1 | ACTIVITY 1 Directions: Below is a chart summary of energy system, complete the chart by writing the important details on the blanks provided. ENERGY SYSTEM FUEL USED Phosphocreatine Lactic Acid Aerobic (stored in the Muscle) (stored in the muscle) (stored in the adipose tissue) RATE OF ATP PRODUCTION Very rapid By-product is lactic acid which can lead to muscular fatigue Slow. CAPACITY OF ENERGY SYSTEM Very limited ATP production MAIN USE Limited ATP production Short Duration activities 5-15 seconds High Intensity Short duration activities Moderate to vigorous ATP intensity production activities, u