The surface electromyography tester is mainly used for scientific research work in various colleges and universities, as well as physical fitness monitoring systems for athletes and students. Many people pay attention to the surface EMG tester parameters, the surface EMG tester, and the surface EMG tester manufacturers. So which company's surface EMG has an advantage in terms of performance and price. What is the difference between electromyography (dEMG) and surface electromyography (sEMG)? Let's take a look.

We all know that the contractile force of muscle is the resultant force of contraction of single muscle fibers controlled by motor neurons. Therefore, surface electromyography (sEMG) is actually a combined signal of time and space composed of electrophysiological signals of a single motion unit. It reflects the electrophysiological properties of the entire muscle (all muscle fibers involved in contraction). Developed by Delsys of the United States and sold to the world, Century Tianhong Group, as the general agent of Delsys in China, will provide all-round technical support and training services to help users to conduct scientific research and exploration.

Unlike traditional surface electromyography, dEMG can more deeply explore the bioelectrical signal characteristics of individual motion units that control muscle activity, including motion unit activity based on recruitment timing, one-by-one display of single motion unit discharge timing, and motion unit recruitment. And the characteristics of the change in the state of the recruitment, as well as the discharge rate (pulse times/s) of a single motion unit over time, the muscle force contraction curve, and the like. Therefore, in comparison, dEMG can explore the details of muscle contraction activity more deeply than conventional sEMG, and can more clearly reflect the discharge characteristics of a certain moving unit, and explore the characteristics of cell functional level more deeply than sEMG.

Comparison of Analytical Electromyography (dEMG) and Surface Electromyography (Based on Bagnoli)

index

dEMG

sEMG(Bagnoli)

Recording signal

Discharge of the moving parts of the test site

Integrated signal of muscle fiber electrophysiology at the test site

Sampling Rate

2k

1k

Physiological significance

Electrophysiology of a single motion unit

Sequence of activities of the motion unit

Discharge characteristics of muscle fibers in the test site

Number of channels

Maximum 2 skeletal muscle dEMG signals

And 4 skeletal muscle sEMG signals

Usually 8-16 pieces of skeletal muscle sEMG signal

Occupied channels / per muscle

4 channels

1 channel

Acquisition/analysis software

EMGwork-dEMGTM

EMGwork-Workflow

Environment Pro

The superior performance of dEMG can help users to conduct research in sports control, exercise physiology, muscle fatigue, biofeedback therapy, human kinematics, neuro-muscle system diseases, rehabilitation and many other fields. At present, the equipment has been developed by Delsys of the United States and sold to the world. Century Tianhong Group, as the general agent of Delsys in China, will provide all-round technical support and training services to help users to conduct scientific research. Research and exploration. Surface EMG Tester Parameters|Quotes|Do you know the relevant information of the manufacturer? For more information, please visit the official website or scan the QR code for consultation.

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