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Zone 2 Cardio: Pros, Cons and Tips From Experts (CNET)
Posted: Jul 02, 2025 in In the News
This article was originally published by CNET on July 2, 2025.
Zone 2 cardio is one of the latest trends in fitness activity that may have you questioning if it is something you should add to your routine. Here's what you'll want to know before you start. It is a low-intensity, steady-state workout that allows you to sustain effort for an extended period while primarily using fat as fuel, says Gene Schafer, a NATABOC-certified athletic trainer and NSCA-certified strength and conditioning specialist. It means working at 60 to 70% of your maximum heart rate. It is said to be effective for losing fat, building endurance and improving heart health...
"Another benefit is the activation of the cell's mitochondria. Zone 2 training is effective for improving mitochondria function as well as increasing the number of mitochondria in the cells. This is why zone 2 training has become so popular, especially when discussing longevity. The health of the mitochondria will have a direct impact on the effects of aging on the body," says Mike Deibler, an NSCA-certified strength and conditioning specialist and a certified personal trainer with the American Council on Exercise...
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