There are three major energy systems used in a touch soccer game which consist of the creatine phosphate (ATP PC) system, the lactic acid system, and the aerobic system. Each system plays a vital role during the game. Every muscle in the body requires energy to perform all movements, and to do so, energy is produced by the breakdown of a molecule called adenosine triphosphate (ATP). ATP is found in all cells and is a chemical form of muscle activity and primarily performs all functions of the human body. Contains 3 phosphate groups and adenosine. ATP is stored in the muscles and lasts about 10-30 seconds. Carbohydrates, fats and proteins are all producers of ATP from the food we eat; however creatine phosphate is also a high-energy compound found in cells. These three chemical reactions are conducted to continue muscle work. The first system used in a touch football match is the ATP PC system. This system is stored in the muscles and used for short periods of up to 10 seconds and does not require oxygen, so it is anaerobic. ATP lasts about 3 seconds, so Creatine Phosphate (CP) will continue until all the ATP PC energy is used up. The use of ATP is high intensity and would typically be used in a 50 meter sprint or touch pass. Once CP energy is depleted, the body switches to the lactic acid system. This is due to the breakdown of glucose, resulting in the production of lactic acid. The lactic acid system is an anaerobic energy system, lasting about 30 seconds to 2 minutes, and is the conversion of glycogen to glucose. In relation to a touch football match, the lactic acid system could be used during a fast play, as the movements required are a... middle of paper... or a weave to avoid oppositions, or sometimes when recovering quickly from a collision or fall. So in terms of fitness testing I'm doing quite well, however there are some areas that need to be paid attention to. In a tap game I would assign myself to the link position for a couple of reasons. The links are positioned between the midsection and the wings and require many attributes to perform consistently. The reason I think I'm best suited for this position is because I'm able to communicate with my teammates when I'm on defense making sure the team is properly aligned and no gaps are created. My lactic acid system works very well throughout the match during intense ball movement. I am able to generate enough speed, find gaps and apply enthusiasm to perform to the best of my ability and hopefully score a try or set one up.