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Anaerobic and aerobic Energy Pathways - BrianMac

High-energy phosphate resynthesis from anaerobic glycolysis in frog gastrocnemius muscle

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Understanding energy systems training - human …

Carbohydrate (intramuscular glycogen) is the only macronutrient that generates ATP anaerobically hence it is the next fastest energy source needed to fuel initial energy demands. ATP resynthesis from the anaerobic catabolism of glycogen is termed glycolysis.

Cellular Respiration is the process that takes place in cells to convert food into energy

Wilmore et al, 2003 Wilmore et al, 2003 Anaerobic ATP Resynthesis Depletion and Feedback Inhibition ATP hydrolysis is the reaction by which chemical energy that has been stored and transported in the high-energy phosphoanhydridic bonds in ATP (Adenosine triphosphate) is released, for example in the muscles, to produce work (Walsh, 2002).

Work and Energy in Muscles - MedBio

Energy Systems; Resistance Training Flexibility The ATP-PC system is an anaerobic The breaking apart and resynthesis of phosphate molecule produces.

The breakdown of PC does not require the presence of oxygen, therefore the ATP-PC system is known as an anaerobic system.

This energy system is for immediate activity for activities of short duration (lasting 0-10 seconds), high intensity & explosive activities, such as the 100m sprint, therefore fast twitch muscle fibres are recruited.

The advantage of this system is that it is immediate/fast rate The disadvantage is that the system is limited by the amount of PC stored in the muscles. Once PC begins to deplete at the muscle, ATP must be resynthesised from another substance.

Several features of these reactions and skeletal muscle cells make glycolysis a fast and highly controlled step in ATP resynthesis. For example, phosphofructokinase (PFK) is one of the important regulators of the rate of glycolysis (often called a “rate limiting enzyme”). The activity of PFK increases when energy is needed, as ATP levels are low and AMP levels are high, and PFK activity decreases otherwise. Fast-twitch muscle fibers contain relatively large quantities of PFK, making them ideally suited for generating anaerobic energy via glycolysis.

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You have free access to this content ATP and heat production in human skeletal muscle during dynamic exercise: higher efficiency of anaerobic than aerobic ATP resynthesis

Anaerobic resynthesis of atp
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