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Advantages of EMG sensor | Disadvantages of EMG sensor

This page covers advantages and disadvantages of EMG sensor and its basics. It mentions benefits or advantages of EMG sensor and drawbacks or disadvantages of EMG sensor.

In continual muscle contraction, more than one motor devices are firing repetitively during contraction of the muscle. The energy of muscle contraction is associated with number of motor units present inside the muscle. EMG recorded throughout the muscle contraction is seen as burst of spike like indicators. The burst duration is set identical to duration of the muscle contraction. The strength of striated muscle contraction is proportional to quantity of electrical activity in the muscle without delay.

What is EMG sensor?

The sensor which provides electromyogram is known as EMG sensor. EMG measures electrical interest of muscle groups at rest and in the course of contraction. This sensor measures filtered and rectified electrical activity of muscle. The typical features of EMG sensor include adjustable gain, smaller form factor and is full integrable.

EMG sensor

The EMG is used as diagnostic tool to identify neuromuscular sicknesses, to assess lower back pain, kinesiology etc. EMG alerts are used in lots of scientific and biomedical applications. EMG signals are used as manage sign for prosthetic devices.

It consists of three electrodes which are connected as shown in the figure. EMG sensor module can be purchased from tomson electronics from cooking hacks >> website.

Benefits or advantages of EMG sensor

Following are the benefits or advantages of EMG sensor:
➨The EMG sensor based on surface electrodes is very quick and easy to apply.
➨No medical supervision needed and does not require certification.
➨It offers minimal discomfort.
➨Fine wire electrodes used in EMG sensor records single muscle activity. It provides access to deep musculature.
➨It is extremely sensitive.
➨EMG provides continuous and quantitative data. Multi-channel EMG can identify muscular bottle necks.
➨EMG data allows detection of muscle fatigue at early stages.

Drawbacks or disadvantages of EMG sensor

Following are the drawbacks or disadvantages of EMG sensor:
➨It is used for superficial muscles only.
➨No standard electrode placement.
➨May affect movement patterns of subject.
➨Detection area may not be representative of the entire muscle.
➨Cross talk is concern.
➨Limitations with recording dynamic muscle activity.

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