Zone 2 training (60-70% of maximum heart rate) should be added to training programs because it increases mitochondrial density, which leads to improved oxygen utilization, increased fat oxidation, and enhanced lactic acid clearance
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Dr. YeohEvidence Quote
“it is very important that you add zone to workouts which are 60 to 70 percent of your maximum heart rate to your training program because this is the zone where you see an increase in mitochondrial density”
Created: 8/13/2026, 7:44:18 AM
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