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Jay Guindon · 04-19-2010, 11:45 AM

So even if I do normal sprint intervals how many times per week can I get away with it without having to worry about dosing myself with cortisol?

04-19-2010, 11:45 AM	#6
Jay Guindon New Member Join Date: Feb 2010 Posts: 49	So even if I do normal sprint intervals how many times per week can I get away with it without having to worry about dosing myself with cortisol?