Phosphate energy system
For can be used. This energy system requires about 30 to 90 seconds of rest for a full recovery this is due to the absence of oxygen which is a disadvantage because time is needed to recover. Phosphocreatine, also known as creatine phosphate, is an energy source for muscle contraction naturally present in the muscle tissue of humans, it allows the muscles to have explosive power as it causes the muscles to contact very quickly, but it can only last between eight to 12 seconds.
Lactic acid energy system
This is the short-term energy system. To meet energy requirements for higher intensity over a long period such as sprinting in football so this is a big advantage, ATP can be made by the partial breakdown of glucose and glycogen this is an anaerobic process and therefore is not sustainable over a long duration. Around 60 to 90 seconds of maximal work is possible using this system this is a disadvantage due to a short period of work allowed.
Aerobic energy system
This is the long-term energy system, glycogen and fatty acids break down to yield large amounts of ATP. When playing rugby they need to use this energy system cause they are working for long periods of time without rest as long, continuous and moderate exercise produces energy using this system the advantage if this is that it can keep the athlete working for long periods of time, a negative is the recovery time as it can take hours to have a full recovery depending on fitness levels. The Krebs cycle is the sequence of reactions by which most living cells generate energy during the process of aerobic respiration. It takes place in the mitochondria, using up oxygen and producing carbon dioxide and water as waste product. An electron transport chain is a series of complexes that transfer electrons from electron donors to electron acceptors so it can release energy from the ATP.
ATP stands for adenosine triphosphate and it’ s how we use energy, ATP is the energy currency of life and is in every cell of the body. In order for us to blink and think, we need the energy that ATP supplies to our cells. ATP is responsible for the energy needed to perform muscle contractions, nerve impulses, metabolism functions, and many other body functions. ATP gets its energy by breaking down food. It is created in the mitochondria to be readied for the cells of the body. The energy used by human cells requires the hydrolysis of 100 to 150 moles of ATP daily which is around 50 to 75 kg. A human will typically use up to their body weight of ATP over the course of the day.