High-intensity interval training (HIIT) is particularly effective for improving aerobic capacity. This exercise regimen involves alternating between short bursts of intense activity and periods of rest or lower-intensity effort. HIIT forces the heart and lungs to work harder, promoting adaptations that enhance overall cardiovascular functionality. Over time, participants typically experience increased endurance and improved oxygen uptake, resulting in more efficient exercise performance. Additionally, HIIT workouts can be completed in shorter durations compared to traditional steady-state training while still yielding substantive benefits, making them an excellent option for busy individuals seeking to enhance aerobic capacity.