Less Training Can Mean Faster Running

According to a study by the University of Copenhagen, runners who reduce their amount of training by 25% and replace that with speed endurance work can improve both their short-term and long-term performance results. Conditioned runners doing short sprints three to four times per week improved their times in 10Km runs by a full minute after six to nine weeks of altered training.

University of Copenhagen 2009 http://www.ku.dk/english/