On the surface, 15 minutes of jogging may feel equal to 30 minutes of walking. But the heart doesn’t only care about calorie burn; it cares about oxygen supply, blood circulation, and endurance. Brisk walking, even though longer, builds aerobic capacity, meaning the heart learns to use oxygen more efficiently over time.
Spot jogging, while intense, is more anaerobic, short, sharp, and without the long-term flow that strengthens the cardiovascular system. For those who want real heart health gains, duration often beats intensity.
