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New Research on Leg Checks: How EPIC Stacks Up Against General Protocols

Originally published: 2025-04-08

Chiropractors rely on leg checks as a fundamental tool for assessing subluxation and its potential impact on the nervous system. But how reliable are these checks? A new study, conducted at Sherman College of Chiropractic and published in the Journal of Upper Cervical Chiropractic Research, put two different leg check methods to the test—the General protocol and the EPIC protocol—to determine which was more effective at detecting potential nervous system dysfunction.

Who Conducted the Study?

The research was led by Dr. Daniel Becker, DC, MEd, Dr. Christine Theodossis, DC, Dr. Mitzi Schwartzbauer, DC, and Dr. Alan Brewster, DC, all faculty members at Sherman College of Chiropractic. Their goal was to evaluate how well each leg check method correlated with neurological dysfunction, measured through a standard proprioception test.

What Did the Study Examine?

The study compared two different protocols for assessing leg length inequality (LLI)—a common chiropractic tool for detecting spinal misalignments. The General protocol and the EPIC protocol were both used to assess 42 chiropractic students over three separate days. On the final day, participants also completed a head repositioning test, a widely recognized measure of cervical proprioception—or the body's ability to accurately sense head and neck position.

Where Was the Study Conducted?

The research took place at Sherman College of Chiropractic, a leading institution dedicated to advancing chiropractic education and research.

Why Is This Important for Chiropractors?

As chiropractors, we understand that leg checks are a crucial part of determining whether a patient is subluxated. This study highlights why the method used matters—not all leg checks yield the same results.

Key Findings:

● The EPIC protocol was more effective at identifying patients with potential nervous system dysfunction.

● Students who were classified as “in pattern” under the EPIC protocol performed worse on the head repositioning test, suggesting a stronger connection between EPIC's findings and neurological issues.

● The General protocol did not show the same correlation, suggesting that it may not be as sensitive in detecting subluxations that impact nervous system function.

What This Means for Chiropractic Practice

This research reinforces the need for precise, reliable methods in chiropractic assessments. The EPIC protocol may offer a more accurate way to detect subluxations that are interfering with nervous system function—helping chiropractors deliver more effective care.

As we continue to refine our assessment tools, research like this helps chiropractors make better-informed decisions about how to evaluate and adjust patients. Further studies will help deepen our understanding of leg checks and their role in improving patient outcomes.

Final Thoughts

For chiropractors dedicated to providing the best possible care, this study is a reminder that not all leg check methods are created equal. By staying informed on the latest research, we can continue to refine our techniques and ensure that our assessments lead to optimal nervous system function and better patient health.

For a more detailed look at this research, CLICK HERE for the full study published in the Journal of Upper Cervical Chiropractic Research.

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