Base training is an 8-16 week training phase emphasizing low-intensity Zone 2 riding at 55-75% FTP to build aerobic capacity through mitochondrial development, capillarization, and enhanced fat oxidation. This foundational period prioritizes high-volume, low-intensity work (80-95% of total training time) over intervals, establishing the physiological platform that supports all subsequent threshold development, VO2max training, and race performance. Read more about Endurance training at: 

https://endurancetrainingprogram.com/

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