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by dworrad
4848 days ago
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Many people will tell you that when you go in to "sugar burning" (approx 140bpm+) mode then you are doing very little to improve your aerobic capacity... Regardless of your heart rate being lower at certain points. Read about Mark Allen's (Ironman champion) experiences with this. To train your aerobic system you need to start in the aerobic zone and stay there religiously. IMHO |
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