Which statement best describes anaerobic exercise?

The statement that best describes anaerobic exercise focuses on short bursts of intense activity. Anaerobic exercise is characterized by high-intensity efforts that last from a few seconds to a couple of minutes, where the body's demand for oxygen exceeds the oxygen supply available. This leads to the body relying on energy sources stored in the muscles, rather than on oxygen, which is typically associated with aerobic activities.

Activities such as sprinting, heavy weight lifting, and high-intensity interval training (HIIT) are prime examples of anaerobic exercise. These activities require quick, powerful movements that can improve strength, power, and muscle mass, as well as enhance performance in other physical pursuits.

In contrast, the other statements touch upon different types of training. Improving flexibility and mobility would be more relevant to stretching or yoga practices, while steady-state workouts are associated with aerobic exercises that involve maintaining a consistent, moderate intensity over a longer period. Enhancing overall endurance is often connected to aerobic training, which develops the body's ability to sustain prolonged physical activities.