Pain Blocking (Analgesia) Low-frequency currents activate the nerves that help you feel things, which can block the pain signals going to your brain. This gives you quick relief and lets you do mobility exercises comfortably. Muscle Re-Education & Strengthening Stronger electrical currents stimulate the nerves that control muscles, causing them to contract. This is important in p... https://veritashospitals.com/physiotherapy/electrotherapy/