ATP-PC System
Duration: 3-10 seconds
Intensity: High
Site: Sarcoplasm
Sport: 100m sprint
Fuel: phosphocreatine
Anaerobic Glycolysis
Duration: 10s - 3 mins
Intensity: High
Site: Sarcoplasm
Sport: 400m
Fuel: Glycogen
Aerobic Glycolysis
Duration: 3 mins+
Intensity: Low
Site: Mitochondria
Sport: Marathon