Zone 2 training: Definition and benefits - Livescience.com

Zone 2 training could be the secret to improving your athletic performance and decreasing your risk of injury – this is how to use it

Zone 2 training has become a trendy term among fitness professionals in recent years, but what does it mean and what are the benefits? Zone 2 is one of five cardio heart rate zones (opens in new tab… [+8518 chars]

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