04/01/2025
When the pelvis rotates in the sagittal plane, the position of the acetabulum (hip socket) changes as well. Thus, when various restrictions, imbalances, and compensation patterns are holding part of the pelvis in an anterior or posterior tilt, the functional length of that leg will change too. An anterior tilt, for instance, will make that side leg functionally longer, pitching your weight to the opposite side. When you think you have one leg that's longer than the other, or someone tells you so... this is usually the sort of thing that's happening.