In the first example, I’m aggressively clenching my glutes and tucking my pelvis underneath me, so the posterior tilt is obvious. In the second, the tilt is more subtle. I can still create a visible low-back arch because I’m actively correcting against the posterior position — which is exactly why you cannot diagnose pelvic position from lumbar curve alone. Posterior pelvic tilt can sometimes be associated with things like reduced lumbar lordosis, swayback posture, rib-cage compensation, altered hip mechanics, or low-back discomfort. But none of those are required for PPT to be present. You can have posterior pelvic tilt with or without: * a visibly flat low back * rib flare * swayback posture * low-back pain * an obvious tucked appearance And those same signs can also come from other mechanics entirely. That’s why the goal isn’t to look at one feature and say, “there’s the problem.” It’s to look at how the pelvis, lumbar spine, rib cage and hips are actually interacting. If you have to actively “undo” your resting pelvic position to create the posture you think is neutral, that resting position probably deserves a closer look.