What energy systems are primarily utilized during CrossFit workouts?

The energy systems primarily utilized during CrossFit workouts encompass the phosphagen, glycolytic, and oxidative systems. Each of these systems plays a critical role in providing energy, depending on the duration and intensity of the workout.

The phosphagen system, also known as the ATP-CP system, is the fastest and most immediate source of energy, used during high-intensity, short-duration activities lasting about 10 seconds or less. This is ideal for quick, explosive movements, such as sprinting or heavy lifting.

The glycolytic system, also known as anaerobic glycolysis, kicks in for moderate to high-intensity efforts that last from about 10 seconds to 2 minutes. It generates energy without requiring oxygen but results in the production of lactate, which can contribute to fatigue.

The oxidative system, or aerobic system, is utilized during lower-intensity activities that last longer than about 2 minutes. It relies on oxygen to produce ATP and is essential for sustained efforts, such as longer workouts or mixed-modal CrossFit sessions.

In CrossFit, workouts typically involve a combination of these energy systems because they are designed to be high-intensity and varied, fostering explosive power as well as endurance. The unique structure of CrossFit often demands quick bouts of effort