If you only consider running a marathon as an experience, you can run according to the relaxed heart rate range, that is, control your heart rate at 65% to 78% of your maximum heart rate.
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Runing Wechat
If you only consider running a marathon as an experience, you can run according to the relaxed heart rate range, that is, control your heart rate at 65% to 78% of your maximum heart rate.
.