The Wobbly Table: Why Your Deep Hip Rotators Are the Key to Resolving SI Joint Instability
- Dr. Justin C. Lin
- 2 days ago
- 2 min read
If your lower back is constantly aching or you feel a persistent "instability" in your hips, I want you to imagine a table with a wobbly base. No matter how much you stack on top or how strong the tabletop is, the entire structure is eventually going to break down because the foundation is weak.
At Rehab and Revive, we find that many chronic back and pelvis issues stem from this exact scenario. Your hips and SI (sacroiliac) joint represent that base. When your deep hip rotators are weak, your back and pelvis are forced to compensate, leading to a long-term mechanical breakdown.
The Deep Connection: Hip Rotators and the Pelvic Floor
Most people think of "glutes" as just the big muscles on the surface. But deep beneath those are the rotators that act like the stabilizing screws for your hip joint. When we target these deep rotators, we aren't just working the hip; we are actually engaging the pelvic floor.
Developing these muscles provides you with "dynamic stability." This means that whether you are walking up the stairs, getting out of the car, or pivoting during a game of soccer, your base remains level. Without this stability, your SI joint begins to "slosh" around, which irritates nerves and causes the body to tighten up in all the wrong places.
Why You Feel "Shaky" During Exercise
When you start working these deep muscles, you might notice something strange: you start to shake. This is actually a great sign! That shakiness is your nervous system trying to figure out how to fire muscles that have likely been dormant for years due to a sedentary lifestyle.
By holding a position until that shakiness stops, you are essentially "reprogramming" your hip to stay in its socket. This prevents the joint from sliding out and pushing on nerves, which is the secret to getting rid of that nagging lower back pain for good.
The Hip Internal Rotation Frame for SI Joint Instability
The goal of this exercise is to keep your body as still as a "stable table" while moving your legs through an axis point. We want to facilitate that rotation without letting the pelvis slosh or the back arch.
Watch as I demonstrate how to use a simple band to wake up your deep rotators and stabilize your SI joint in the video below:
Do you notice your hips feeling 'wobbly' or 'unstable' more often when you're tired?
0%Yes, definitely
0%Sometimes after a long day
0%No, I feel pretty solid
0%I'm not sure!
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