Heart Rate (numbers motivate)

After reading all the articles you may notice Heart Rate is needed. Since you can't afford a watt meter you'll need to estimate "your" zones. There are many ways to do this, here's one. CALULATOR However, HR is a lagging, fluxuating, measure. In fact everyone's heart is different, and acts different pehaps daily. Investigate you, learn.

Update: see "e-tips" link on right side of page for more

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