After eating the Rapid Recovery Energy Bar, the energy Huang Chong had expended was instantly restored, and his fatigue was completely wiped away.
Therefore, he could once again maintain a high-intensity pace in Zone 4, the lactate threshold between aerobic and anaerobic.
As long as he didn't enter a sprint or stand up for a high-intensity out-of-the-saddle effort, he wouldn't enter Zone 5 anaerobic, which would cause lactate to build up rapidly in his body and plunge him into fatigue.
But in truth, after his heart had been optimized by the system multiple times, his maximum heart rate could no longer be calculated using the rough formula of (220 - age).
As for the exact number, even he didn't know.
However, during his daily training over the past few days, in addition to long aerobic rides, he had also done periodic, short-distance anaerobic sprint training.
