Warming up consists of gradually increasing the body's temperature and intensity of physical activity through light cardio, joint mobility exercises, stretching, and sport-specific movements. This prepares muscles, tendons, and ligaments to avoid injuries during exercise by increasing blood flow, flexibility, range of motion and muscle control. A proper warm up includes stretching major muscle groups like the calves, hamstrings, quadriceps, hips, shoulders, neck and joints like wrists, elbows and ankles. It also involves activation exercises like running in different ways such as side shuffling, backwards running and high knees. Sample warm up games described are Pacman, where one person is 'it' and must tag others, and Cops and Rob