The supine position is one of the most commonly used body positions in medical and therapeutic practices. It involves lying flat on the back with the face and torso facing upward. There are different types of supine position used depending on the purpose, such as standard supine, dorsal recumbent, and hook-lying. In the standard supine, the body lies flat with legs extended, while in the dorsal recumbent, the knees are bent and feet rest flat on the surface.