Energy Systems - How They Work

How They Work

Aerobic and anaerobic systems usually work concurrently. When describing activity it is not which energy system is working but which predominates.

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Famous quotes containing the word work:

    Our life of poverty is as necessary as the work itself. Only in heaven will we see how much we owe to the poor for helping us to love God better because of them.
    Mother Teresa (b. 1910)