Muscle Metabolic Systems in Exercise
The same basic metabolic systems are present in muscle as in other parts of the body; these are discussed in detail in Chapters 67 through 73. However, special quantitative measures of the activities of three metabolic systems are exceedingly important in understanding the limits of physical activity. These systems are (1) the phosphocreatine-creatine system, (2) the glycogen-lactic acid system, and (3) the aerobic system.
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