mandisue992014 Member

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  • I've had my M3 for about 3 months and used it as much as I could-usually 3 times a week. I do the 14 interval session each time but was wondering if anyone else does back to back sessions? I wear a New Balance HRM and it shows that if I do 30 minutes my heart rate stays high. If I wear it an hour (half hour after…
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