Energy Systems
Adenosine triphosphate (ATP) is the usable form of chemical energy for muscular activity. It is stored in most cells, particularly in muscle cells. Other forms of chemical energy, such as that available from the foods we eat, must be transferred into ATP form before they can be utilized by the muscle cells.
Read more about Energy Systems: The Principle of Coupled Reactions, Aerobic and Anaerobic Metabolism, ATP-PC: The Phosphagen System, Anaerobic System, Aerobic System, How They Work
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“The tendencies of the times favor the idea of self-government, and leave the individual, for all code, to the rewards and penalties of his own constitution, which work with more energy than we believe, whilst we depend on artificial restraints.”
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