What is the definition of "anaerobic"?

• A. With oxygen
• B. Without oxygen
• C. Low intensity
• D. Short duration

Answer: (B)

The definition of "anaerobic" refers specifically to processes or activities that occur in the absence of oxygen. This term is commonly used in the context of exercise and metabolism. During anaerobic activities, the body relies on energy sources stored in muscles without needing oxygen, which enables this type of exercise to be performed at high intensity for a short duration, such as sprinting or weightlifting. The body uses pathways that do not involve oxygen, such as glycolysis, to produce energy quickly. The emphasis on "without oxygen" is crucial, as it distinguishes anaerobic activity from aerobic exercise, which requires oxygen and occurs during prolonged, lower-intensity activities. Understanding this concept is essential for distinguishing between different types of physical exercise and their physiological effects on the body.