Having created a new algorithm called the
FIT Treadmill Score, they believe they can predict long-term death risk based solely on treadmill exercise performance. A person's score is determined by how well he or she does exercising on a treadmill at an increasing speed and incline. Originally described in the Mayo Clinic Proceedings, the research team analyzed over 58,000 heart stress tests to help them create a formula that can estimate a person's risk of dying over a decade. They believe that the score could provide important details about a person's health and that it should be calculated for anyone undergoing cardiac stress testing.
Source : http://www.philly.com/philly/health/sportsmedicine/Can_a_ride_on_the_treadmill_predict_your_mortality.html