Electrostimulation is a way to stimulate nerves and muscles through electrical stimuli. You do this by placing electrodes on the skin that are connected to the electrostimulation device.
 
Strengthening and muscle recovery: EMS mode
EMS (Electrical Muscle Stimulation) ensures that physical activity is simulated. How? By electrical pulses that are used to make your muscles contract extra. This is usually controlled by your brain.
 
Reduce the pain: TENS mode
TENS (Transcutaneous Electrical Nerve Stimulation) limits pain signals to your brain through small electrical pulses. In addition, it stimulates the production of endorphins, which naturally take away pain. Blood circulation is also improved. This means that TENS doesn't directly remove the cause of the pain, but it can relieve it.