Original Posting: 12/27/1999
Q: How do I know if I'm exercising hard enough to get aerobic benefits?
A: I like to do the sing test. Sing "America the Beautiful" while you exercise. It should sound something like this: "Oh beautiful (breathe) for spacious (breathe) skies, for amber (breathe) waves of grain (breathe)."
You should need air every two or three words. If you can belt out five or six words before inhaling, you're going too slowly. Speed up! If you need several breaths between words, slow down! You're working too hard!