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Is It Ok To Run In Zone 4? [Solved]

Heart rate zone 4 is where the going gets tough. You’ll be breathing hard and working aerobically. If you train at this intensity, you’ll improve your speed endurance. Your body will get better at using carbohydrates for energy and you’ll be able to withstand higher levels of lactic acid in your blood for longer.19 Apr 2016

How to structure your Zone 4 Run Training

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Zone 3 Triathlon Training: Should You Train in Zone 3?

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HEARTRATE TRAINING MISTAKES RUNNERS MAKE | Sage Canaday Run Tips and Advice

Heart rate training? MAF method? Power Meters? Vo2max? I address these topics… SUBSCRIBE: …