Understanding the Three Energy Systems

What is the primary source of energy for the body?

• Food

• Sunlight

• Water

• Oxygen

What is the scientific term for the energy used by the body?

• Glucose

• Adenosine Triphosphate

• Lactic Acid

• Oxygen

Which energy system is used for short, powerful bursts of exercise?

• Glycolytic System

• Aerobic System

• Lactic Acid System

• ATP-PC System

How long does the ATP-PC system typically last?

• Less than 10 seconds

• 10 to 20 seconds

• 3 minutes to an indefinite amount of time

• 30 seconds to 3 minutes

Which energy system is responsible for the burning sensation in muscles during medium-length exercise?

• Aerobic System

• Lactic Acid System

• ATP-PC System

• Phosphagen System

What is an example of an activity that primarily uses the Lactic Acid system?

• Swimming

• Weightlifting

• 100-meter sprint

• Marathon running

Which energy system can theoretically last indefinitely with proper fuel and no injuries?

• ATP-PC System

• Lactic Acid System

• Aerobic System

• Anaerobic System

Why does the Aerobic system take longer to warm up compared to the other systems?

• It requires more muscle activation

• It depends on external factors

• It relies on oxygen

• It uses more energy

How long does the Aerobic system last?

• 30 seconds to 3 minutes

• Less than 10 seconds

• 3 minutes to an indefinite amount of time

• 10 to 20 minutes

What is an example of an activity that primarily uses the Aerobic system?

• Circuit training

• Marathon running

• Weightlifting

• 100-meter sprint