Pumping refers to the process of moving fluids, such as liquids or gases, from one location to another using a mechanical device called a pump. This technique is commonly used in various applications, including water supply systems, irrigation, and industrial processes. Pumps can be powered by electricity, engines, or manual operation, depending on the specific needs of the task. In the context of fitness, "pumping" often describes the sensation of increased blood flow to muscles during exercise, particularly weightlifting. This temporary swelling occurs as the body delivers more oxygen and nutrients to the working muscles, enhancing performance and promoting muscle growth. The term is frequently associated with bodybuilding and strength training routines.