How They Work
Aerobic and anaerobic systems usually work concurrently. When describing activity it is not which energy system is working but which predominates.
Read more about this topic: Energy Systems
Famous quotes containing the word work:
“You say that you do not succeed much. Does it concern you enough that you do not? Do you work hard enough at it? Do you get the benefit of discipline out of it? If so persevere. Is it a more serious thing than to walk a thousand miles in a thousand successive hours? Do you get any corns by it? Do you ever think of hanging yourself on account of failure?”
—Henry David Thoreau (1817–1862)
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