Which activity is a clearly aerobic form of exercise?

Which activity is a clearly aerobic form of exercise?

• A. Sprinting 100 meters
• B. Powerlifting attempt
• C. Distance running (e.g., 5k)
• D. High-intensity interval sprints

Answer: (C)

Distance running engages the body's aerobic energy system, meaning it relies on oxygen to fuel activity that can be sustained for a longer duration. A 5k is typically performed at a steady, moderate pace that keeps you in an aerobic state, supporting continuous leg muscle work over several minutes and improving cardiovascular endurance. The other options are short, high-intensity efforts that depend mainly on anaerobic energy systems (phosphagen and glycolysis) and are not primarily oxygen-driven. Sprinting short distances uses stored energy for a brief burst, powerlifting is all-out effort with little time for oxygen delivery, and high-intensity interval sprints mix bursts of anaerobic work with recovery rather than staying in the aerobic zone. So, distance running is the clearly aerobic form.

Distance running engages the body's aerobic energy system, meaning it relies on oxygen to fuel activity that can be sustained for a longer duration. A 5k is typically performed at a steady, moderate pace that keeps you in an aerobic state, supporting continuous leg muscle work over several minutes and improving cardiovascular endurance. The other options are short, high-intensity efforts that depend mainly on anaerobic energy systems (phosphagen and glycolysis) and are not primarily oxygen-driven. Sprinting short distances uses stored energy for a brief burst, powerlifting is all-out effort with little time for oxygen delivery, and high-intensity interval sprints mix bursts of anaerobic work with recovery rather than staying in the aerobic zone. So, distance running is the clearly aerobic form.