Principle

With the exception of the heart muscle, the contractions of striated muscles can be controlled at will. This characteristic enables the observation of the activities of individual muscle groups. An electromyogram (EMG) can be used to measure (record) the electrical activity (i.e. the sum of the action potentials) of a muscle or even of several muscles on the skin surface when they contract. For an electromyogram, the electrical activity of a muscle is recorded in the relaxed state as well as during contractions of varying strength.

Benefits


No danger due to electrical energy thanks to wireless operation

Data acquisition with tablets possible

Simple operation of the app, therefore appropriate for all education levels

Site-independent measurements possible in tablet mode


Tasks


Record an EMG of your own biceps muscle while performing several contractions

Record an EMG of your own calf muscle while performing several different movements


What you can learn about


Electromyogram

Muscle contractions

Biceps

Muscle potentials

Compound action potentials