Sprint training boosts heart's pumping power, new study shows

Researchers using invasive heart monitoring found that high-intensity interval training improves aerobic fitness primarily by enhancing the heart's ability to pump blood efficiently. The finding could reshape how fitness programs and cardiac rehabilitation are designed, with implications for gyms, health insurers, and sports medicine providers seeking evidence-based interventions.

Originaltitel: Increased maximal oxygen uptake after sprint-interval training is mediated by central haemodynamic factors as determined by right heart catheterization