Transcutaneous electrical nerve stimulation (TENS) machines and electrical muscle stimulators (EMS) are both devices used for therapeutic purposes, but they work in slightly different ways.

While both TENS machines and EMS devices use electrical stimulation, they serve different purposes and target different physiological mechanisms. TENS focuses on pain relief by affecting the nerves, while EMS is geared towards muscle stimulation and rehabilitation. It’s important to use these devices under the guidance of a healthcare professional to ensure safe and effective treatment.