Blood Flow Restriction (BFR) is a training technique that involves applying a specialized band or cuff around a limb to partially restrict blood flow during exercise. This method allows individuals to perform low-intensity workouts while still achieving muscle growth and strength gains similar to those from high-intensity training. BFR is often used in rehabilitation settings to help patients recover from injuries or surgeries. By limiting blood flow, the body responds by increasing the production of growth hormones and enhancing muscle protein synthesis, making it an effective tool for both athletes and those undergoing physical therapy.