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I took a VO2 max test while sprinting on a treadmill. It taught me how fast I should run to burn fat and build muscle
businessinsider.com/vo2-max-test-running-cardio-zones-burn-fat-build-muscle-2025-9
I wore a mask to track how hard my heart was working during strenuous exercise.
Corrie Aune for BI
After running for over a decade, I wanted to see how healthy my heart is.
I got an active metabolic assessment at Life Time, measuring my VO2 max and heart rate.
I also learned which…
This story appeared on businessinsider.com, 2025-09-18 09:29:01.