Why Intensity Matters for Preserving VO2 Max as You Age
Let’s say you’re an adult in your 70s, running or biking or swimming two or three times a week. How hard should you push?
That’s the question posed in a new study in Medicine & Science in Sports & Exercise, from a research team led by Sindre Midttun of the Norwegian University of Science and Technology. The answer isn’t obvious—for reasons that may be familiar if you’ve been following recent debates about zone 2 exercise, polarized training, and other related fitness theories.
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