The sacroiliac (SI) joints play a crucial role in how your body absorbs load, transfers force, and maintains efficient movement. When functioning well, they provide both stability and subtle mobility — especially at the sacrum — to help the spine and pelvis work together as a dynamic system. When the SI joints are restricted or irritated, however, even simple activities like walking or bending can become painful.
In this post, we’ll take a closer look at what the SI joints do, why sacral float matters, and how you can begin restoring healthy movement through targeted exercises.
Clinical Overview: SI Joints and Sacral Float
The SI joints connect the sacrum at the base of the spine to the pelvic bones. They are supported by some of the strongest ligaments in the body and allow small but important gliding and tilting motions. One of these motions, which is often overlooked, is the ability of the sacrum to “float” or move freely within the pelvic ring.
Sacral float refers to the subtle mobility that allows the sacrum to adapt during gait, rotation, and load transfer. When this movement becomes restricted, the result can be stiffness, instability, or compensatory movement patterns elsewhere in the spine or hips.
If you’re interested in learning more, watch this detailed breakdown:
You can also explore deeper anatomical and clinical insights in our educational handout:
How to Restore Sacral Float
Improving sacral float typically involves gentle mobilization, awareness training, and specific exercises that encourage the sacrum and ilia to move in coordination. These movements help restore natural mechanics and can reduce discomfort associated with SI joint dysfunction.
Start with this guided exercise session designed to reintegrate healthy sacral motion:
If you’re interested in learning more about this topic, please reach out and/or schedule an appointment with myself or one of our highly-experienced chiropractic physicians.
Seth