He might be talking about zone 2 in a 3-zone model? Otherwise, I agree, zone 2 i...

		loeg 16 days ago \| parent \| context \| favorite \| on: Ticker: Don't die of heart disease He might be talking about zone 2 in a 3-zone model? Otherwise, I agree, zone 2 in a 5- or 7-zone model is not intense enough to provide VO2 adaptation.