Is "cardio" a myth?
Doug McGuff is a paleo ER doc who says that it doesn't.
Doesnt look like he's talking about chronic cardio either, but cardio at large.
asked byJoey_8 (0)
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on March 28, 2013
at 05:20 PM
Well, what he's saying is that the assumption that doing aerobic exercise has a causal link to an improved cardiovascular system is wrong. He's saying it's way more complicated than that and that it's only true to the extent that putting muscles, central nervous system and cells under strain through high quality exercise will improve your metabolic condition.
I'm no scientist, so I couldn't argue with the biology. I like McGuff's stuff, but I struggle with some of the assumptions made by him and his fellow weightlifters. The main one I struggle with is the assumption that weightlifting is somehow better than say, middle distance running. I would say they do different things, but I don't see why jogging is not as good for you as lifting heavy stuff. Is Usain Bolt fitter than Mo Farah? It depends on how you measure fitness. Can Dr McGuff run a 10km race comfortably? I don't know, but I doubt it.
It might be fair to assume that someone who lifts weights has just as healthy a heart as someone who jogs which probably runs against conventional wisdom, but is one or the other better? I'm not sure.