Energy Systems

1. The main by-product of the seconnd energy system
4. The aerobic system provides energy for approx ____ to three hours before refuelling needs to occur
5. The point up to which athletes can tolerate and process lactic acid
8. The system that fuels most of the energy requirements needed for long duration activities such as marathons
9. The energy system that is used immediately for high intensity actions that are short in duration
12. The main by-products of the aerobic system are water and ________ ________
13. Fatigue, muscle pain and ________ are all symptoms of when the levels of lactic acid get too high in the body and it is unable to clear it out
15. This fuel is only used by the aerobic system in extreme cases of prolonged exercise, such as an ultra marathon

2. The fuel that is used to produce more ATP in the most immediate energy system
3. The lactic acid system uses ________ to help remake more ATP, which can be found mostly in skeletal muscle
4. The lactic acid system will provide energy for approx two to ______ minutes of high intensity activity (75-95% max effort)
6. Intensity and ________ are the two main factors that determine which energy system dominates over the other two during sport and exercise
7. This is a reserve fuel for the aerobic energy system
10. The energy pathway that contains two systems and does NOT require oxygen to produce ATP
11. This is used by the aerobic system to convert glycogen into ATP
14. The ATP-CP system only provides energy for approx ____ to twelve seconds of high intensity activity