What term describes exercise that occurs without oxygen?

The term that describes exercise that occurs without oxygen is "anaerobic." Anaerobic exercise refers to high-intensity activities that are performed in short bursts, such as sprinting or weightlifting, where the energy demand exceeds the oxygen supply available to the muscles. During anaerobic exercise, the body relies on energy sources stored in the muscles rather than oxygen, which leads to the production of lactate.

This type of exercise is important for building strength, power, and muscle mass, as it promotes muscle adaptation and increases metabolic rates. Understanding anaerobic exercise is critical for developing appropriate fitness programs, especially for individuals looking to improve their strength and performance in short-duration activities.