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Old December 9th 14, 08:15 PM posted to rec.skiing.nordic
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Default Training polarization (Stephen Seiler)

On Tue, 09 Dec 2014 18:05:40 +0100
Terje Henriksen wrote:

At that point, Dr. Fox suggested a formula: maximum heart rate
equals 220 minus age."

http://www.nytimes.com/2001/04/24/he...hallenged.html


That rule has usually worked well for me up throught the years.


The point is, to the extent it works for any individual, it is a
combination of coincidence and self reinforcement. That is, if it
hadn't worked, you would have sought information elsewhere.

Gene
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