Definitions

1. noun

A high-energy compound found in muscle tissue that is rapidly broken down to provide immediate energy during intense, short-term activity, also known as phosphocreatine.

“The phosphagen system is responsible for the initial burst of energy during a sprint.”

2. noun

A muscle’s ability to rapidly generate energy for short periods of time.

“Her phosphagen capacity allowed her to run the 100-meter dash in record time.”