6 Ways to Improve Your Cardio Fitness VO2 Max

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With Apple’s focus on health sensors and integration with its Health app, it’s not surprising that the Apple Watch offers a ton of ways to help get fit. Some buyers even purchase the Apple Watch with the intent of improving their cardio routine, and while stats like heart rate are pretty obvious, there’s another important stat that the Apple Watch can help you measure – VO2 max, or the highest amount of oxygen your body is capable of using during a workout session.

It’s an overall measure of how…

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