Activation of muscle

This is a voluntary muscle contraction results in muscle group or joint motion (s). muscle activation in the electrodiagnostic examination is similar to activation in the test manual muscle during clinical examination. This is due to maximum strength determines the strength. The EMG, however, the emphasis is on minimum recruitment through graduation, activation of durable, voluntary muscle.

Respect progressive EMG activation is known as recruitment. maximal activation was mentioned as a model intervention. Motor unit action potential (MUAP) analysis, this observation is MUAP discharges at a relatively low level of activation that is critical to measure their properties (eg amplitude, area, duration, phase, etc.). Hence the emphasis on EMG, the patient's ability to achieve and maintain a minimum control activation of specific muscles to facilitate effective.

In this program, typically in search of the muscles in this program based on activation. So it is important for the insertion, origin and action understanding. Moreover, the most important aspects of their origin, and data entry, along with recommended methods of activation. Many muscles have more than one action or direction of joint movement. Activation of the method used in this text is usually the main action of a muscle (or action that is simple with minimal movement of the limbs used).

Some patients may have problems with the activation of muscle (s). The analyst should then literally "hand" to help them resist. This can be avoided in most cases, the speakers when a free hand to manipulate the settings on the electromyograph. It is important to perform special studies such as quantitative MUAP analysis and single fiber EMG, which won the minimal muscle activation is required. Useful "tricks" to activate (eg, adductor longus eyes, triangle, frontalis), where this is possible. Note that if the examiner touches the patient with one hand without gloves, interference may be experienced. Use direct eye contact with the skin to prevent removal of the patient often.

As in the clinical examination, needle electrode examination must be changed if the patient has significant weakness. Tests in this video is simple, where the patient is thought to have forced at least 3 degrees (Medical Research Council rating system, guarantors Brain, 2000). When you can be a major weakness or complete paralysis is currently reviewing other changes necessary. In such cases, the electrodiagnostic consultant with skills in navigating through the subcutaneous tissue and muscle electrodes.

It could be argued that the location of the muscle can be made only on the surface landmarks and anthropometric measurements in relation to the unnecessary activation localization. No matter how careful location of any strategy, muscle activation is still required in the production of MUAP. Where they can atrophy, or muscle weakness occurred in subacute denervation and chronic care in interpretation must be done, especially with the deep muscles and landmarks change as a result of reduction in muscle mass.

In some cases, particularly in large limb muscles, the screen is "silent", despite what appears clinically appropriate patient activation. Trainee Financial usual response is even greater efforts to find patients, all with no result other than the patient's fatigue and discomfort. This phenomenon is usually due to misunderstanding the instructions to activate the Commissioner. The patient, a different muscle activation to achieve the same desired result without the additional discomfort of needle electrodes (eg, knee flexion in the brachioradialis where the electrodes in the biceps brachii). If the needle electrode is placed accurately and precisely maneuver activation of MUAP discharges ready for publication at a lower intensity level. activation of compensatory maneuvers patient, however, can important data for the localization of pathological process (eg use of long extensor palmar abduction of thumb to run, when the abductor pollicis brevis is bad!)