The patient initially had a significant limitation in hip flexion ROM (struggling to reach 90 degrees) and restricted Internal Rotation (IR). After performing the isometric holds:
Improved Hip Flexion: We were able to passively achieve above 90 degrees of hip flexion with much less effort (as shown in the video).
Improved Hip Internal Rotation (IR): This secondary finding is huge! Improving IR is often a major goal in hip rehab, and seeing it change so rapidly suggests a powerful neurophysiological effect. Changes in hip IR and flexion are huge for closed chain loading.
This reinforces the concept that what feels like a structural "block" or "tightness" is often a motor control inhibition or a protective pattern related to a lack of local muscle capacity or simple how I put it - inability to load.
By using a simple, low-threshold isometric, we are:
Modulating pain by providing a strong, non-threatening input.
Re-educating the motor program for the hip flexors, which subsequently reduces protective tension/guarding in the joint capsule and surrounding muscles.
The take-home: Don't just stretch! Using isometrics to improve the capacity of the muscles around the hip—even in a seemingly "tight" joint—can be your fastest route to increasing both flexion and IR ROM and improving functional movements like squatting!
What's the most surprising ROM change you've seen after using an isometric? Share your story! 👇
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