Electrical Stim uses mild currents to help relax muscles, reduce swelling, and relieve pain. Often this therapy is used at the same time as heat or ice. And don’t let the name scare you this isn’t Russian stim*.
*Russian Stim isn’t scary either, it just sounds that way. Russian stim utilizes electrical impulses on opposite muscle groups (think biceps vs. triceps) to help muscles engage during workout sessions. The concept is that the electrical impulse will help the muscle to fully contract while lifting which helps to fully work each targeted muscle. It’s effectiveness is debated when compared to other workout methods, but it is interesting.