Which energy system provides the majority of energy in a 2000 meter rowing race?

Which energy system provides the majority of energy in a 2000 meter rowing race?

• A. Anaerobic
• B. Aerobic
• C. None
• D. Both

Answer: (B)

A 2000-meter rowing race is long enough that the body's energy needs are met mainly through aerobic metabolism. The aerobic system uses oxygen to convert carbohydrates and fats into ATP in the mitochondria, and it can sustain energy production for several minutes—matching the typical race duration for competitive rowers. At the start, there’s a brief oxygen deficit, so the anaerobic systems contribute a small amount to get moving, and there’s often a final push that draws on anaerobic reserves as well. But over the majority of the race, oxygen delivery and utilization keep pace with demand, making aerobic metabolism the dominant source of energy. Training also improves VO2 max and lactate threshold, allowing rowers to maintain a higher pace mainly through aerobic energy.

A 2000-meter rowing race is long enough that the body's energy needs are met mainly through aerobic metabolism. The aerobic system uses oxygen to convert carbohydrates and fats into ATP in the mitochondria, and it can sustain energy production for several minutes—matching the typical race duration for competitive rowers. At the start, there’s a brief oxygen deficit, so the anaerobic systems contribute a small amount to get moving, and there’s often a final push that draws on anaerobic reserves as well. But over the majority of the race, oxygen delivery and utilization keep pace with demand, making aerobic metabolism the dominant source of energy. Training also improves VO2 max and lactate threshold, allowing rowers to maintain a higher pace mainly through aerobic energy.