HIIT (High-Intensity Interval Training) is primarily designed to improve various fitness components, but it is not specifically aimed at improving aerobic endurance in the same way more moderate, continuous training does. However, HIIT can increase overall fitness and has benefits for both aerobic and anaerobic capacities.
Among the options provided, the one that HIIT can help you build most directly is:
D. Aerobic endurance
While HIIT is not typically associated with sustained efforts like sprinting for long durations, it can contribute to overall aerobic capacity.
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