Creatine phosphate potassium salt, also known as phosphocreatine, is widely used in the field of sports nutrition and muscle performance enhancement. It serves as a rapid source of energy for muscle cells, particularly during high-intensity, short-duration activities such as weightlifting or sprinting. By replenishing ATP levels, it helps delay muscle fatigue and improves recovery times. Additionally, it is utilized in medical research to study muscle metabolism and conditions related to energy deficits, such as muscular dystrophy or heart failure. Its role in supporting cellular energy makes it valuable in both athletic and clinical settings.