Thread: PMAX : "Ditch the classic heart rate formula"?
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Old 08-11-07 | 05:16 PM
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dirtypete
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PMAX : "Ditch the classic heart rate formula"?
very interesting article about interval training - not sure if this has been posted be4, apologies if it has...

http://www.pponline.co.uk/encyc/1030.htm
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