The SEMG Exam

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performing an SEMGWhat Does SEMG Stand For?
SEMG stands for Surface Electromyography. SEMG is a device which measures the amount of electrical activity your muscles release when they are contracting, more commonly known as muscle tension. It is similar in function to an EKG which measures heart muscle activity.

Is it Painful?
Not at all. It is totally non-invasive does not cause pain or irritation. This makes it totally safe for infants, children, pregnant women or seniors. It simply requires the placement of small probes against the skin. The test takes less than a few minutes.

Why is Muscle Activity Important?
Muscles have a tendency to "brace" in response to spinal misalignments known as Vertebral Subluxations. These Subluxations create nerve interference which effect muscles, blood vessels and internal organs.

Why Am I Being Tested?
Studies in prestigious Chiropractic and Medical journals have shown the surface EMG (SEMG) to be very helpful in determining if your body is "tensing" in an abormal manner. This can help verify the severity of your condition and help track your Chiropractic progress.

How Does This Relate To Chiropractic?
Vertebral Subluxations reduce your body's ability to maintain optimal health. When Vertebral Subluxations are present, the nervous system is negatively effected resulting in increases or decreases in muscle activity. The SEMG shows the muscular component of the Vertebral Subluxations. The Chiropractor's job is to detect and correct these Vertebral Subluxations by a simple and effective procedure called an "adjustment".

What Does The Torso Graph Mean''
Readings in
green are considered normal, brown are borderline, and red is abnormal. Readings correlate with the presence of Vertebral Subluxations, which your Chiropractor will correct through adjustments to your spine.
The SEMG Torso Graph
How Do Chiropractic Adjustments Affect My SEMG?
The Chiropractic Adjustment has many positive benefits to your nervous system. In most cases, the SEMG normalizes and balances

The information from your SEMG will help your Doctor of Chiropractic determine the type of care best suited to your case. Follow up testing is used to monitor and evaluate your Chiropractic progress.

What is Thermography?
Nerve interference as caused by Subluxations can create an imbalance in blood flow between left and right sides of the spine. This difference in blood flow creates differences in temperature. The further the bars extend, the greater the temperature difference.

Why Do Chiropractors Use Computerized Spinal Examination?
As a modern Chiropractic Office, Dr. Sullivan is committed to using the highest quality research and clinical grade medical instrumentation available for the purpose of detecting and correcting the Vertebral Subluxation.

Computerized Spinal Examination, specifically Surface Electromyography (SEMG) is used to evaluate the relative levels of electrical activity associated with Vertebral Subluxations.

By interfering with the communication between the brain and the rest of the body, a Vertebral Subluxation produces improper electrical impulses which can lead to poor health.

This altered or abnormal (pathophysiologic) state is then recorded and displayed by Computerized SEMG. SEMG Scanning provides qualitative and quantitative data to assist your Chiropractor in Abnormal ThermoIdeal Thermodetermining which areas / levels of the nervous system are being adversely affected by Vertebral


Frequently Asked Questions
Chiropractic Technology
To See is to Know
" The Nerve Doctor "
The First Visit
The SEMG Exam
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