Electromyography measures the health of a patient’s muscles and nerve cells . Through this procedure, nervous, muscular and transmission dysfunctions between nerves and muscles are diagnosed.
Electromyography uses small electrodes, which are inserted into the muscle through a needle or through patches attached to the skin , to determine its activity. The result will give some graphs, sounds and figures that a specialist will later use to diagnose.
When is an electromyography needed?
As has been said, electromyography will allow us to know how the muscles and nerves of the body are and the communication between them. An electromyography will determine if the muscles respond in a timely manner to nerve impulses.
Some symptoms to know when you need an EMG are:
- Has had persistent muscle weakness
- If you have had tingling in your arms, hands, legs, hand, feet or face
- If you have cramps, muscle twitches, or twitches often
- If any of your muscles become paralyzed
Electromyography will help determine if your nerve and muscle conduction levels are normal or abnormal.
- normal. Electromyography will indicate that the electrical activity is nil when the muscle is at rest : there is a smooth line recording when any muscle contraction is made. In this case, it is concluded that the nerves have a normal speed ; the brain correctly translates pain, touch, vibration and temperature.
- abnormal . In this case, the electromyography shows that the muscle at rest has a nerve problem . The waves are abnormal in muscle contraction. This is how diseases such as herniated discs, multiple sclerosis and any type of inflammation are diagnosed. In general, nerve impulses tend to be slower, which can result in nerve damage.
A study has determined that thanks to electromyography a better muscular rehabilitation can be established. The diagnosis allows the doctor to determine the best training plan for the associated injuries or pathologies.
As for the results, it may take two to three days to provide a comprehensive report. Electromyography is complemented by other studies, in which the physical and neurological health of the patient has been examined.