Energy Systems in Sport

Front

ATP-PC system

Back

Immediate energy system using phosphocreatine

Front

Glycolytic / Lactic Acid System

Back

Anaerobic glycolysis producing lactic acid

Front

Aerobic System

Back

Energy system using oxygen for long-duration activities

Front

ATP-PC system duration

Back

2-10 seconds

Front

Glycolytic / Lactic Acid System duration

Back

10-180 seconds

Front

Aerobic System duration

Back

Over 2 minutes

Front

ATP-PC system fuel

Back

Phosphocreatine

Front

Glycolytic / Lactic Acid System fuel

Back

Glycogen / Glucose

Front

Aerobic System fuel

Back

Glycogen

Glucose

Fats

Front

By-product of Lactic Acid System

Back

Lactic acid