배영, or "backstroke," is a swimming style where the swimmer lies on their back and uses an alternating arm movement to propel themselves through the water. The legs perform a flutter kick, which helps maintain balance and speed. This stroke is one of the four competitive swimming styles recognized by Fédération Internationale de Natation (FINA). In competitions, swimmers start from the water and must touch the wall at the end of the race while on their back. Olympic Games feature backstroke events, showcasing athletes' skills and techniques. Proper technique is essential for efficiency and speed in this unique swimming style.