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The Target Heart Rate Zone Improves Fitness

Credit: Iwan Beijes
article: How to Work out the Target Heart Rate Zone 		Other images from this article
The Target Heart Rate Zone Improves Fitness Aerobic Training Makes the Heart Stronger A Heart Rate Monitor Measures Pulse Rate Aerobic Exercise Burns Fat Exercising Aerobically Helps Prevent Heart Disease
The Target Heart Rate Zone Improves Fitness, Iwan Beijes