Great insight on effects of sprinting on the heart. According to this article Sprinting, a form of high intensity interval training, is a cardiorespiratory training method where you alternate short bouts of maximum effort with recovery periods. Article highlighted that Sprinting lets heart to beat rapidly and resultantly heart muscles become strengthened. According to a study published in “The American Journal of Physiology” Three days of 15 to 20 minutes of sprinting is better than 40 of 60 minutes of moderate training of 5 days. This is also very important that before starting sprinting you must consult his / her Physician be knowedgeable about your heart before starting sprinting. Read More
Sprinting and Peak Fitness Benefits Please also a great article at Pennstate World Campus site.