A study of the atpcp system anaerobic and the aerobic system

Overview[ edit ] The cellular respiration process that converts food energy into ATP a form of energy is largely dependent on oxygen availability. During exercisethe supply and demand of oxygen available to muscle cells is affected by duration and intensity and by the individual's cardiorespiratory fitness level. Three exercise energy systems can be selectively recruited, depending on the amount of oxygen available, as part of the cellular respiration process to generate the ATP for the muscles. They are ATP, the anaerobic system and the aerobic system.

A study of the atpcp system anaerobic and the aerobic system

Glycolysis simply means the breakdown lysis of glucose and consists of a series of chemical reactions that are controlled by enzymes. Think of the anaerobic glycolytic system as the V6 car engine opposed to the V8 of the ATP-PC system, or the huge diesel engine of the aerobic system.

The anaerobic glycolytic system produces a lot of power, but not quite as much or as quickly as the ATP-PC system. This coincides with a drop in power output as the immediately available phosphagens, ATP and PC begin to run out.

By about 30 seconds of sustained activity the majority of energy comes from the anaerobic glycolytic system.

A study of the atpcp system anaerobic and the aerobic system

At 45 seconds of sustained intense activity there is a second decline in power output. Exercise beyond this point has a growing reliance on the aerobic energy system, as the anaerobic glycolytic system starts to fatigue.

How does the anaerobic glycolytic system work? There are four key steps involved in the anaerobic glycolytic system. Initially stored glycogen is converted to glucose.

A study of the atpcp system anaerobic and the aerobic system

Glucose is then broken down by a series of enzymes. The muscle becomes increasingly acidic as more hydrogen ions are created. Lactate acts as a temporary buffering system to reduce acidosis the build up of acid in muscle cell and no further ATP is synthesised.

What is lactate and what does it do? We now know this to be incorrect. Lactate actually helps performance during intense exercise.

If a muscle cell becomes too acidic the muscle stops functioning as the enzymes that control glycolysis struggle to function in an acidic environment. The lactate is then quickly removed from the muscle cell, protecting the cell from becoming too acidic so exercise can continue for a little longer.

When this happens we are unable to sustain the intensity of exercise and have to either cease exercise or reduce the intensity. This is why even with the help of lactate we can only work at a high intensity for short periods of time. Training the Anaerobic Glycolytic System Training this system is aimed at increasing tolerance to lactate, the removal of lactate and improving the rate at which glycolysis produces ATP.

The work to rest ratios used in this type of training vary depending on the intended outcome. If you want the system to completely recover and clear the majority of accumulated lactate so you can repeatedly condition it you would use a ratio of 1: A ratio of 1: This helps to condition the body to clear get rid of lactate.

With advanced exercisers you might seriously hurt beginners with this 2:The ATP-CP system is used for efforts lasting less than 10 seconds; while the anaerobic glycolysis system powers efforts longer than 10 seconds, lasting up to a few minutes (McArdle, Katch & Katch, ).

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Aerobic glycolysis has a slow rate of ATP production and is predominantly utilized during longer-duration, lower-intensity activities after the phosphagen and anaerobic systems have fatigued. It is important to remember that all three of these systems contribute to the .

See what you know about using energy systems for physical activity by using the worksheet/quiz combo. Think of the aerobic system as the big diesel bus with a massive fuel tank as opposed to the V8 car of the ATP-PC system and the V6 car of the anaerobic glycolytic system.

While the aerobic system doesn’t produce nearly as much power as the other systems, a major feature is its capacity which is virtually limitless, as it just keeps on.

Think of the aerobic system as the big diesel bus with a massive fuel tank as opposed to the V8 car of the ATP-PC system and the V6 car of the anaerobic glycolytic system. While the aerobic system doesn’t produce nearly as much power as the other systems, a major feature is its capacity which is virtually limitless, as it just keeps on producing ATP.

With higher intensity exercise over a short time period the bodies reliance for energy will be placed on the anaerobic energy systems (ATP-PC system / anaerobic glycolytic system), whereas lower intensity exercise over a longer time places greater reliance on the aerobic energy systems.

Understanding Energy Systems: ATP-PC, Glycolytic and Oxidative - Oh My! | Breaking Muscle